101
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Shen J, Wang T, Xie T, Wang R, Zhu D, Li Y, Xue S, Liu Y, Zeng H, Zhao W, Wang S. The excellent performance of oxygen evolution reaction on stainless steel electrodes by halogen oxyacid salts etching. J Colloid Interface Sci 2024; 675:1011-1020. [PMID: 39003814 DOI: 10.1016/j.jcis.2024.07.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 06/19/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
Development of low-cost, efficient, and stable electrocatalysts for oxygen evolution reaction (OER) is the key issue for a large-scale hydrogen production. Recently, in-situ corrosion of stainless steel seems to be a feasible technique to obtain an efficient OER electrode, while a wide variety of corrosive agents often lead to significant difference in catalytic performance. Herein, we synthesized Ni-Fe based nanomaterials with OER activity through a facile one-step hydrothermal etching method of stainless steel mesh, and investigated the influence of three halogen oxyacid salts (KClO3, KBrO3, KIO3) on water oxidation performance. It was found that the reduction product of oxyacid salts has the pitting effect on the stainless steel, which plays an important role in regulating the morphology and composition of the nanomaterials. The KBrO3-derived electrode shows optimal OER performance, giving the small overpotential of 228 and 270 mV at 10 and 100 mA cm-2 respectively, a low Tafel slope of 36.2 mV dec-1, as well as durable stability in the long-time electrolysis. This work builds an internal relationship between the corrosive agents and the OER performance of the as-prepared electrodes, providing promising strategies and research foundations for further improving the OER performance and optimizing the structure of stainless steel electrodes.
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Affiliation(s)
- Junyu Shen
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Tao Wang
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Tailai Xie
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Ruihan Wang
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Dingwei Zhu
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Yuxi Li
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Siyi Xue
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China
| | - Yazi Liu
- School of Environment, Nanjing Normal University, Jiangsu Engineering Lab of Water and Soil Eco-Remediation, Nanjing 210023, PR China.
| | - Hehua Zeng
- School of Chemistry and Chemical Engineering, Changji University, Changji, PR China.
| | - Wei Zhao
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, PR China.
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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102
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Zhang Q, Zeng X, Zhang Z, Jin C, Cui Y, Gao Y. Electronic transfer and structural reconstruction in porous NF/FeNiP-CoP@NC heterostructure for robust overall water splitting in alkaline electrolytes. J Colloid Interface Sci 2024; 675:357-368. [PMID: 38972123 DOI: 10.1016/j.jcis.2024.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/09/2024]
Abstract
Multimetal phosphides derived from metal-organic frameworks (MOFs) have garnered significant interest owing to their distinct electronic configurations and abundant active sites. However, developing robust and efficient catalysts based on metal phosphides for overall water splitting (OWS) remains challenging. Herein, we present an approach for synthesizing a self-supporting hollow porous cubic FeNiP-CoP@NC catalyst on a nickel foam (NF) substrate. Through ion exchange, the reconstruction chemistry transforms the FeNi-MOF nanospheres into intricate hollow porous FeNi-MOF-Co nanocubes. After phosphorization, numerous N, P co-doped carbon-coated FeNiP-CoP nanoparticles were tightly embedded within a two-dimensional (2D) carbon matrix. The NF/FeNiP-CoP@NC heterostructure retained a porous configuration, numerous heterogeneous interfaces, distinct defects, and a rich composition of active sites. Moreover, incorporating Co and the resulting structural evolution facilitated the electron transfer in FeNiP-CoP@NC, enhancing the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) processes. Consequently, the NF/FeNiP-CoP@NC catalyst demonstrated very low overpotentials of 78 mV for OER and 254 mV for HER in an alkaline medium. It also exhibited excellent long-term stability at various potentials (@10 mA cm-2, @20 mA cm-2, and @50 mA cm-2). As an overall water splitting cell, it required only 1.478 V to drive a current density of 50 mA cm-2 and demonstrated long-term stability. Density functional theory (DFT) calculations revealed a synergistic effect between multimetal phosphides, enhancing the intrinsic OER and HER activities of FeNiP-CoP@NC. This work not only elucidates the role of heteroatom induction in structural reconstruction but also highlights the importance of electronic structure modulation.
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Affiliation(s)
- Qingqing Zhang
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Xiaojun Zeng
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
| | - Zuliang Zhang
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Chulong Jin
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Yuanyuan Cui
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yanfeng Gao
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
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103
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Lian W, Huang Y, Yin Q, Guo Z, Xu Y, Miao T. Syntheses of heterometallic organic frameworks catalysts via multicomponent postmodification: For improving CO 2 photoreduction efficiency. J Colloid Interface Sci 2024; 675:94-103. [PMID: 38968640 DOI: 10.1016/j.jcis.2024.06.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/20/2024] [Accepted: 06/23/2024] [Indexed: 07/07/2024]
Abstract
To enhance the economic viability of photocatalytic materials for carbon capture and conversion, the challenge of employing expensive photosensitizer must be overcome. This study aims to improve the visible light utilization with zirconium-based metal-organic frameworks (Zr-MOFs) by employing a multi-component post-synthetic modification (PSM) strategy. An economical photosensitiser and copper ions are introduced into MOF 808 to enhance its photoreduction properties. Notably, the PSM of MOF 808 shows the highest CO yield up to 236.5 μmol g-1 h-1 with aHCOOH production of 993.6 μmol g-1 h-1 under non-noble metal, and its mechanistic insight for CO2 reaction is discussed in detail. The research results have important reference value for the potential application of photocatalytic metal-organic frameworks.
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Affiliation(s)
- Wanqi Lian
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Ying Huang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Qiaoqiao Yin
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Zhicheng Guo
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China
| | - Yun Xu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Tifang Miao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Material Science, Huaibei Normal University, Huaibei 235000, China.
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104
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Cheng B, Wang R, Wang X, Wang N, Ouyang XK. Heterojunction functionalized sodium alginate/carboxylated cellulose nanocrystals film enhancing sterilization performance for wound healing. Carbohydr Polym 2024; 345:122550. [PMID: 39227117 DOI: 10.1016/j.carbpol.2024.122550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/08/2024] [Accepted: 07/27/2024] [Indexed: 09/05/2024]
Abstract
In the realm of natural polysaccharides, hydrogen bonding is a prevalent feature, yet its role in enhancing photocatalytic antimicrobial properties has been underexplored. In this paper, heterojunctions formed by graphene oxide (GO) and ZIF-8 were locked in sodium alginate/ carboxylated cellulose nanocrystals via hydrogen bonding networks, designated as SCGZ. The SCGZ films exhibit superior photocatalytic performance compared to either ZIF-8 or heterojunctions. This enhancement is primarily due to two key factors: firstly, the hydrogen bonding network significantly enhances the transfer of protons and holes, thereby improving the separation efficiency of photo-generated carriers; secondly, the hydrogen bonding between the layers facilitates a more efficient charge transfer, which expedites the movement of electrons from ZIF-8 to GO upon illumination. In vitro studies demonstrated that the SCGZ films possess remarkable antibacterial capabilities, achieving 99.75 % and 99.61 % inhibition rates against S. aureus and E. coli, respectively. In vivo animal experiments have shown that SCGZ films can significantly accelerate the healing process of damaged tissues, with a healing efficiency of up to 90.5 %. This research provides additional insights into the development of natural polysaccharide-based multi‑hydrogen bonded macromolecules with enhanced photocatalytic properties.
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Affiliation(s)
- Baijie Cheng
- School of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Ruolin Wang
- School of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Xinhao Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Nan Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
| | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
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105
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Telek A, Molnár Z, Takács K, Varga B, Grolmusz V, Tasnádi G, Vértessy BG. Discovery and biocatalytic characterization of opine dehydrogenases by metagenome mining. Appl Microbiol Biotechnol 2024; 108:101. [PMID: 38229296 DOI: 10.1007/s00253-023-12871-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 01/18/2024]
Abstract
Enzymatic processes play an increasing role in synthetic organic chemistry which requires the access to a broad and diverse set of enzymes. Metagenome mining is a valuable and efficient way to discover novel enzymes with unique properties for biotechnological applications. Here, we report the discovery and biocatalytic characterization of six novel metagenomic opine dehydrogenases from a hot spring environment (mODHs) (EC 1.5.1.X). These enzymes catalyze the asymmetric reductive amination between an amino acid and a keto acid resulting in opines which have defined biochemical roles and represent promising building blocks for pharmaceutical applications. The newly identified enzymes exhibit unique substrate specificity and higher thermostability compared to known examples. The feature that they preferably utilize negatively charged polar amino acids is so far unprecedented for opine dehydrogenases. We have identified two spatially correlated positions in their active sites that govern this substrate specificity and demonstrated a switch of substrate preference by site-directed mutagenesis. While they still suffer from a relatively narrow substrate scope, their enhanced thermostability and the orthogonality of their substrate preference make them a valuable addition to the toolbox of enzymes for reductive aminations. Importantly, enzymatic reductive aminations with highly polar amines are very rare in the literature. Thus, the preparative-scale enzymatic production, purification, and characterization of three highly functionalized chiral secondary amines lend a special significance to our work in filling this gap. KEY POINTS: • Six new opine dehydrogenases have been discovered from a hot spring metagenome • The newly identified enzymes display a unique substrate scope • Substrate specificity is governed by two correlated active-site residues.
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Grants
- K119493 National Research, Development and Innovation Office
- K135231 National Research, Development and Innovation Office
- VEKOP-2.3.2-16-2017-00013 National Research, Development and Innovation Office
- NKP-2018-1.2.1-NKP-2018-00005 National Research, Development and Innovation Office
- TKP2021-EGA-02 National Research, Development and Innovation Office
- ÚNKP-22-4-II-BME-158 National Research, Development and Innovation Office
- RRF-2.3.1-21-2022-000 15 National Research, Development and Innovation Office
- C1580174 Nemzeti Kutatási, Fejlesztési és Innovaciós Alap
- ELTE TKP 2021-NKTA-62 Nemzeti Kutatási, Fejlesztési és Innovaciós Alap
- 2022-1.2.2-TÉT-IPARI-UZ-2022-00003 Nemzeti Kutatási, Fejlesztési és Innovaciós Alap
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Affiliation(s)
- András Telek
- Department of Applied Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary
- Servier Research Institute of Medicinal Chemistry, Budapest, Hungary
| | - Zsófia Molnár
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Budapest, Hungary
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Kristóf Takács
- PIT Bioinformatics Group, Institute of Mathematics, Eötvös University, Budapest, Hungary
| | - Bálint Varga
- PIT Bioinformatics Group, Institute of Mathematics, Eötvös University, Budapest, Hungary
| | - Vince Grolmusz
- PIT Bioinformatics Group, Institute of Mathematics, Eötvös University, Budapest, Hungary
| | - Gábor Tasnádi
- Servier Research Institute of Medicinal Chemistry, Budapest, Hungary.
| | - Beáta G Vértessy
- Department of Applied Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary.
- Institute of Molecular Life Sciences, Research Centre for Natural Sciences, HUN-REN, Budapest, Hungary.
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106
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Zhang S, Liu S, Cao W, Luo J, Gu Y, Liu X, Tan P, Wang Z, Pan J. Microwave heating-assisted synthesis of ultrathin platinum-based trimetallic nanosheets as highly stable catalysts towards oxygen reduction reaction in acidic medium. J Colloid Interface Sci 2024; 675:1108-1118. [PMID: 39059077 DOI: 10.1016/j.jcis.2024.07.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/16/2024] [Accepted: 07/20/2024] [Indexed: 07/28/2024]
Abstract
There are currently almost no ternary platinum-based nanosheets used for acidic oxygen reduction reactions (ORR) due to the difficulty in synthesizing ternary nanosheets with high Pt content. In this work, several ultrathin platinum-palladium-copper nanosheets (PtPdCu NSs) with a thickness of around 1.90 nm were prepared via a microwave heating-assisted method. Microwave heating allows a large number of Pt atoms to deposit into PdCu nanosheets, forming Pt-based ternary nanosheets with high Pt content. Among them, Pt38Pd50Cu12 NSs catalyst displays the highest mass activity (MA) measured in 0.1 M HClO4 of 0.932 A/mgPt+Pd which is 8.6 times of that Pt/C. Besides, Pt38Pd50Cu12 NSs catalyst also exhibits excellent stability with an extremely low MA attenuation after 80,000 cycles accelerated durability testing (ADT) tests. In the single cell tests, the Pt38Pd50Cu12 NSs catalyst manifests higher maximum power density of 796 mW cm-2 than Pt/C of 606 mW cm-2. Density functional theory (DFT) calculations indicate the weaker adsorption between Pt and O-species in Pt38Pd50Cu12 NSs leads to a significant enhancement of ORR activity. This study provides a new strategy to design and prepare ultrathin Pt-based trimetallic nanosheets as efficient and durable ORR catalysts.
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Affiliation(s)
- Shaohui Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China
| | - Suying Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Wei Cao
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Juan Luo
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China
| | - Yuke Gu
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China
| | - Xuanzhi Liu
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China
| | - Pengfei Tan
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China.
| | - Ziyu Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
| | - Jun Pan
- State Key Laboratory of Powder Metallurgy, Central South University, 932 Lushan Road, Changsha 410083, China.
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107
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Cai W, Liu J, Luo Y, Liao Z, Li B, Xiang X, Fang Y. Bifunctional CdS-MoO 2 catalysts for selective oxidation of lactic acid coupled with photocatalytic H 2 production. J Colloid Interface Sci 2024; 675:836-847. [PMID: 39002234 DOI: 10.1016/j.jcis.2024.07.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
The persistent hurdles of charge rapid recombination, inefficient use of light and utilization of sacrificial reagents have plagued the field of photocatalytic hydrogen evolution (PHE). In this research, tiny MoO2 nanoparticles of 10 nm in diameter were prepared through a straightforward solvothermal approach with a specific ratio of oleylamine and oleic acid as stabilizers. The critical factor in the synthesis process was found to be the ratio of oleylamine to oleic acid. Moreover, a two-phase interface assembly method facilitated the uniform deposition of MoO2 onto CdS nanorods. Due to the localized plasmonic-thermoelectric effect on the surface of MoO2 along with its abundant oxygen vacancies, the composite catalyst exhibited outstanding photo-utilization efficiency and an abundance of active sites. The CdS-MoO2 composite displayed a unique photochemical property in transforming lactic acid into pyruvic acid and generating hydrogen simultaneously. After exposure to artificial sunlight for 4 h, significant values of 4.7 and 3.7 mmol⋅g-1⋅h-1 were achieved for hydrogen production and pyruvic acid formation, respectively, exceeding CdS alone by 3.29 and 4.02-fold, while the selectivity of pyruvic acid was 95.68 %. Furthermore, the S-Scheme electron transport mechanism in the composites was elucidated using Electron Paramagnetic Resonance (EPR) spectroscopy, radical trapping experiments, energy band structure analysis, and the identification of critical intermediates in the process of selective oxidation. This work sheds light on the design and preparation of high-performance photocatalysts for biorefining coupled with efficient hydrogen evolution.
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Affiliation(s)
- Wei Cai
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Jincheng Liu
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China.
| | - Yijun Luo
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Zewei Liao
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Bingjie Li
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Xiaoyan Xiang
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Yanxiong Fang
- Guangdong University of Technology, School of Light Industry & Chemical Engineering, Guangzhou Key Lab Clean Transport Energy Chemistry, Guangzhou 510006, China; School of Advanced Manufacturing, Guangdong University of Technology, Jieyang Center of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
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108
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Zhang L, Luo S, Fan R, Li R, Li W, Chen S, Lan F, Zhu Y, Ji T, Zhang Y, Li L. Localized Cas12a-based cascade amplification for sensitive and robust detection of APE1. Talanta 2024; 280:126773. [PMID: 39197313 DOI: 10.1016/j.talanta.2024.126773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/30/2024] [Accepted: 08/24/2024] [Indexed: 09/01/2024]
Abstract
APE1, an essential enzyme for DNA repair, is overexpressed in various cancers and has been identified as a potential biomarker for cancer diagnosis. However, detecting APE1 at low expression levels in the early stage of cancer presents a significant obstacle. Here, we introduced a novel localized Cas12a-based cascade amplification (LCas12a-CA) method. This method confined both the terminal deoxynucleotidyl transferase and the crRNA/Cas12a complex onto the surfaces of gold nanoparticles (AuNPs). This confinement not only boosts the stability of the multiple enzymes but also induces a substrate channeling effect. As a result, it significantly accelerates the reaction rate and enhances the sensitivity of APE1 detection. Upon the addition of APE1, the AP sites within the APE1 primer can be recognized and cleaved by APE1, exposing the 3'-OH ends. In the presence of LCas12a-CA, polyA sequences are generated at 3'-OH ends with the help of TdT and dATP. The sequences directly enter the Cas12a system, activating the trans-cleavage activity of Cas12a, thereby cutting the reporters on the surface of AuNPs and releasing fluorescence. Our platform demonstrates a detection limit (LOD) as low as 2.51 × 10-6 U/mL, which is more than 60 times lower than that of free Cas12a-CA. Furthermore, the LCas12a-CA exhibits enhanced resistance ability in extreme environments and has been proven effective for the detection of APE1 in clinical samples. Overall, this work offers a promising platform for robust biosensing in cancer diagnosis and prognosis.
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Affiliation(s)
- Lifeng Zhang
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China; Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Shihua Luo
- Center for Clinical Laboratory Diagnosis and Research, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China; Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi of Guangxi Higher Education Institutions, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Rui Fan
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China; Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Ruixi Li
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Wenbin Li
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Siting Chen
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Fei Lan
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yitong Zhu
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Tingting Ji
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Ye Zhang
- Laboratory Medicine Center, Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Ling Li
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China; School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
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109
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Schwartzman JD, McCall M, Ghattas Y, Pugazhendhi AS, Wei F, Ngo C, Ruiz J, Seal S, Coathup MJ. Multifunctional scaffolds for bone repair following age-related biological decline: Promising prospects for smart biomaterial-driven technologies. Biomaterials 2024; 311:122683. [PMID: 38954959 DOI: 10.1016/j.biomaterials.2024.122683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/09/2024] [Accepted: 06/23/2024] [Indexed: 07/04/2024]
Abstract
The repair of large bone defects due to trauma, disease, and infection can be exceptionally challenging in the elderly. Despite best clinical practice, bone regeneration within contemporary, surgically implanted synthetic scaffolds is often problematic, inconsistent, and insufficient where additional osteobiological support is required to restore bone. Emergent smart multifunctional biomaterials may drive important and dynamic cellular crosstalk that directly targets, signals, stimulates, and promotes an innate bone repair response following age-related biological decline and when in the presence of disease or infection. However, their role remains largely undetermined. By highlighting their mechanism/s and mode/s of action, this review spotlights smart technologies that favorably align in their conceivable ability to directly target and enhance bone repair and thus are highly promising for future discovery for use in the elderly. The four degrees of interactive scaffold smartness are presented, with a focus on bioactive, bioresponsive, and the yet-to-be-developed autonomous scaffold activity. Further, cell- and biomolecular-assisted approaches were excluded, allowing for contemporary examination of the capabilities, demands, vision, and future requisites of next-generation biomaterial-induced technologies only. Data strongly supports that smart scaffolds hold significant promise in the promotion of bone repair in patients with a reduced osteobiological response. Importantly, many techniques have yet to be tested in preclinical models of aging. Thus, greater clarity on their proficiency to counteract the many unresolved challenges within the scope of aging bone is highly warranted and is arguably the next frontier in the field. This review demonstrates that the use of multifunctional smart synthetic scaffolds with an engineered strategy to circumvent the biological insufficiencies associated with aging bone is a viable route for achieving next-generation therapeutic success in the elderly population.
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Affiliation(s)
| | - Max McCall
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Yasmine Ghattas
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Abinaya Sindu Pugazhendhi
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Fei Wei
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Christopher Ngo
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Sudipta Seal
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA; Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, USA, Orlando, FL
| | - Melanie J Coathup
- College of Medicine, University of Central Florida, Orlando, FL, USA; Biionix Cluster, University of Central Florida, Orlando, FL, USA.
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110
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Liu Q, You J, Xiong Y, Liu W, Song M, Ren J, Xue Q, Tian J, Zhang H, Wang X. Synergistic effect of interstitial phosphorus doping and MoS 2 modification over Zn 0.3Cd 0.7S for efficient photocatalytic H 2 production. J Colloid Interface Sci 2024; 675:772-782. [PMID: 39002228 DOI: 10.1016/j.jcis.2024.07.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/19/2024] [Accepted: 07/05/2024] [Indexed: 07/15/2024]
Abstract
ZnxCd1-xS photocatalysts have been widely investigated due to their diverse morphologies, suitable band gaps/band edge positions, and high electronic mobility. However, the sluggish charge separation and severe charge recombination impede the application of ZnxCd1-xS for hydrogen evolution reaction (HER). Herein, doping of phosphorus (P) atoms into Zn0.3Cd0.7S has been implemented to elevate S vacancies concentration as well as tune its Fermi level to be located near the impurity level of S vacancies, prolonging the lifetime of photogenerated electrons. Moreover, P doping induces a hybridized state in the bandgap, leading to an imbalanced charge distribution and a localized built-in electric field for effective separation of photogenerated charge carriers. Further construction of intimate heterojunctions between P-Zn0.3Cd0.7S and MoS2 accelerates surface redox reaction. Benefiting from the above merits, 1 % MoS2/P-Zn0.3Cd0.7S exhibits a high hydrogen production rate of 30.65 mmol·g-1·h-1 with AQE of 22.22 % under monochromatic light at 370 nm, exceeding most ZnxCd1-xS based photocatalysts reported so far. This work opens avenues to fabricate examplary photocatalysts for solar energy conversion and beyond.
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Affiliation(s)
- Qian Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Junhua You
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, Liaoning, PR China.
| | - Ya Xiong
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China.
| | - Wendi Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Mingfang Song
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Jiali Ren
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Qingzhong Xue
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China.
| | - Jian Tian
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China.
| | - Hangzhou Zhang
- Department of Operating Theatre; Department of Orthopedics; Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University; Shenyang Sports Medicine Clinical Medical Research Center, Shenyang 110870, Liaoning, PR China
| | - Xiaoxue Wang
- Department of Operating Theatre; Department of Orthopedics; Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University; Shenyang Sports Medicine Clinical Medical Research Center, Shenyang 110870, Liaoning, PR China.
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111
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Wang J, Gao A, Gao F, Yi L, Yao Y, Yi H, Zhou Y, Duan E, Tang X. The generation of sulfate species on Ir-based catalysts for boosting NO reduction with CO under the coexistence of O 2 and SO 2 atmosphere. J Colloid Interface Sci 2024; 675:935-946. [PMID: 39002243 DOI: 10.1016/j.jcis.2024.06.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/03/2024] [Accepted: 06/28/2024] [Indexed: 07/15/2024]
Abstract
Generally, sulfur poisoning is considered to be one of the main factors contributing to the deactivation of selective catalytic reduction of NOx by CO (CO-SCR) catalysts, while the promotional effect of SO2 on NO reduction over Ir/SiO2 is observed which is an interesting scientific phenomenon. After the introduction of 20 ppm SO2, NOx conversion increased from ∼ 40 % to ∼ 90 % at 275 °C, and N2 selectivity increased from ∼ 80 % to 100 % at 200 ∼ 300 °C. Furthermore, the promoting effect could remain unchanged after 24 h of continuous reaction. However, the temperature point for achieving complete conversion of CO increased from 225 °C to 275 °C after the introduction of SO2. Experimental characterization and theoretical calculation jointly proved that the inhibition of CO oxidation by the generation of sulfate was the main reason for promoting NO reduction. Under the coexistence of O2 and SO2, SO2 was firstly oxidized to SO3 on the iridium surface and generated sulfate species on surface hydroxyl groups of SiO2. Some active sites for O2 adsorption were covered by the generated surface sulfate, and adsorbed CO was hard to react with adsorbed O2, resulting in Langmuir-Hinshelwood (L-H) reaction pathways for CO oxidation being inhibited. Therefore, unoxidized CO reacted with NO adsorbed species and generated N2O to generate N2 and CO2, improving NO reduction. This new insight has implications for understanding the promotional effect of SO2 on NO reduction with CO in the presence of O2.
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Affiliation(s)
- Junyi Wang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Aifang Gao
- School of Water Resources and Environment, Hebei GEO University, Shijiazhuang, Hebei 050031, China
| | - Fengyu Gao
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
| | - Lei Yi
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Yuan Yao
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Honghong Yi
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Yuansong Zhou
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Erhong Duan
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China
| | - Xiaolong Tang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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112
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Lv F, He L, Bai X, Wang D, Zhao Y. Enhancing photocatalytic CO 2 reduction activity through Cobalt-Bismuth bimetallic Nanoparticle-Modified Nitrogen-Doped graphite carbon. J Colloid Interface Sci 2024; 675:1069-1079. [PMID: 39018634 DOI: 10.1016/j.jcis.2024.07.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/06/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
Efficient charge transfer and effective separation of photo-generated charge carriers are crucial factors in photocatalysis. In this study, we present the design of a composite photocatalyst consisting of cobalt and bismuth (CoBi) bimetallic nanoparticles incorporated into a honeycomb nitrogen-doped graphitic carbon (N-GC) matrix. The ultra-thin porous N-GC matrix exhibits excellent electrical conductivity, a high number of active sites, and enables efficient absorption and multiple reflection of incident light. The CoBi bimetal-N-GC interface establishes a self-driven charge transport channel that effectively suppresses the backflow of photogenerated electrons, leading to prolonged separation of photo-generated carriers and a significant improvement in photocatalytic activity. The CoBi@N-GC catalyst showcases outstanding performance, producing CH4 and CO at rates of 36.07 μmol·g-1·h-1 and 44.09 μmol·g-1·h-1 respectively, confirming its superior photocatalytic capabilities.
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Affiliation(s)
- Fei Lv
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Lang He
- Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
| | - Xue Bai
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Du Wang
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China.
| | - Yan Zhao
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, PR China; College of Materials Science and Engineering, Sichuan University, Chengdu 610065, PR China.
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113
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de La Bourdonnaye G, Ghazalova T, Fojtik P, Kutalkova K, Bednar D, Damborsky J, Rotrekl V, Stepankova V, Chaloupkova R. Computer-aided engineering of stabilized fibroblast growth factor 21. Comput Struct Biotechnol J 2024; 23:942-951. [PMID: 38379823 PMCID: PMC10877085 DOI: 10.1016/j.csbj.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/03/2024] [Accepted: 02/03/2024] [Indexed: 02/22/2024] Open
Abstract
FGF21 is an endocrine signaling protein belonging to the family of fibroblast growth factors (FGFs). It has emerged as a molecule of interest for treating various metabolic diseases due to its role in regulating glucogenesis and ketogenesis in the liver. However, FGF21 is prone to heat, proteolytic, and acid-mediated degradation, and its low molecular weight makes it susceptible to kidney clearance, significantly reducing its therapeutic potential. Protein engineering studies addressing these challenges have generally shown that increasing the thermostability of FGF21 led to improved pharmacokinetics. Here, we describe the computer-aided design and experimental characterization of FGF21 variants with enhanced melting temperature up to 15 °C, uncompromised efficacy at activation of MAPK/ERK signaling in Hep G2 cell culture, and ability to stimulate proliferation of Hep G2 and NIH 3T3 fibroblasts cells comparable with FGF21-WT. We propose that stabilizing the FGF21 molecule by rational design should be combined with other reported stabilization strategies to maximize the pharmaceutical potential of FGF21.
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Affiliation(s)
- Gabin de La Bourdonnaye
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Tereza Ghazalova
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Petr Fojtik
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - David Bednar
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jiri Damborsky
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | | | - Radka Chaloupkova
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
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114
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Guan L, Gao Y, Li C, Wang H, Zhang W, Teng B, Wen X. Theoretical study of the effects of surface Cu coordination environment on CO 2 hydrogenation to CH 3OH. J Colloid Interface Sci 2024; 675:496-504. [PMID: 38986323 DOI: 10.1016/j.jcis.2024.07.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/17/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
The coordination environment of Cu (the coordination number and arrangement of surface atoms) plays an important role in CO2 hydrogenation to CH3OH. Compared with the extensive studies of the effects of coordination number, the comprehensive effects of coordination number and arrangement of surface atoms were seldom explored in literature. To unravel the effects of surface Cu coordination environment on CO2 hydrogenation to CH3OH, the adsorption and reaction behaviors of H2 and CO2 on Cu(111), (100), (110) and (211) with different coordination numbers and arrangement of surface Cu were systematically calculated by density functional theory (DFT) and kinetic Monte Carlo (kMC) simulation. It was found that the adsorption energies of intermediates in CO2 hydrogenation on Cu surfaces increase with the decrease of coordination number. When the Cu coordination numbers are similar, the charge density on the open surface derived from the different atom arrangement becomes larger and leads to stronger interaction with intermediates than that on the compact one. DFT calculation and kMC simulation indicate that methanol formation pathway follows CO2*→HCOO*→HCOOH*→H2COOH*→H2CO*→CH3O*→CH3OH* on four Cu facets; CO formation is via CO2 direct dissociation on Cu(111), (100) and (110) but COOH* dissociation on (211). The low-coordinated surface Cu with more openness on Cu(211) is the highly active site for CO2 hydrogenation to CH3OH with high turnover of frequency (3.71 × 10-4 s-1) and high selectivity (87.17 %) at 600 K, PCO2 = 7.5 atm and PH2 = 22.5 atm, which is much higher than those on Cu(111), (100) and (110). This work unravels the effects of coordination environment on CO2 hydrogenation at the molecular level and provides an important insight into the design and development of catalysts with high performance in CO2 hydrogenation to CH3OH.
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Affiliation(s)
- Lifang Guan
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yuzhao Gao
- School of Statistics, Shanxi University of Finance and Economics, Taiyuan 030006, PR China
| | - Chunrong Li
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - He Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
| | - Weiyi Zhang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Botao Teng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
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115
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Li G, Lian Z, Lyu Q, Zhu C, Liu Z, Zhang S, Zhong Q. Built-in electric field mediated S-scheme charge migration and Co-N4(II) sites in cobalt phthalocyanine/MIL-68(In)-NH 2 heterojunction for boosting photocatalytic nitric oxide oxidation. J Colloid Interface Sci 2024; 675:549-559. [PMID: 38986328 DOI: 10.1016/j.jcis.2024.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/14/2024] [Accepted: 07/04/2024] [Indexed: 07/12/2024]
Abstract
The efficiency of photocatalytic Nitric Oxide(NO) oxidation is limited by the lack of oxygen(O2) active sites and poor charge carrier separation. To address this challenge, we developed a molecular Cobalt Phthalocyanine modified MIL-68(In)-NH2 photocatalyst with a robust Built-in electric field(BIEF). In the 2 % CoPc-MIN sample, the BIEF strength is increased by 3.54 times and 5.83 times compared to pristine CoPc and MIL-68(In)-NH2, respectively. This BIEF facilitates the efficient S-scheme charge transfer, thereby enhancing photogenerated carrier separation. Additionally, the Co-N4(II) sites in CoPc can effectively trap the separated photoexcited electrons in the S-scheme system. In addition, the Co-N4(II) sites can also serve as active sites for O2 adsorption and activation, promoting the generation of superoxide radical (O2-), thereby driving the direct conversion of NO to nitrate(NO3-). Consequently, the 2 % CoPc-MIN sample exhibits a remarkable photocatalytic NO removal efficiency of 79.37 % while effectively suppressing the formation of harmful by-product nitrogen dioxide(NO2) to below 3.5 ppb. This study provides a feasible strategy for designing high-efficiency O2 activation photocatalysts for NO oxidation.
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Affiliation(s)
- Guojun Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Zheng Lian
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Qiuqiu Lyu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Chenyu Zhu
- State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Zhinian Liu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Shule Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Qin Zhong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
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116
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Xu S, Zhang H, Qian Z, Yuan W. pH-Responsive injectable self-healing hydrogels loading Au nanoparticles-decorated bimetallic organic frameworks for synergistic sonodynamic-chemodynamic-starvation-chemo therapy of cancer. J Colloid Interface Sci 2024; 675:746-760. [PMID: 38996704 DOI: 10.1016/j.jcis.2024.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/14/2024]
Abstract
A novel and efficient cancer therapy was developed using a smart hydrogel containing multifunctional bimetallic organic frameworks and anticancer drugs. The injectable self-healing hydrogel with pH-responsiveness was constructed through borate ester and imine bonds among dopamine-grafted sodium alginate (SADA), hydroxypropyl chitosan (HPCS) and 2-formylphenylboronic acid (2-FPBA). The Au nanoparticles-decorated Ti/Fe bimetallic organic framework tetragonal nanosheets (Au/TF-MOF TNS) were synthesized and incorporated into the hydrogel with the anticancer drugs doxorubicin (DOX). Upon intratumoral injection of nanocomposite hydrogel, the acidic tumor microenvironment triggered the cleavage of borate ester and imine bonds, causing the hydrogel to break down and accelerating the release of both Au/TF-MOF TNS and DOX. These Au/TF-MOF TNS functioned as nanozymes, producing hydroxyl radicals (·OH) for chemodynamic therapy (CDT), generating oxygen (O2) to support sonodynamic therapy (SDT), and depleting glucose for starvation therapy (ST). Additionally, the Au/TF-MOF TNS served as sonosensitizers, capable of converting O2 into singlet oxygen (1O2) upon ultrasound irradiation to achieve SDT. Therefore, this nanocomposite hydrogel system enabled synergistic sonodynamic-chemodynamic-starvation-chemo therapy (SDT-CDT-ST-CT) of cancer, presenting a promising platform for advanced cancer therapy strategies.
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Affiliation(s)
- Sicheng Xu
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Hanyan Zhang
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Zhiyi Qian
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China.
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117
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Wang H, Wu S, Zhao P, Wang C, Guo L, Wang Y. Modulation of morphology and electronic structure of cobalt thiophenedicarboxylic coordination polymer via ligand exchange for high-performance oxygen evolution reaction and supercapacitor. J Colloid Interface Sci 2024; 675:712-720. [PMID: 38996701 DOI: 10.1016/j.jcis.2024.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
Rationally designing metal organic frameworks (MOFs) as an ideal dual-function material for water electrolysis and supercapacitors is of great significance for energy storage and conversion. Herein, we successfully synthesized the nanoneedle-like structure CoNi-MOF by partially replacing 2, 5-thiophenedicarboxylic acid (TDA) with 1, 1'-Ferrocenedicarboxylate (Fc). The exchange of Fc ligand can modulate the morphology and electronic structure of CoNi-TDA, thus exposing the abundant active sites and improving the electrical conductivity. The as-prepared CoNi-TDA/0.2Fc exhibited a low overpotential of 236 mV at 10 mA cm-2 for oxygen evolution reaction (OER) and a low Tafel slope of 40.44 mV dec-1. Additionally, CoNi-TDA/0.2Fc demonstrated a notable specific capacitance of 1409 F g-1 at 1 A/g and excellent stability, maintaining a capacitance retention of 96.54 % after 20,000 cycles. The study proposes a new strategy to modulate the morphology and electronic structure of MOFs via the ligand exchange for high-performance energy storage and conversion device.
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Affiliation(s)
- Hong Wang
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Shanxi Key Laboratory of Efficient Hydrogen Storage & Production Technology and Application, North University of China, Taiyuan 030051, PR China
| | - Shuai Wu
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Shanxi Key Laboratory of Efficient Hydrogen Storage & Production Technology and Application, North University of China, Taiyuan 030051, PR China
| | - Peihua Zhao
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China
| | - Chao Wang
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Shanxi Key Laboratory of Efficient Hydrogen Storage & Production Technology and Application, North University of China, Taiyuan 030051, PR China
| | - Li Guo
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Shanxi Key Laboratory of Efficient Hydrogen Storage & Production Technology and Application, North University of China, Taiyuan 030051, PR China.
| | - Yanzhong Wang
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Shanxi Key Laboratory of Efficient Hydrogen Storage & Production Technology and Application, North University of China, Taiyuan 030051, PR China.
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118
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Yang M, Xiao L, Chen WT, Deng X, Hu G. Recent advances on metal-organic framework-based electrochemical sensors for determination of organic small molecules. Talanta 2024; 280:126744. [PMID: 39186861 DOI: 10.1016/j.talanta.2024.126744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/30/2024] [Accepted: 08/20/2024] [Indexed: 08/28/2024]
Abstract
Metal-organic frameworks (MOFs) are an extraordinarily versatile class of porous materials renowned for their intricate three-dimensional skeletal architectures and exceptional chemical properties. These extraordinary attributes have pushed MOFs into the vanguard of diverse disciplines such as microporous conduction, catalysis, separation, biomedical engineering, and electrochemical sensing. The focus of this review is to offer a comprehensive summary of recent advancements in designing MOF-based electrochemical sensors for detecting organic small molecules. offer a comprehensive survey of the recent progress in the methodologies adopted for the construction of MOF composites, covering template-assisted synthesis, Modification in synthesis, and post-synthesis modification. In addition, we discuss the practical application of MOF-based electrochemical sensors in the detection of organic small molecules. Our findings highlight the superior electrochemical sensing capabilities of these novel composites compared to those of their pristine counterparts. In conclusion, we provide a condensed perspective on the potential future trajectories in this domain, underscoring the impetus for continued enquiry and enhancement of MOF composite assemblies. With sustained investigation, the horizon appears bright for electrochemical sensing of small organic molecules and their myriad applications.
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Affiliation(s)
- Mengxia Yang
- Qilu Lake Field Scientific Observation and Research Station for Plateau Shallow Lake in Yunnan Province, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Linfeng Xiao
- Qilu Lake Field Scientific Observation and Research Station for Plateau Shallow Lake in Yunnan Province, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Wen-Tong Chen
- Key Laboratory of Coordination Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, 343009, China
| | - Xiujun Deng
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming, 650214, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China
| | - Guangzhi Hu
- Qilu Lake Field Scientific Observation and Research Station for Plateau Shallow Lake in Yunnan Province, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China.
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119
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Jiang R, Yue Z, Shang L, Wang D, Wei N. PEZy-miner: An artificial intelligence driven approach for the discovery of plastic-degrading enzyme candidates. Metab Eng Commun 2024; 19:e00248. [PMID: 39310048 PMCID: PMC11414552 DOI: 10.1016/j.mec.2024.e00248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/14/2024] [Accepted: 09/03/2024] [Indexed: 09/25/2024] Open
Abstract
Plastic waste has caused a global environmental crisis. Biocatalytic depolymerization mediated by enzymes has emerged as an efficient and sustainable alternative for plastic treatment and recycling. However, it is challenging and time-consuming to discover novel plastic-degrading enzymes using conventional cultivation-based or omics methods. There is a growing interest in developing effective computational methods to identify new enzymes with desirable plastic degradation functionalities by exploring the ever-increasing databases of protein sequences. In this study, we designed an innovative machine learning-based framework, named PEZy-Miner, to mine for enzymes with high potential in degrading plastics of interest. Two datasets integrating information from experimentally verified enzymes and homologs with unknown plastic-degrading activity were created respectively, covering eleven types of plastic substrates. Protein language models and binary classification models were developed to predict enzymatic degradation of plastics along with confidence and uncertainty estimation. PEZy-Miner exhibited high prediction accuracy and stability when validated on experimentally verified enzymes. Furthermore, by masking the experimentally verified enzymes and blending them into homolog dataset, PEZy-Miner effectively concentrated the experimentally verified entries by 14∼30 times while shortlisting promising plastic-degrading enzyme candidates. We applied PEZy-Miner to 0.1 million putative sequences, out of which 27 new sequences were identified with high confidence. This study provided a new computational tool for mining and recommending promising new plastic-degrading enzymes.
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Affiliation(s)
- Renjing Jiang
- Department of Civil and Environmental Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, United States
| | - Zhenrui Yue
- School of Information Sciences, University of Illinois Urbana-Champaign, Champaign, IL, 61820, United States
| | - Lanyu Shang
- School of Information Sciences, University of Illinois Urbana-Champaign, Champaign, IL, 61820, United States
| | - Dong Wang
- School of Information Sciences, University of Illinois Urbana-Champaign, Champaign, IL, 61820, United States
| | - Na Wei
- Department of Civil and Environmental Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, United States
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Zhang Q, Fang W, Ma J, Yu X, Zhao Y, Xie H, Li G, Li H. Enhancing heterogeneous Fenton-like catalysis through pyrrolidine modification of Fe 2O 3-CuO composites with oxygen-vacancy defects. J Colloid Interface Sci 2024; 675:947-957. [PMID: 39002244 DOI: 10.1016/j.jcis.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/16/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
Enhancing the generation of reactive hydroxyl radicals (•OH) is crucial for overcoming the limitations of the low reactivity of heterogeneous Fenton Fe-based catalysts. Researchers have explored various methods to modify catalyst structures to enhance reactivity, yet often at the expense of stability. Herein, suitable carbon and nitrogen-codoped Fe2O3-CuO composites were synthesized via pyrolysis method, demonstrating high Fenton reaction activity and remarkable stability. Experimental findings and density functional theory calculations (DFT) revealed that the presence of oxygen vacancies on the catalyst surface facilitated an increase in exposed FeNC active sites, promoting electron transfer and the accelerating the rate of •OH generation. Moreover, carbon and nitrogen, particularly in the form of pyrrole nitrogen bonded to Fe imparted exceptional stability to the FeNC active sites, mitigating their dissolution. Additionally, the Fe-based catalysts exhibited strong magnetism, enabling easy separation from the reaction solution while maintaining a high degradation efficiency for various organic pollutants, even in the presence of multiple anions. Furthermore, a comprehensive mechanism for methylene blue (MB) degradation was identified, enhancing the potential practical applications of these catalysts.
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Affiliation(s)
- Qi Zhang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China; Lanzhou Petrochemical University of Vocational Technology, Lanzhou 730060, Gansu, China
| | - Weiguo Fang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
| | - Jingjing Ma
- Lanzhou Petrochemical University of Vocational Technology, Lanzhou 730060, Gansu, China
| | - Xinxin Yu
- Lanzhou Petrochemical University of Vocational Technology, Lanzhou 730060, Gansu, China
| | - Yu Zhao
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd, Hangzhou 310000, Zhejiang, China
| | - Guixian Li
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, Gansu, China.
| | - Hongwei Li
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China; Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, Gansu, China.
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Duan F, Sheng J, Shi S, Li Y, Liu W, Lu S, Zhu H, Du M, Chen X, Wang J. Protonated Z-scheme CdS-covalent organic framework heterojunction with highly efficient photocatalytic hydrogen evolution. J Colloid Interface Sci 2024; 675:620-629. [PMID: 38991276 DOI: 10.1016/j.jcis.2024.07.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/26/2024] [Accepted: 07/06/2024] [Indexed: 07/13/2024]
Abstract
The low efficiency of photocatalytic hydrogen production from water is mainly suffer from limited light absorption, charge separation and water delivery to the active centers. Herein, an inorganic-organic Z-scheme heterojunction (CdS-COF-Ni) is constructed by in-situ growth of CdS nanosheets on the porphyrin-based covalent organic framework with nickel ions (COF-Ni) in the porphyrin centers. A built-in electric field is formed at the interface, which accelerates the separation and transfer of photogenerated charges. Moreover, through the surface protonation treatment in ascorbic acid (AC) solution, the hydrophilicity of the obtained composite is obviously increased and facilitates the transport of water molecules to the photocatalytic centers. Under the synergistic effect of the interfacial interaction and surface protonation treatment, the photocatalytic hydrogen production rate is optimized to be 18.23 mmol h-1 g-1 without adding any cocatalysts, which is 21 times that of CdS. After a series of photoelectrochemical measurements, in situ X-ray photoelectron spectroscopy (XPS) analysis, and density functional theory (DFT) calculations, it is found that the photocatalytic charge transfer pathway conforms to the Z-scheme mechanism, which not only greatly accelerates the separation and transfer of photogenerated charges, but also retains a high reduction capacity for water splitting. This work offers a good strategy for constructing highly efficient organic-inorganic heterojunctions for water splitting.
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Affiliation(s)
- Fang Duan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China.
| | - Jialiang Sheng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Songhu Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Yujie Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Wenhao Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Shuanglong Lu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Han Zhu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Mingliang Du
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Xin Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Jun Wang
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Department of Packaging Engineering, Jiangnan University, Wuxi 214122, PR China.
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Li SL, Chen Y, Tian G, Kou L, Qiao L, Zhao Y, Gan LY. High catalytic activity and abundant active sites in M 2C 12 monolayer for nitrogen reduction reaction. J Colloid Interface Sci 2024; 675:411-418. [PMID: 38976967 DOI: 10.1016/j.jcis.2024.06.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/06/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024]
Abstract
Developing highly efficient single-atom catalysts (SACs) for the nitrogen reduction reaction (NRR) to ammonia production has garnered significant attention in the scientific community. However, achieving high activity and selectivity remains challenging due to the lack of innate activity in most existing catalysts or insufficient active site density. This study delves into the potential of M2C12 materials (M = Cr, Ir, Mn, Mo, Os, Re, Rh, Ru, W, Fe, Cu, and Ti) with high transition metal coverage as SACs for NRR using first-principles calculations. Among these materials, Os2C12 exhibited superior catalytic activity for NRR, with a low overpotential of 0.39 V and an Os coverage of up to 72.53 wt%. To further boost its catalytic activity, a nonmetal (NM) atom doping (NM = B, N, O, and S) and C vacancy modification were explored in Os2C12. It is found that the introduction of O enables exceptional catalytic activity, selectivity, and stability, with an even lower overpotential of 0.07 V. Incorporating the O atom disrupted the charge balance of its coordinating C atoms, effectively increasing the positive charge density of the Os-d-orbit-related electronic structure. This promoted strong d-π* coupling between Os and N2H, enhancing N2H adsorption and facilitating NRR processes. This comprehensive study provides valuable insights into NRR catalyst design for sustainable ammonia production and offers a reference for exploring alternative materials in other catalytic reactions.
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Affiliation(s)
- Shu-Long Li
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 611700, China; Western Superconducting Technologies Co, Ltd., Xi'an 710018, China
| | - Yutao Chen
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Guo Tian
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Liangzhi Kou
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Queensland 4001, Australia
| | - Liang Qiao
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611700, China.
| | - Yong Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China; College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.
| | - Li-Yong Gan
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China.
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123
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Jiang L, Tian Y, Zhang H, Liu S. Molecular-level insight into the effects of low moisture and trehalose on the thermostability of β-glucosidase. Food Chem 2024; 460:140607. [PMID: 39068804 DOI: 10.1016/j.foodchem.2024.140607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 07/12/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
The high temperature induces conformational changes in β-glucosidase, making it inactive and limiting its application field. In this paper, the effect of trehalose on the thermostability of β-glucosidase from low-moisture Hevea brasiliensis seeds was investigated. The results showed that the residual enzyme activities of β-glucosidase supplemented with trehalose after high-temperature treatment were significantly higher than that of the control group. The improvement of thermostability could be explained by low-field nuclear magnetic resonance (LF-NMR) and molecular dynamics (MD) simulations at the molecular level. Moreover, adding trehalose increased the water activity and water content of β-glucosidase, leading to a more stable conformation. Trehalose replaced some water and formed a stable network of hydrogen bonds with protein and surrounding water. The glass formed by trehalose also reduced molecular movement, thus providing good protection for enzymes.
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Affiliation(s)
- Lian Jiang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Engineering Research Center of Utilization of Tropical Polysaccharide Resources, the Ministry of Education, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
| | - Yongli Tian
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Engineering Research Center of Utilization of Tropical Polysaccharide Resources, the Ministry of Education, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
| | - Haide Zhang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Engineering Research Center of Utilization of Tropical Polysaccharide Resources, the Ministry of Education, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China
| | - Shisheng Liu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Engineering Research Center of Utilization of Tropical Polysaccharide Resources, the Ministry of Education, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China.
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124
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Zhang S, Pei J, Zhao Y, Yu X, Yang L. Cascade internal electric field dominated carbon nitride decorated with gold nanoparticles as SERS substrate for thiram assay. Talanta 2024; 280:126762. [PMID: 39217710 DOI: 10.1016/j.talanta.2024.126762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 08/10/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
The development of valid chemical enhancement strategy with charge transfer (CT) for semiconductors has great scientific significance in surface-enhanced Raman scattering (SERS) technology. Herein, a phosphorus doped crystalline/amorphous polymeric carbon nitride (PCPCN) is fabricated by a facile molten salt method, and is employed as a SERS substrate for the first time. Upon the synergies of phosphatization and molten salt etching, PCPCN owns a cascaded internal electric field (IEF) due to the formation of p-n homojunction (interface-IEF) and crystalline/amorphous homojunction (bulk-IEF). The interface-IEF and bulk-IEF could effectively suppress the recombination of charge carriers and promote electron transfer between PCPCN and target methylene blue (MB), respectively. The strong CT interaction endows PCPCN substrate with superior SERS activity with an enhancement factor (EF) of 5.53 × 105. Au nanoparticles (Au NPs) are subsequently decorated on PCPCN to introduce electromagnetic enhancement for a better SERS response. The Au/PCPCN substrate allows to reliably detect trace crystal violet, as well as the thiram residue on cherry tomato. This work offers an integrated solution to enhance CT efficiency based on collaborative homojunction and internal electric field, and may inspire the design of novel semiconductor-based SERS substrates.
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Affiliation(s)
- Shuting Zhang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jingxuan Pei
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yanfang Zhao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China; Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Jinan, 250014, China
| | - Xiang Yu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Lei Yang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China
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125
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Šketa B, Galman JL, Turner NJ, Žnidaršič-Plazl P. Immobilization of His 6-tagged amine transaminases in microreactors using functionalized nonwoven nanofiber membranes. N Biotechnol 2024; 83:46-55. [PMID: 38960020 DOI: 10.1016/j.nbt.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/14/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024]
Abstract
Process intensification is crucial for industrial implementation of biocatalysis and can be achieved by continuous process operation in miniaturized reactors with efficiently immobilized biocatalysts, enabling their long-term use. Due to their extremely large surface-to-volume ratio, nanomaterials are promising supports for enzyme immobilization. In this work, different functionalized nanofibrous nonwoven membranes were embedded in a two-plate microreactor to enable immobilization of hexahistidine (His6)-tagged amine transaminases (ATAs) in flow. A membrane coated with Cu2+ ions gave the best results regarding His6-tagged ATAs immobilization among the membranes tested yielding an immobilization yield of up to 95.3 % for the purified N-His6-ATA-wt enzyme. Moreover, an efficient one-step enzyme immobilization process from overproduced enzyme in Escherichia coli cell lysate was developed and yielded enzyme loads up to 1088 U mL-1. High enzyme loads resulted in up to 80 % yields of acetophenone produced from 40 mM (S)-α-methylbenzylamine in less than 4 min using a continuously operated microreactor. Up to 81 % of the initial activity was maintained in a 5-day continuous microreactor operation with immobilized His6-tagged ATA constructs. The highest turnover number within the indicated time was 7.23·106, which indicates that this immobilization approach using advanced material and reactor system is highly relevant for industrial implementation.
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Affiliation(s)
- Borut Šketa
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia; Chair of Micro Process Engineering and Technology - COMPETE, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - James L Galman
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Nicholas J Turner
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, United Kingdom
| | - Polona Žnidaršič-Plazl
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia; Chair of Micro Process Engineering and Technology - COMPETE, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia.
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126
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Purwani NN, Rozeboom HJ, Willers VP, Wijma HJ, Fraaije MW. Discovery of a new class of bacterial heme-containing CC cleaving oxygenases. N Biotechnol 2024; 83:82-90. [PMID: 39053683 DOI: 10.1016/j.nbt.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 07/11/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Previously, some bacteria were shown to harbour enzymes capable of catalysing the oxidative cleavage of the double bond of t-anethole and related compounds. The cofactor dependence of these enzymes remained enigmatic due to a lack of biochemical information. We report on catalytic and structural details of a representative of this group of oxidative enzymes: t-anethole oxygenase from Stenotrophomonas maltophilia (TAOSm). The bacterial enzyme could be recombinantly expressed and purified, enabling a detailed biochemical study that has settled the dispute on its cofactor dependence. We have established that TAOSm contains a tightly bound b-type heme and merely depends on dioxygen for catalysis. It was found to accept t-anethole, isoeugenol and O-methyl isoeugenol as substrates, all being converted into the corresponding aromatic aldehydes without the need of any cofactor regeneration. The elucidated crystal structure of TAOSm has revealed that it contains a unique active site architecture that is conserved for this distinct class of heme-containing bacterial oxygenases. Similar to other hemoproteins, TAOSm has a histidine (His121) as proximal ligand. Yet, unique for TAOs, an arginine (Arg89) is located at the distal axial position. Site directed mutagenesis confirmed crucial roles for these heme-liganding residues and other residues that form the substrate binding pocket. In conclusion, the results reported here reveal a new class of bacterial heme-containing oxygenases that can be used for the cleavage of alkene double bonds, analogous to ozonolysis in organic chemistry.
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Affiliation(s)
- Ni Nyoman Purwani
- Molecular Enzymology, University of Groningen, Nijenborgh 4, Groningen 9747AG, the Netherlands; Department of Health, Faculty of Vocational Studies, Kampus B Universitas Airlangga, Surabaya, East Java 60286, Indonesia
| | - Henriette J Rozeboom
- Molecular Enzymology, University of Groningen, Nijenborgh 4, Groningen 9747AG, the Netherlands
| | - Vivian P Willers
- Molecular Enzymology, University of Groningen, Nijenborgh 4, Groningen 9747AG, the Netherlands
| | - Hein J Wijma
- Molecular Enzymology, University of Groningen, Nijenborgh 4, Groningen 9747AG, the Netherlands
| | - Marco W Fraaije
- Molecular Enzymology, University of Groningen, Nijenborgh 4, Groningen 9747AG, the Netherlands.
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Muñiz-Mouro A, Gullón B, Eibes G. Exploiting UPO versatility to transform rutin in more soluble and bioactive products. N Biotechnol 2024; 83:197-204. [PMID: 39181196 DOI: 10.1016/j.nbt.2024.08.504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 08/09/2024] [Accepted: 08/20/2024] [Indexed: 08/27/2024]
Abstract
The discovery of unspecific peroxygenases (UPOs) completely changed the paradigm of enzyme-based oxyfunctionalization reactions, as these enzymes can transform a wide variety of substrates with a relatively simple reaction mechanism. The fact that UPO can exert both peroxygenative and peroxidative activity in either aromatic or aliphatic carbons, represents a great potential in the production of high value-added products from natural antioxidants. In this work, the flavonoid rutin has been considered as possible substrate for UPO from Agrocybe aegerita, and its peroxygenation or its peroxidation and successive oligomerization have been studied. Different experiments were performed in order to reduce the range of process variables involved and gaining insight on the behavior of this enzyme, leading to a multivariable optimization of UPO-based rutin modification. While trying to preserve enzyme activity this optimization aimed for maximizing the production of more soluble antioxidants. Reusability of the enzyme was evaluated recovering UPO using an enzymatic membrane reactor, revealing challenges in enzyme stability due to inactivation during the filtration stages. The influence of the radical scavenger ascorbic acid on product formation was investigated, revealing its role in directing the reaction towards hydroxylated rutin derivatives, hence indicating a shift towards more soluble and bioactive products.
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Affiliation(s)
- Abel Muñiz-Mouro
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain
| | - Beatriz Gullón
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, Ourense 32004, Spain
| | - Gemma Eibes
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Galicia, Spain.
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128
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Pan J, Chen N, Cai Q, Pan B. High N 2-selectivity of nitrite reduction by palladium-laden nanocomposite with self-sufficient electron donators. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 953:176126. [PMID: 39250972 DOI: 10.1016/j.scitotenv.2024.176126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/12/2024] [Accepted: 09/06/2024] [Indexed: 09/11/2024]
Abstract
Selectively reducing nitrite to gaseous nitrogen (N2) with an effective and recyclable fashion stands as an attractive alternative for treating the relevant wastewater. Herein, a Pd-based nanocomposite (Pd@EDA-CMPS) was subtly assembled by encapsulating Pd(0) nanoparticles into a porous polystyrene carrier, which was aforehand functionalized with ethylenediamine (EDA) as the endogenous electron donator. Systematical macroscopic experiments confirm that the pre-grafted EDA groups can substantially stimulate the catalytic activity of the laden Pd(0) nanoparticles with high removal efficiency and N2 selectivity of Pd@EDA-CMPS toward nitrite; specifically, high N2 selectivity (86%) was achieved by Pd@EDA-CMPS with an excellent anti-interference ability against competing anion and a broad pH-range applicability (4-11), whereas no N2 production was detected for its counterparts (CMPS, EDA-CMPS, and Pd@CMPS). Spectroscopic analyses reveal that the grafted EDA groups played a decisive role in the formation of H-loaded Pd(0) nanoparticles inside the porous substrate, which joint with the unique pH-buffering ability of EDA drove the reaction to the production of nitrogen (N2) rather than ammonia (NH3). The exhausted Pd@EDA-CMPS can be promisingly regenerated by NaOH (eluting) and NaBH4 (restoring) solution without obvious loss in treatment capacity and N2 selectivity. This work provides a feasible strategy for catalytically reducing nitrite into N2 without the provision of exogenous reductor such as hydrogen.
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Affiliation(s)
- Junyin Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Ningyi Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Qingrui Cai
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Bingjun Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
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129
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Tang H, Bian Z, Zhang L, Ma B, Wang H. Controlled electrocatalysis of the dechlorination and detoxification of chlorinated ethylenes to avoid production of highly toxic intermediates. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175959. [PMID: 39222814 DOI: 10.1016/j.scitotenv.2024.175959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 08/21/2024] [Accepted: 08/30/2024] [Indexed: 09/04/2024]
Abstract
In this study, electrochemical dechlorination and detoxification of a mixture of chlorinated ethylenes was investigated under various conditions using a double monoatomic synergistic metal catalytic cathode. Electrocatalytic degradation of mixed chlorinated with stepwise voltage and alternating current exhibited excellent dechlorination efficiency. The removal ratios of 1,2-dichloroethylene (1,2-DCE), trichloroethylene (TCE), and tetrachloroethylene (PCE) reached 78.79 %, 79.27 %, and 93.44 % in 10 min, and 98.14 %, 97.56 %, and 98.70 % in 30 min, respectively. The toxicity was evaluated using a quantitative structure-activity relationship model. The cumulative toxicity was reduced to 8.00 % of the initial cumulative toxicity in 30 min. An electrochemical dechlorination strategy for selective degradation and detoxification of mixtures of chlorinated pollutants is proposed. Controlled dechlorination and detoxification under low-voltage control avoided the accumulation of toxic intermediates. Cumulative toxicity was reduced by strategies of selective dechlorination, and segmented and alternating current decreased the energy consumption. The strategy provides a basis for alternating current electrocatalytic dechlorination associated with mixed chlorinated pollutants treatment.
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Affiliation(s)
- Hanyu Tang
- College of Water Sciences, Beijing Normal University, Beijing 100875, PR China; State Environmental Protection Key Laboratory of Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement, Beijing 100029, PR China; Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education of China, Beijing Normal University, Beijing 100875, PR China
| | - Zhaoyong Bian
- College of Water Sciences, Beijing Normal University, Beijing 100875, PR China.
| | - Lifei Zhang
- State Environmental Protection Key Laboratory of Dioxin Pollution Control, National Research Center for Environmental Analysis and Measurement, Beijing 100029, PR China
| | - Bei Ma
- College of Water Sciences, Beijing Normal University, Beijing 100875, PR China
| | - Hui Wang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, PR China.
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130
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Zhao Z, Zhou Z, Zhang X, Hou C, Wu D. Overlooked pyrite-mediated heterogeneous Fenton processes: Mechanisms of surface hydroxyl radical generation and associated decontamination performance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175833. [PMID: 39214359 DOI: 10.1016/j.scitotenv.2024.175833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/25/2024] [Accepted: 08/25/2024] [Indexed: 09/04/2024]
Abstract
Pyrite-based Fenton-like processes have been extensively studied for wastewater decontamination; however, most relevant studies placed excessive emphasis on the homogeneous Fenton reaction mediated by aqueous Fe2+, resulting in the proposed technologies facing issues such as additional acid requirements for pH adjustment and excessive iron sludge production. Herein, through in situ shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), custom dual-chamber reactor experiments, and a series of control experiments, significant hydroxyl radical generation was identified during the pyrite/H2O2 process, while the dominant reactive iron species was verified to the structural Fe sites on the pyrite surface, rather than structural Fe(II) in secondary iron minerals and surface adsorbed Fe2+. Consequently, even with significant suppression of the homogeneous Fenton pathway, the pyrite/H2O2 process exhibited significant degradation efficiency for sulfamethoxazole (SMX) at pH 4. Moreover, the pyrite/H2O2 process was found to selectively remove 50 μM of pollutants with high affinity for pyrite (bisphenol A, carbamazepine, nitrobenzene, and SMX), even in the presence of 50-100 mM methanol. Compared to the typical iron-based reductive catalyst (zero-valent iron, ZVI), pyrite mediated a Fenton process with greater potential for practical applications at pH 4, achieving a 43.75-fold reduction in iron sludge production and almost doubling the H2O2 utilization efficiency. Additionally, in contrast to ZVI, minimal iron oxide formed on the pyrite surface during the oxidation process. Thus, after seven cycles of degradation experiments, the decontamination efficiency of the pyrite/H2O2 process remained stable. These findings are crucial for understanding the complex environmental behavior of pyrite in both natural and engineering processes and provide a new perspective for the efficient utilization of pyrite resources as well.
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Affiliation(s)
- Zhenyu Zhao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, PR China
| | - Zhengwei Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, PR China
| | - Xiaomeng Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, PR China
| | - Chengsi Hou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, PR China
| | - Deli Wu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Urban Water Supply, Water Saving and Water Environment Governance in the Yangtze River Delta of Ministry of Water Resources, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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131
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Ji W, Osbourn A, Liu Z. Understanding metabolic diversification in plants: branchpoints in the evolution of specialized metabolism. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230359. [PMID: 39343032 PMCID: PMC11439499 DOI: 10.1098/rstb.2023.0359] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/30/2024] [Accepted: 06/19/2024] [Indexed: 10/01/2024] Open
Abstract
Plants are chemical engineers par excellence. Collectively they make a vast array of structurally diverse specialized metabolites. The raw materials for building new pathways (genes encoding biosynthetic enzymes) are commonly recruited directly or indirectly from primary metabolism. Little is known about how new metabolic pathways and networks evolve in plants, or what key nodes contribute to branches that lead to the biosynthesis of diverse chemicals. Here we review the molecular mechanisms underlying the generation of biosynthetic branchpoints. We also consider examples in which new metabolites are formed through the joining of precursor molecules arising from different biosynthetic routes, a scenario that greatly increases both the diversity and complexity of specialized metabolism. Given the emerging importance of metabolic gene clustering in helping to identify new enzymes and pathways, we further cover the significance of biosynthetic gene clusters in relation to metabolic networks and dedicated biosynthetic pathways. In conclusion, an improved understanding of the branchpoints between metabolic pathways will be key in order to be able to predict and illustrate the complex structure of metabolic networks and to better understand the plasticity of plant metabolism. This article is part of the theme issue 'The evolution of plant metabolism'.
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Affiliation(s)
- Wenjuan Ji
- Joint Center for Single Cell Biology; Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai200240, People’s Republic of China
| | - Anne Osbourn
- Department of Biochemistry and Metabolism, John Innes Centre, NorwichNR4 7UH, UK
| | - Zhenhua Liu
- Joint Center for Single Cell Biology; Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai200240, People’s Republic of China
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132
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Liu X, Pan Y, Wang X. Evaluation on photocatalytic activity of bismuth nitrate derived materials at different calcination temperatures using paper microzones method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124763. [PMID: 38963944 DOI: 10.1016/j.saa.2024.124763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/27/2024] [Accepted: 06/30/2024] [Indexed: 07/06/2024]
Abstract
Our work reveals for the first time that directly calcined bismuth nitrate derivatives (BNDs) possess significant photocatalytic activity towards rhodamine B (RhB). As the calcination temperature increased, the Bi(NO3)3·5H2O powder gradually ruptured and transformed into different bismuth nitrate products and their mixtures, finally into stable α-Bi2O3 at 500 °C. Among them, BNDs-100 could achieve 100 % photocatalytic degradation of 10 mg/L RhB solution under UV irradiation for 6 min. The ImageJ-led paper microzones (PMZs) method is introduced for the first time into the performance evaluation process of photocatalysts, which can achieve the green chemistry pathway and the rapid evaluation of different catalysts. The accuracy of the results of the PMZs method relative to the spectrophotometric method was up to 91.14 %, which has a better reliability and is suitable for qualitative analysis, and a certain ability when used for quantitative analysis. The results showed that the PMZs method was used to assess the photocatalytic degradation of rhodamine B by bismuth nitrate-derived materials at different calcination temperatures with well reliability, and the preparation of BNDs by direct calcination was a simple and effective strategy.
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Affiliation(s)
- Xian Liu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; Hubei Provincial Engineering Research Center of Urban Regeneration, Wuhan 430065, China.
| | - Yu Pan
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Xun Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
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133
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V N D, Sen S, Chattopadhyaya M. Comparative study of the photocatalytic activity of g-C 3N 4/MN 4 (M = Mn, Fe, Co) for water splitting reaction: A theoretical study. J Comput Chem 2024; 45:2518-2529. [PMID: 38970347 DOI: 10.1002/jcc.27464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/12/2024] [Accepted: 06/27/2024] [Indexed: 07/08/2024]
Abstract
In this study, nanocomposites of g-C3N4/MN4 (where M is Mn, Fe and Co) have been designed using advanced density functional theory (DFT) calculations. A comprehensive analysis was conducted on the geometry, electronic, optical properties, work function, charge transfer interaction and adhesion energy of the g-C3N4/MN4 heterostructures and concluded that g-C3N4/FeN4 and g-C3N4/CoN4 heterojunctions exhibit higher photocatalytic performance than individual units. The better photocatalytic activity can be attributed mainly by two facts; (i) the visible light absorption of both g-C3N4/FeN4 and g-C3N4/CoN4 interfaces are higher compared to its isolated analogs and (ii) a significant enhancement of band gap energy in g-C3N4/FeN4 and g-C3N4/CoN4 heterostructures limited the electron-hole recombination significantly. The potential of the g-C3N4/MN4 heterojunctions as a photocatalyst for the water splitting reaction was assessed by examining its band alignment for water splitting reaction. Importantly, while the electronic and magnetic properties of MN4 systems were studied, this is the first example of inclusion of MN4 on graphene-based material (g-C3N4) for studying the photocatalytic activity. The state of the art DFT calculations emphasis that g-C3N4/FeN4 and g-C3N4/CoN4 heterojunctions are half metallic photocatalysts, which is limited till date.
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Affiliation(s)
- Dhilshada V N
- Department of Chemistry, National Institute of Technology, Calicut, India
| | - Sabyasachi Sen
- Department of Physics, Shyampur Siddheswari Mahavidyalaya, Nadia, India
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134
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Clark KM, Nekoba DT, Viernes KL, Zhou J, Ray TR. Fabrication of high-resolution, flexible, laser-induced graphene sensors via stencil masking. Biosens Bioelectron 2024; 264:116649. [PMID: 39137522 PMCID: PMC11368413 DOI: 10.1016/j.bios.2024.116649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 07/19/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
The advent of wearable sensing platforms capable of continuously monitoring physiological parameters indicative of health status have resulted in a paradigm shift for clinical medicine. The accessibility and adaptability of such portable, unobtrusive devices enables proactive, personalized care based on real-time physiological insights. While wearable sensing platforms exhibit powerful capabilities for continuously monitoring physiological parameters, device fabrication often requires specialized facilities and technical expertise, restricting deployment opportunities and innovation potential. The recent emergence of rapid prototyping approaches to sensor fabrication, such as laser-induced graphene (LIG), provides a pathway for circumventing these barriers through low-cost, scalable fabrication. However, inherent limitations in laser processing restrict the spatial resolution of LIG-based flexible electronic devices to the minimum laser spot size. For a CO2 laser-a commonly reported laser for device production-this corresponds to a feature size of ∼120 μm. Here, we demonstrate a facile, low-cost stencil-masking technique to reduce the minimum resolvable feature size of a LIG-based device from 120 ± 20 μm to 45 ± 3 μm when fabricated by CO2 laser. Characterization of device performance reveals this stencil-masked LIG (s-LIG) method yields a concomitant improvement in electrical properties, which we hypothesize is the result of changes in macrostructure of the patterned LIG. We showcase the performance of this fabrication method via production of common sensors including temperature and multi-electrode electrochemical sensors. We fabricate fine-line microarray electrodes not typically achievable via native CO2 laser processing, demonstrating the potential of the expanded design capabilities. Comparing microarray sensors made with and without the stencil to traditional macro LIG electrodes reveals the s-LIG sensors have significantly reduced capacitance for similar electroactive surface areas. Beyond improving sensor performance, the increased resolution enabled by this metal stencil technique expands capabilities for scalable fabrication of high-performance wearable sensors in low-resource settings without reliance on traditional fabrication pathways.
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Affiliation(s)
- Kaylee M Clark
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA
| | - Deylen T Nekoba
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA
| | - Kian Laʻi Viernes
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA
| | - Jie Zhou
- Department of Electrical Engineering, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA
| | - Tyler R Ray
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Honolulu, HI, 96822, USA; Department of Cell and Molecular Biology, John. A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI, 96813, USA.
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135
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Khairy GM, Ragab SM, Moawed EA, El Sadda RR, Aboelnga MM. Uncovering an effecient binary system as a chemosensor for visual and fluorescence detection of chromium (VI) in water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124729. [PMID: 38955073 DOI: 10.1016/j.saa.2024.124729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/02/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024]
Abstract
There is an urgent requirement for the development of sensitive and quick sensors to monitor chromium (VI) due to its substantial carcinogenic and mutagenic properties. A coexisting system of coumarin 334 and diphenylcarbazide (C334/DPC) was used in this study as a fluorescent chemosensor to detect Cr(VI) ions. Upon the addition of Cr(VI), a purple chelate complex (Cr(III)-diphenylcarbazone) was produced, which resulted from the quantitative reaction between Cr(VI) ions and diphenylcarbazide (DPC), whereas no interaction between Cr(VI) and coumarin 334 took place. More interestingly, the absorption spectra of purple (Cr(III)-diphenylcarbazone) complex (λmax = 540 nm) were overlapped with emission and excitation spectra of coumarin 334 (λex/em = 453/492), resulting in the efficient quenching of coumarin 334 (C334) via the inner filter effect. Furthermore, the semi-quantitative estimation of Cr(VI) ion concentration may be achieved by visually watching the progressive color transformation of the probe from yellow to red after the addition different concentration of Cr(VI). The calibration plot for determination of Cr(VI) by this method is ranging from 0.048 to 268 μM. DFT calculations were conducted to enrich our understanding about the mechanism of action. This approach demonstrates an excellent selectivity and sensitivity for Cr(VI) including a detection limit of 48 nM. The new sensor was successfully applied to water samples (tap, mineral, and waste waters). The accuracy was confirmed by the atomic absorption spectroscopy.
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Affiliation(s)
- Gasser M Khairy
- Chemistry Department, Faculty of Science, Suez Canal University, 41522 Ismailia, Egypt.
| | - Sara M Ragab
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Elhossein A Moawed
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Rana R El Sadda
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
| | - Mohamed M Aboelnga
- Chemistry Department, Faculty of Science, Damietta University, 34511 Damietta, Egypt.
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136
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Khan R, Shukla S, Kumar M, Barceló D, Zuorro A, Bhargava PC. Progress and obstacles in employing carbon quantum dots for sustainable wastewater treatment. ENVIRONMENTAL RESEARCH 2024; 261:119671. [PMID: 39048068 DOI: 10.1016/j.envres.2024.119671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/15/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
We explored the potential of carbon quantum dots (CQDs) as novel materials for wastewater treatment and their role towards environmental sustainability. The advantages of CQDs over other carbon-based materials, when synthesized using the same precursor material and for the same contaminant are discussed, enabling future researchers to choose the appropriate material. CQDs have demonstrated exceptional adaptability in various wastewater treatment, acting as efficient adsorbents for contaminants, exhibiting excellent photocatalytic properties for degradation of organic pollutants, and functioning as highly sensitive sensors for water quality monitoring. We found that bottom-up approach has better control over particle size (resulting CQDs: 1-4 nm), whereas top-down synthesis approach (resulting CQDs: 2-10 nm) have more potential for large scale applications and tunability. Transmission electron microscopy (TEM) remains the most expensive characterization technique, which provides the best resolution of the CQD's surface. The study emphasizes on the environmental impact and safety considerations pertaining to CQDs by emphasizing the need for thorough toxicity evaluation, and necessary environmental precautions. The study also identifies the lacunae pertaining to critical challenges in practical implementation of CQDs, such as scalability, competition of co-existing contaminants, and stability. Finally, future research directions are proposed, advocating green synthesis approaches, tailored surface functionalization, and, lowering the overall cost for analysis, synthesis and application of CQDs.
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Affiliation(s)
- Ramsha Khan
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
| | - Saurabh Shukla
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
| | - Manish Kumar
- Sustainability Cluster, School of Engineering University of Petroleum and Energy Studies Dehradun, Uttarakhand, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey, 64849, Nuevo Leon, Mexico.
| | - Damià Barceló
- Sustainability Cluster, School of Engineering University of Petroleum and Energy Studies Dehradun, Uttarakhand, India; Chemistry and Physics Department, University of Almeria, Ctra Sacramento s/n, 04120, Almería, Spain.
| | - Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University, Via Eudossiana 18, Rome, 00184, Italy.
| | - Preeti Chaturvedi Bhargava
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, 226001, Uttar Pradesh, India.
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137
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Cazier EA, Pham TN, Cossus L, Abla M, Ilc T, Lawrence P. Exploring industrial lignocellulosic waste: Sources, types, and potential as high-value molecules. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 188:11-38. [PMID: 39094219 DOI: 10.1016/j.wasman.2024.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024]
Abstract
Lignocellulosic biomass has a promising role in a circular bioeconomy and may be used to produce valuable molecules for green chemistry. Lignocellulosic biomass, such as food waste, agricultural waste, wood, paper or cardboard, corresponded to 15.7% of all waste produced in Europe in 2020, and has a high potential as a secondary raw material for industrial processes. This review first presents industrial lignocellulosic waste sources, in terms of their composition, quantities and types of lignocellulosic residues. Secondly, the possible high added-value chemicals obtained from transformation of lignocellulosic waste are detailed, as well as their potential for applications in the food industry, biomedical, energy or chemistry sectors, including as sources of polyphenols, enzymes, bioplastic precursors or biofuels. In a third part, various available transformation treatments, such as physical treatments with ultrasound or heat, chemical treatments with acids or bases, and biological treatments with enzymes or microorganisms, are presented. The last part discusses the perspectives of the use of lignocellulosic waste and the fact that decreasing the cost of transformation is one of the major issues for improving the use of lignocellulosic biomass in a circular economy and green chemistry approach, since it is currently often more expensive than petroleum-based counterparts.
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Affiliation(s)
- Elisabeth A Cazier
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France; Nantes Université, Oniris, GEPEA, UMR 6144, F-44600 Saint-Nazaire, France(1).
| | - Thanh-Nhat Pham
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France
| | - Louis Cossus
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France
| | - Maher Abla
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
| | - Tina Ilc
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
| | - Philip Lawrence
- UCLy (Lyon Catholic University), ESTBB, Lyon, France; UCLy (Lyon Catholic University), UR CONFLUENCE : Sciences et Humanités (EA 1598), Lyon, France.
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138
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Shabelko AR, Derevyanko NA, Ishchenko AA, Yu Tananaiko O. Indopolycarbocyanine dyes as perspective analytical reagents for spectrophotometric determination of nitrite by radical nitration. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124728. [PMID: 38955070 DOI: 10.1016/j.saa.2024.124728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/31/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024]
Abstract
A spectrophotometric method for the quantitative determination of nitrite was developed, based on the radical nitration of indopolycarbocyanine dyes in the presence of 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO). The rate of the reaction of the studied dyes with nitrite increases with the lengthening of the polymethine chain and the presence of hydrophilic sulfo groups in the side chain of the dye. TEMPO acts as a co-reagent, significantly accelerating the reaction rate and increasing the sensitivity of nitrite determination. The proposed reaction mechanism is supported by spectrophotometric and HPLC/MS studies. For Ind2 (tetramethine indocarbocyanine cationic dye), the limit of detection for nitrite is 0.50 µM within a linearity range of 1-13 µM. The developed method is sensitive, with a LOD 130 times lower than the maximum contaminant level (MCL) of nitrite in drinking water (65 μM), as specified by the WHO. The method is of low-toxicity and good selectivity, as the determination of nitrite is not significantly affected by the main components of water. The method was successfully applied for the analysis of nitrite in natural and bottled water.
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Affiliation(s)
- Andrii R Shabelko
- Taras Shevchenko National University of Kyiv 01601, Kyiv, Str. Volodymyrska, 64/13, Ukraine
| | - Nadiya A Derevyanko
- Institute of Organic Chemistry of the NAS of Ukraine, 02660 Kyiv, Str. Akademika Kuharya,5, Ukraine
| | - Alexander A Ishchenko
- Institute of Organic Chemistry of the NAS of Ukraine, 02660 Kyiv, Str. Akademika Kuharya,5, Ukraine
| | - Oksana Yu Tananaiko
- Taras Shevchenko National University of Kyiv 01601, Kyiv, Str. Volodymyrska, 64/13, Ukraine.
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139
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Kong Y, Takaya Y, Córdova-Udaeta M, Tokoro C. A comprehensive approach for the recycling of anode materials from spent lithium-ion batteries: Separation, lithium recovery, and graphite reutilization as environmental catalyst. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 188:60-71. [PMID: 39116657 DOI: 10.1016/j.wasman.2024.07.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 07/02/2024] [Accepted: 07/29/2024] [Indexed: 08/10/2024]
Abstract
The effective recovery of valuables from anodes coming from spent lithium-ion batteries (LIBs) is of great importance to ensure resource supply and reduce the environmental burden for recycling. In this work, a simple and low energy consumption roasting method was proposed by employing low-temperature eutectic NaOH-KOH as reaction medium, in order to simultaneously separate graphite from Cu foils, extract lithium from it and set it up for reuse as environmental catalyst through one-step water washing process. Our results show that polyvinylidene difluoride (PVDF) was effectively deactivated due to dehydrofluorination/carbonization at a relatively low temperature and short time (150 °C, 20 min) when a mass ratio of 1:1 for eutectic NaOH-KOH to spent LIBs anodes was used, yielding 97.3 % of graphite detached. Moreover, a remarkable lithium extraction efficiency of 93.2 % was simultaneously obtained. Afterwards, the reusability of the recycled graphite was tested by employing it as a catalyst for the treatment of a contaminant organic dye (Rhodamine B) in the presence of NaClO. Our results show that a superior NaClO activation was obtained with the addition of recycled graphite, being this fact closely associated to the abundant active sites formed during the long-term charging/discharging cycles in the original battery. The alkaline-mediated roasting process presented in this work presents an energy-saving scheme to efficiently recover useful components from spent anodes, whereas the reusability example highlighted a useful option for repurposing the severely damaged graphite as an environmental catalyst rather than disposing it in landfills, turning waste into a valuable material.
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Affiliation(s)
- Yanhui Kong
- Graduate School of Creative Science and Engineering, Waseda University, Okubo 3-4-1, Shinju-ku, Tokyo 169-8555, Japan
| | - Yutaro Takaya
- Faculty of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan; Faculty of Science and Engineering, Waseda University, Okubo 3-4-1, Shinju-ku, Tokyo 169-8555, Japan
| | - Mauricio Córdova-Udaeta
- Research Institute for Science and Engineering, Waseda University, Okubo 3-4-1, Shinju-ku, Tokyo 169-8555, Japan
| | - Chiharu Tokoro
- Faculty of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan; Faculty of Science and Engineering, Waseda University, Okubo 3-4-1, Shinju-ku, Tokyo 169-8555, Japan.
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140
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Bhoite A, Gaur NK, Palange M, Kontham R, Gupta V, Kulkarni K. Structure of epoxide hydrolase 2 from Mangifera indica throws light on the substrate specificity determinants of plant epoxide hydrolases. Biochem Biophys Res Commun 2024; 733:150444. [PMID: 39067247 DOI: 10.1016/j.bbrc.2024.150444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/11/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
Epoxide hydrolases (EHs) are a group of ubiquitous enzymes that catalyze hydrolysis of chemically reactive epoxides to yield corresponding dihydrodiols. Despite extensive studies on EHs from different clades, generic rules governing their substrate specificity determinants have remained elusive. Here, we present structural, biochemical and molecular dynamics simulation studies on MiEH2, a plant epoxide hydrolase from Mangifera indica. Comparative structure-function analysis of nine homologs of MiEH2, which include a few AlphaFold structural models, show that the two conserved tyrosines (MiEH2Y152 and MiEH2Y232) from the lid domain dissect substrate binding tunnel into two halves, forming substrate-binding-pocket one (BP1) and two (BP2). This compartmentalization offers diverse binding modes to their substrates, as exemplified by the binding of smaller aromatic substrates, such as styrene oxide (SO). Docking and molecular dynamics simulations reveal that the linear epoxy fatty acid substrates predominantly occupy BP1, while the aromatic substrates can bind to either BP1 or BP2. Furthermore, SO preferentially binds to BP2, by stacking against catalytically important histidine (MiEH2H297) with the conserved lid tyrosines engaging its epoxide oxygen. Residue (MiEH2L263) next to the catalytic aspartate (MiEH2D262) modulates substrate binding modes. Thus, the divergent binding modes correlate with the differential affinities of the EHs for their substrates. Furthermore, long-range dynamical coupling between the lid and core domains critically influences substrate enantioselectivity in plant EHs.
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Affiliation(s)
- Ashwini Bhoite
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Neeraj K Gaur
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Megha Palange
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Ravindar Kontham
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Vidya Gupta
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Kiran Kulkarni
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune- 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India.
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141
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Li X, Li Y, Yang S. Enhanced mineralization of nitrophenols by a novel C@ZVAl-PS based sequential reduction-oxidation process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175288. [PMID: 39111419 DOI: 10.1016/j.scitotenv.2024.175288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/03/2024] [Accepted: 08/02/2024] [Indexed: 08/11/2024]
Abstract
Widely employed nitrophenols (NPs) are refractory and antioxidant due to their strong electron-withdrawing group (-NO2). Actually, NPs are readily reduced to aminophenols (APs). However, APs remain toxic and necessitate further treatment. Herein, we utilized a novel sequential reduction-oxidation system of carbon-modified zero-valent aluminum (C@ZVAl) combined with persulfate (PS) for the thorough removal of both NPs and APs. The results demonstrated that p-nitrophenol (PNP, up to 1000 mg/L) exhibited complete reduction to p-aminophenol (PAP), and then over 98.0 % of PAP could be effectively oxidized, in the meantime the removal rate of chemical oxygen demand (COD) was as high as 95.9 %. Based on the SEM and XPS characterizations, we found that C@ZVAl has exceptionally high reactivity that generates massive electrons and reduces PNP to PAP through accelerated electron transfer. In the subsequent oxidation step, PS can be rapidly activated by C@ZVAl to generate SO4- radicals for PAP oxidization. Meanwhile, the mineralization of COD proceeds. The temporal binding of reduction and oxidation can be regulated by varying the PS dosing time. Namely, the appropriate delay in PS dosing facilitates sufficient reduction to provide enough reactants for oxidation, favoring the mineralization of PNP and COD. More crucially, dinitrodiazophenol (DDNP) in an actual explosive wastewater without any pretreatment can be effectively mineralized by this sequential reduction-oxidation system, affirming the excellent performance of this process in practical applications. In conclusion, the C@ZVAl-PS based sequential reduction-oxidation looks very promising for enhanced mineralization of nitro-substituted organic contaminants.
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Affiliation(s)
- Xin Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yang Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Shiying Yang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China.
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142
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Guo Q, Dong ZX, Luo X, Zheng LJ, Fan LH, Zheng HD. Engineering Escherichia coli for D-allulose biosynthesis from glycerol. J Biotechnol 2024; 394:103-111. [PMID: 39181208 DOI: 10.1016/j.jbiotec.2024.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 08/07/2024] [Accepted: 08/20/2024] [Indexed: 08/27/2024]
Abstract
D-allulose, a naturally occurring monosaccharide, is present in small quantities in nature. It is considered a valuable low-calorie sweetener due to its low absorption in the digestive tract and zero energy for growth. Most of the recent efforts to produce D-allulose have focused on in vitro enzyme catalysis. However, microbial fermentation is emerging as a promising alternative that offers the advantage of combining enzyme manufacturing and product synthesis within a single bioreactor. Here, a novel approach was proposed for the efficient biosynthesis of D-allulose from glycerol using metabolically engineered Escherichia coli. FbaA, Fbp, AlsE, and A6PP were used to construct the D-allulose synthesis pathway. Subsequently, PfkA, PfkB, and Pgi were disrupted to block the entry of the intermediate fructose-6-phosphate (F6P) into the Embden-Meyerhof-Parnas (EMP) and pentose phosphate (PP) pathways. Additionally, GalE and FryA were inactivated to reduce D-allulose consumption by the cells. Finally, a fed-batch fermentation process was implemented to optimize the performance of the cell factory. As a result, the titer of D-allulose reached 7.02 g/L with a maximum yield of 0.287 g/g.
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Affiliation(s)
- Qiang Guo
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China
| | - Zhen-Xing Dong
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China
| | - Xuan Luo
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China
| | - Ling-Jie Zheng
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China; Qingyuan Innovation Laboratory, Quanzhou 362801, China
| | - Li-Hai Fan
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China; Qingyuan Innovation Laboratory, Quanzhou 362801, China.
| | - Hui-Dong Zheng
- College of Chemical Engineering, Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals, Fuzhou University, Fuzhou 350108, China; Qingyuan Innovation Laboratory, Quanzhou 362801, China.
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143
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Jiang S, Sun B, Han Y, Yang C, Zhou T, Xiao K, Gong J. Low-toxicity natural pyrite on electro-Fenton catalytic reaction in a wide pH range. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175295. [PMID: 39111453 DOI: 10.1016/j.scitotenv.2024.175295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/25/2024] [Accepted: 08/03/2024] [Indexed: 08/10/2024]
Abstract
The resource utilization of natural pyrite not only reduces secondary pollution but also brings certain environmental benefits. However, the green and efficient use of pyrite presents certain challenges. In this study, a novel electro-Fenton (EF) system was constructed utilizing copper modified graphite felt (GF/Cu) as cathode and natural pyrite (com-FeS2) as catalyst. The results demonstrated that the system exhibited a remarkable stability over an extensive pH range (3.0-10.0) and remained effective even under adverse environmental conditions, such as high salinity or elevated antibiotic concentration. After optimizing the reaction conditions, 0.2 mM sulfamerazine (SMZ) was almost completely degraded within 1.5 h. The results highlighted the catalytic role of Fe(II) on the com-FeS2 surface. Combined with quenching experiments and quantitative analysis of reactive oxygen species (ROS), the removal of SMZ was primarily attributed to the generation of •OH, ordered by 1O2 > •O2- > •OHads, a possible degradation pathway was proposed by HR-LC-MS. The biological toxicity after the reaction was detected, and the introduction of polyvinylpyrrolidone (PVP) was beneficial to reduce the biological toxicity of iron dissolution. This work provides new insights into the green and efficient resource utilization of natural pyrite and significantly expands the pH applicability range of the Fenton process, demonstrating the large-scale industrial application potential of pyrite.
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Affiliation(s)
- Shan Jiang
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Benjian Sun
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yunuo Han
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Changzhu Yang
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Tao Zhou
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Keke Xiao
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, 515063 Shantou, Guangdong, China
| | - Jianyu Gong
- Hubei Key Laboratory of Multi-media Pollution Cooperative Control in Yangtze Basin, School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, China.
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144
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Pang K, Fu F, Wang H, Ding S, Fang Y, Liu X. Sustainability-inspired upcycling of plastic waste into porous carbon nanobulks for water decontamination via peroxymonosulfate activation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175242. [PMID: 39117214 DOI: 10.1016/j.scitotenv.2024.175242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 07/14/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
"White pollution" is regarded as one of the most serious problems in the natural environment. Thus greener recycling of plastic waste has attracted significant efforts in recent research. In this study, to kill two birds with one stone, a series of porous carbon nanobulks (PCNs) were synthesized from the pyrolysis of plastic waste (polyethylene terephthalate, PET) and inorganic salt (including NaHCO3, Na2CO3, NaCl, and ZnCl2) for sulfadiazine (SDZ) degradation via peroxymonosulfate (PMS) activation. PCNs-1 (co-calcinated from PET and NaHCO3) with a large number of CO and COOH active sites, which were in favor of PMS activation and electron transfer during the catalytic process, had shown the best catalytic activity for SDZ degradation. Significantly, PCNs-1 exhibited excellent universality, adaptability, and stability. The degradation pathways of SDZ were identified by the total content of organic carbon (TOC), and high-resolution mass spectrometry (HR-MS). The possible mechanism was proposed according to the anion effect, quenching experiments, electron paramagnetic resonance (EPR), and electrochemical analysis, indicating that radical (OH, SO4-, O2-) and non-radical (1O2 and e) species were the catalytically active species for SDZ decomposition in the PCNs-1/PMS system. Moreover, Ecological Structure-Activity-Relationship Model (ECOSAR) program and wheat seed cultivation experiments clearly demonstrated that the biotoxicity of SDZ could be effectively reduced by the PCNs-1/PMS system. Here we successfully upcycled plastic waste into high-value materials for efficient water decontamination.
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Affiliation(s)
- Kun Pang
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China
| | - Fangyu Fu
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China; School of Sciences, Great Bay University, Great Bay Institute for Advanced Study, Dongguan 523000, China.
| | - Haoqi Wang
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China
| | - Shun Ding
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China
| | - Yanfen Fang
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China.
| | - Xiang Liu
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, China.
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145
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Siritanaratkul B, Khan MD, Yu EH, Cowan AJ. Alkali metal cations enhance CO 2 reduction by a Co molecular complex in a bipolar membrane electrolyzer. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2024; 382:20230268. [PMID: 39307163 PMCID: PMC11449092 DOI: 10.1098/rsta.2023.0268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 10/06/2024]
Abstract
The electrochemical reduction of CO2 is a promising pathway for converting CO2 into valuable fuels and chemicals. The local environment at the cathode of CO2 electrolyzers plays a key role in determining activity and selectivity, but currently some mechanisms are still under debate. In particular, alkali metal cations have been shown to enhance the selectivity of metal catalysts, but their role remains less explored for molecular catalysts especially in high-current electrolyzers. Here, we investigated the enhancement effects of cations (Na+, K+, Cs+) on Co phthalocyanine (CoPc) in a state-of-the-art reverse-biased bipolar membrane electrolyzer. When added to the anolyte, these cations increased the Faradaic efficiency for CO, except in the case of Na+ in which the effect was transient, but the effects are convoluted with the transport process through the membrane. Alternatively, these cations can also be added directly to the cathode as chloride salts, allowing the use of a pure H2O anolyte feed, leading to sustained improved CO selectivity (61% at 100 mA cm-2 after 24 h). Our results show that cation addition is a simple yet effective strategy for improving the product selectivity of molecular electrocatalysts, opening up new avenues for tuning their local environment for CO2 reduction.This article is part of the discussion meeting issue 'Green carbon for the chemical industry of the future'.
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Affiliation(s)
- Bhavin Siritanaratkul
- Department of Chemistry, Stephenson Institute for Renewable Energy, University of Liverpool, LiverpoolL69 7ZF, UK
| | - Mohammad Danish Khan
- Department of Chemical Engineering, Loughborough University, LoughboroughLE11 3TU, UK
| | - Eileen H. Yu
- Department of Chemical Engineering, Loughborough University, LoughboroughLE11 3TU, UK
| | - Alexander J. Cowan
- Department of Chemistry, Stephenson Institute for Renewable Energy, University of Liverpool, LiverpoolL69 7ZF, UK
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146
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Mukadam Z, Scott SB, Titirici MM, Stephens IEL. An alternative to petrochemicals: biomass electrovalorization. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2024; 382:20230262. [PMID: 39307165 PMCID: PMC11448837 DOI: 10.1098/rsta.2023.0262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/31/2024] [Accepted: 08/01/2024] [Indexed: 10/06/2024]
Abstract
Replacing petrochemicals with refined waste biomass as a sustainable chemical source has become an attractive option to lower global carbon emissions. Popular methods of refining lignocellulosic waste biomass use thermochemical processes, which have significant environmental downsides. Using electrochemistry instead would overcome many of these downsides, directly driving chemical reactions with renewable electricity and revolutionizing the way many chemicals are produced today. This review mainly focuses on two furanic platform chemicals that are produced from the dehydration of cellulose, 5-hydroxymethylfurfural and furfural, which can be electrochemically reduced or oxidized to replace fuels and monomers that today are obtained from petrochemicals. Critical parameters such as electrode materials and electrolyte pH are discussed in relation to their influence on conversion efficiency and product distribution.This article is part of the discussion meeting issue 'Green carbon for the chemical industry of the future'.
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Affiliation(s)
- Zamaan Mukadam
- Department of Materials, Imperial College London, London, UK
| | - Soren B. Scott
- Department of Materials, Imperial College London, London, UK
- Department of Chemistry, University of Copenhagen, Copenhagen2100, Denmark
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147
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Sannes DK, Pulumati SH, Skúlason E, Nova A, Olsbye U. CO 2 hydrogenation to methanol over Pt functionalized Hf-UiO-67 versus Zr-UiO-67. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2024; 382:20230269. [PMID: 39307161 PMCID: PMC11449097 DOI: 10.1098/rsta.2023.0269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 06/04/2024] [Indexed: 10/06/2024]
Abstract
Sustainable methanol formation from CO2/H2 is potentially a key process in the post-fossil chemical industry. In this study, Hf- and Zr-based metal-organic framework (MOF) materials with UiO-67 topology, functionalized with Pt nanoparticles, have been tested for CO2 hydrogenation at 30 bar and 170-240°C. The highest methanol formation rate, 14 molmethanol molPt-1 h-1, was obtained over a Hf-based catalyst, compared with the maximum of 6.2 molmethanol molPt-1 h-1 for the best Zr-based analogue. However, changing the node metal did not significantly affect product distribution or apparent activation energy for methanol formation (44-52 kJ mol-1), strongly indicating that the higher activity of the Hf-based analogues is associated with a higher number of active sites. Both catalysts showed stable catalytic performance during testing under kinetic conditions, but the addition of 2 vol% water to the feed induced catalyst deactivation, in particular the Hf-MOFs. Interestingly, mainly methanol and methane formation rates decreased, while CO formation rates were less affected by deactivation. No direct correlation was found between catalytic stability and framework stability (crystallinity, specific surface area). Experimental and computational studies suggest that water adsorption strength to the MOF node may affect the relative catalytic stability of Hf-UiO-67-Pt versus Zr-UiO-67-Pt methanol catalysts.This article is part of the discussion meeting issue 'Green carbon for the chemical industry of the future'.
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Affiliation(s)
- Dag Kristian Sannes
- SMN Centre for Material Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway
| | - Sri Harsha Pulumati
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Hjarðarhagi 2, VR-III, Reykjavík 107, Iceland
| | - Egill Skúlason
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Hjarðarhagi 2, VR-III, Reykjavík 107, Iceland
| | - Ainara Nova
- SMN Centre for Material Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Oslo N-0315, Norway
| | - Unni Olsbye
- SMN Centre for Material Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway
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148
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Liu L, Xu Y, Su J, Wei J, Liu X, Peng Q, Chang J, Teng B. Exploring microstructures of metal-doped oxides via simulated Raman spectrum. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124616. [PMID: 38857547 DOI: 10.1016/j.saa.2024.124616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 05/30/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
Solid solution of metal-doped oxide has been widely used in material industry and catalysis process. Its performance is highly correlated with the distribution of doped ions. Due to the complex distribution of doped ions in solid solution and its variation with temperatures, to obtain the microstructures of metal-doped ions in solid solution remains a substantial challenge. Taken Ce1-xZrxO2 as a model, the global structure searching, structures proportion with temperature determined by Boltzmann distribution, and the weighted simulation Raman spectra were integrated to explore the microstructures of metal-doped solid solution oxides. It was further verified by application into rutile and anatase TiO2 mixture, indicating that the present method is feasible to deduce the microstructure of metal composite oxides. We anticipate that it provides a powerful solution to explore microstructures of solid solution and complex metal oxides.
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Affiliation(s)
- Le Liu
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yuxing Xu
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Junchao Su
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jiangtao Wei
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xingchen Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Qing Peng
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jie Chang
- Institute of Sustainability of Chemical, Energy and Environment, Agency for Science, Technology and Research, Singapore 627833, Singapore.
| | - Botao Teng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China.
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149
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Li DC, Tian Z, Huang X, Zhang W, Wang W, Zhang Q, Deng X, Wang GH. Hierarchically porous and flexible chitin-fiber/melamine-sponge composite filter with high-loading of PdAu nanoparticles for effective hydrodechlorination of chlorophenols. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135683. [PMID: 39216243 DOI: 10.1016/j.jhazmat.2024.135683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 08/02/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
Hydrodechlorination has emerged as a promising technique for detoxifying chlorophenols (CPs) in wastewater, but it suffers from sluggish reaction kinetics and limited durability due to the lack of effective and stable catalysts. Herein, a composite filter consisting of melamine-sponge (MS), chitin fiber (CF) and ultrafine PdAu nanoparticles (PdAu/CF-MS) has been designed for continuous hydrodechlorination of CPs by using formic acid as a H-donor and sodium formate as a promoter. Benefitting from the dense active sites, rich porosity, and synergetic interaction of Pd/Au, the PdAu/CF-MS filter exhibits excellent hydrodechlorination performance (∼ 100 % conversion) towards 4-chlorophenol (1 mM, fluxes below 6100 mL·h-1·g-1) and outstanding durability (over 500 h at 61 mL·h-1·g-1), surpassing most reported counterparts (usually deactivated within 200 h or several cycles). Moreover, other CPs can also be effectively dechlorinated by the PdAu/CF-MS filter. The catalytic system proposed herein will provide a promising candidate for the detoxification of wastewater containing toxic CPs.
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Affiliation(s)
- De-Chang Li
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Zhengbin Tian
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China
| | - Xianliang Huang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, 266042 Qingdao, China
| | - Wan Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, 266042 Qingdao, China
| | - Wenquan Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Qian Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xiaohui Deng
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China
| | - Guang-Hui Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266101 Qingdao, China; Shandong Energy Institute, 266101 Qingdao, China; Qingdao New Energy Shandong Laboratory, 266101 Qingdao, China; University of Chinese Academy of Sciences, 100049 Beijing, China.
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150
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Zhao J, Sun M, Liu W, Chen H, Huang X, Gao Y, Teng H, Li Z. In-situ sonochemical formation of N-graphyne modulated porous g-C 3N 4 for boosted photocatalysis degradation of pollutants and nitrogen fixation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124629. [PMID: 38865891 DOI: 10.1016/j.saa.2024.124629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 06/02/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024]
Abstract
Herein, Nitrogen-doped graphyne/porous g-C3N4 composites are firstly in-situ synthesized via the ultrasound vibration of CaC2, triazine, and porous g-C3N4 in absolute ethanol. A variety of characterizations are performed to investigate the morphology, microstructure, composition, and electrical/optical features of the obtained composites, such as transmission electron microscopy, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectra, X-ray photoelectron spectroscopy, and so forth. It is found that N-doped graphyne with flexible folds lamellar structure is intimately attached to flake g-C3N4 in the as-prepared composites. An enlargement of 1.68 and 1.44 folds for the photocatalytic degradation of levofloxacin, rhodamine B, Methylene blue, and Tetracycline is realized by N-doped graphyne/g-C3N4 in comparison with that of pristine g-C3N4, respectively. In addition, the highest NH3 production rate attains 1.71 mmol⋅gcat-1⋅h-1 for N-doped graphyne/g-C3N4, which is 5.89 times larger than that of g-C3N4 (0.29 mmol⋅gcat-1⋅h-1). The improved mechanism of photocatalysis including higher photo-response and carrier separation rate is verified by transient photo-current, transient photo-potential, Mott-Schottky plots, Tafel plots, electrochemical impedance spectroscopy, turn-over frequency, photoluminescence spectra, and UV-vis diffuse absorption spectra, etc. Overall, the current study shows that N-doped graphyne synthesized from CaC2 and triazine is a useful decoration to modulate the photocatalytic features of g-C3N4, which can also be widely extended for in-situ modification of other photocatalysts.
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Affiliation(s)
- Junjie Zhao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Mingxuan Sun
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Wenzhu Liu
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Haohao Chen
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Xiangzhi Huang
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yu Gao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Huanying Teng
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Ziyang Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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