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Balakrishnan A, Vijaya Suryaa K, Chinthala M, Kumar A. Mechanistic insights of PO 43- functionalized carbon nitride homojunction hydrogels in photocatalytic-self-Fenton-peroxymonosulfate system for tetracycline degradation. J Colloid Interface Sci 2024; 669:366-382. [PMID: 38718590 DOI: 10.1016/j.jcis.2024.04.177] [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: 02/05/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/27/2024]
Abstract
In this study, metal-free PO43- enriched g-C3N4/g-C3N4 (PGCN) homojunction alginate 3D beads were developed for in-situ H2O2 production under visible light. Later, the photocatalytic-self-Fenton system was integrated with peroxymonosulfate for tetracycline degradation. Initially, the PO43- enriched g-C3N4 (PCN) and a homojunction composed of PCN and g-C3N4 (GCN) were prepared via the wet-impregnation method. Later, PGCN homojunction was formulated into 3D alginate beads through the blend-crosslinking method. The comprehensive characterization of the homojunction beads affirmed the closer contact between the semiconductors, alteration of the bandgap, faster channelization of electron-hole pairs, and improved separation of charge carriers that attributed to higher catalytic efficacy. The PGCN beads exhibited a maximum H2O2 production of 535 ± 12 µM under visible light irradiation for 60 min. The homojunction hydrogels displayed 99 ± 0.25 % tetracycline degradation in 20 min in the photocatalytic-self-Fenton-PMS system. The experimental studies also claimed a maximum chemical oxygen demand removal of 81 ± 3.6 % in 20 min with maximum reusability of beads up to 20 cycles. The Z-scheme electron migration mechanism is proposed based on the results aided by scavenger and electron spin resonance analysis. Overall, the as-synthesized alginate-supported homojunction-based photocatalytic-self-Fenton-peroxymonosulfate system is highly versatile and reusable for energy and environmental remediation.
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Affiliation(s)
- Akash Balakrishnan
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - K Vijaya Suryaa
- Environmental Pollution Abatement Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - Mahendra Chinthala
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India.
| | - Arvind Kumar
- Environmental Pollution Abatement Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
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2
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Li M, Ke S, Yang X, Shen L, Yang MQ. S-scheme homojunction of 0D cubic/2D hexagonal ZnIn 2S 4 for efficient photocatalytic reduction of nitroarenes. J Colloid Interface Sci 2024; 674:547-559. [PMID: 38943915 DOI: 10.1016/j.jcis.2024.06.177] [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: 05/04/2024] [Revised: 06/07/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
The targeted conversion of toxic nitroarenes to corresponding aminoarenes presents significant promise in simultaneously addressing environmental pollution concerns and producing value-added fine chemicals. In this study, we synthesize a 0D/2D ZnIn2S4 homojunction (CH-ZnIn2S4) by in situ growth of cubic ZnIn2S4 (C-ZnIn2S4) quantum dots onto the surface of ultrathin hexagonal ZnIn2S4 (H-ZnIn2S4) nanosheets for photocatalytic reduction of nitroarenes to aminoarenes using water as a hydrogen donor. The optimal performance of photocatalytic nitro reduction over the 0D/2D CH-ZnIn2S4 homojunction reaches 96.1% within 20 min of visible light irradiation, which is 2.45 and 1.52 times than that of C-ZnIn2S4 (39.3%) and H-ZnIn2S4 (63.3%), respectively. The improved photocatalytic performance can be attributed to the formation of a step-type S-scheme homojunction, characterized by identity chemical composition and natural lattice matching. The configuration enables continuous band bending and a low energy barrier of charge transportation, benefiting the charge transfer across the interface while maximizing their redox capabilities. Furthermore, the 2D structure of H-ZnIn2S4 nanosheets offers abundant surface sites to immobilize the 0D C-ZnIn2S4 that provides ample exposed active sites with low overpotential for HER, thereby ensuring high hydrogenation reduction activity of nitroarenes. The study is expected to inspire further interest in the reasonable design of homojunction structures for efficient and sustainable photocatalytic redox reactions.
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Affiliation(s)
- Mengqing Li
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, P.R. China
| | - Suzai Ke
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, P.R. China
| | - Xuhui Yang
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, P.R. China
| | - Lijuan Shen
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, P.R. China.
| | - Min-Quan Yang
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350117, P.R. China.
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3
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Mishra SR, Gadore V, Singh KR, Pandey SS, Ahmaruzzaman M. Developing In 2S 3 upon modified MgTiO 3 anchored on nitrogen-doped CNT for sustainable sensing and removal of toxic insecticide clothianidin. ENVIRONMENTAL RESEARCH 2024; 259:119435. [PMID: 38914255 DOI: 10.1016/j.envres.2024.119435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/24/2024] [Accepted: 06/15/2024] [Indexed: 06/26/2024]
Abstract
Herein, the study introduces a novel bifunctional In2S3/MgTiO3/TiO2@N-CNT (IMTNC) nanocomposite, which is poised to revolutionize the detection and removal of clothianidin (CLD) from aquatic environments by synergistic adsorption and photodegradation. Confirmation of the material's synthesis was done using structural, optical, morphological, and chemical characterizations. An outstanding sensitivity of 2.168 μA/nM.cm2 with a linear range of 4-100 nM and a LOD of 0.04 nM, along with an exceptional elimination efficiency of 98.06 ± 0.84% for about 10 ppm CLD within 18 min was demonstrated by the IMTNC nanocomposite. Extensive studies were carried out to appraise the material's effectiveness in the presence of various interfering species, such as cations, anions, organic compounds, and different water matrices, and a comprehensive assessment of its stability throughout several cycles was made. Response Surface Methodology (RSM) study was used to determine the ideal removal conditions for improved performance. In addition, the catalytic performance in removing various other pollutants was also analyzed. Adding In2S3 and developing N-doped Carbon Nanotubes (N-CNT) increased conductivity and higher electrochemical sensing skills, improving charge transfer and increasing photocatalytic activity. This research underscores the potential of the IMTNC nanocomposite as a promising candidate for advanced environmental sensing and remediation applications.
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Affiliation(s)
- Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, Assam, 788010, India
| | - Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, Assam, 788010, India
| | - Kshitij Rb Singh
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, Assam, 788010, India.
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Balakrishnan A, Vijaya Suryaa K, Tripathy H, Trivedi S, Kumar A, Chinthala M. Phosphorylated g-C 3N 4/sulfur self-doped g-C 3N 4 homojunction carboxymethyl cellulose beads: An efficient photocatalyst for H 2O 2 production. J Colloid Interface Sci 2024; 663:1087-1098. [PMID: 38402009 DOI: 10.1016/j.jcis.2024.02.110] [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: 12/20/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 02/26/2024]
Abstract
The development of highly reusable, affordable, and durable photocatalysts for the production of hydrogen peroxide (H2O2) remained a challenge. In this study, a homojunction photocatalyst (SPGCN) is constructed between phosphorylated g-C3N4 (PCN) and sulfur self-doped g-C3N4 (SCN) using a simple wet impregnation method. Later, the obtained SPGCN homojunction is transformed into hydrogel beads using carboxymethyl cellulose via an effective cross-linking strategy (SPGCN/CMC). The photocatalytic beads displayed a phenomenal H2O2 production of 3.5 mM under visible light illumination for 60 min. The SPGCN/CMC hydrogel beads showed a maximum reusability of 10 cycles with a decline of 1.5 mM H2O2 production. The improved photocatalytic efficiency is indicated by strengthened utilization of visible light via tuning of the band gap, suppressed recombination of electron-hole pairs, and higher separation efficiency through the effective construction of Z-scheme between the phosphorylated carbon nitride and the sulfur-self-doped carbon nitride present in the SPGCN/CMC beads. The mechanistic studies affirmed the dominant role of superoxide radicals in H2O2 production. The photocatalytic H2O2 production followed a highly selective two-electron reduction reaction. Overall, this study highlights the efficient engineering of carbon nitride-based materials towards artificial photosynthesis.
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Affiliation(s)
- Akash Balakrishnan
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - K Vijaya Suryaa
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - Hritankhi Tripathy
- Environmental Pollution Abatement Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - Suverna Trivedi
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Arvind Kumar
- Environmental Pollution Abatement Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India
| | - Mahendra Chinthala
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Odisha 769 008, India.
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Zhou H, Liu Y, Jin C, Shi Z, Tang C, Zhang W, Zhu L, Liu G, Huo S, Kong Z. Fabrication of lignosulfonate-derived porous carbon via pH-tunable self-assembly strategy for efficient atrazine removal. Int J Biol Macromol 2024; 270:132148. [PMID: 38723800 DOI: 10.1016/j.ijbiomac.2024.132148] [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: 02/16/2024] [Revised: 04/17/2024] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
Herein, a straightforward protocol was developed for the one-pot synthesis of N-doped lignosulfonate-derived carbons (NLDCs) with a tunable porous structure using natural amino acids-templated self-assembly strategy. Specifically, histidine was employed as a template reagent, leading to the preparation of 10-NLDC-21 with remarkable characteristics, including the large specific surface area (SBET = 1844.5 m2/g), pore volume (Vmes = 1.22 cm3/g) and efficient adsorption for atrazine (ATZ) removal. The adsorption behavior of ATZ by NLDCs followed the Langmuir and pseudo-second-order models, suggesting a monolayer chemisorption nature of ATZ adsorption with the maximum adsorption capacity reached up to 265.77 mg/g. Furthermore, NLDCs exhibited excellent environmental adaptability and recycling performance. The robust affinity could be attributed to multi-interactions including pore filling, electrostatic attraction, hydrogen bonding and π-π stacking between the adsorbents and ATZ molecules. This approach offers a practical method for exploring innovative bio-carbon materials for sewage treatment.
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Affiliation(s)
- Hongyan Zhou
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yunlong Liu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Can Jin
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China.
| | - Zhenyu Shi
- Environment Monitoring Center of Jiangsu Province, Nanjing 210036, China
| | - Chunmei Tang
- College of Mechanics and Engineering Sciences, Hohai University, Nanjing, Jiangsu 210098, China
| | - Wei Zhang
- College of Environment, Hohai University, Nanjing, Jiangsu 210098, China
| | - Liang Zhu
- College of Environment, Hohai University, Nanjing, Jiangsu 210098, China
| | - Guifeng Liu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China
| | - Shuping Huo
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China
| | - Zhenwu Kong
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, China.
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Madonia E, Di Vincenzo A, Pettignano A, Scaffaro R, Gulino EF, Conte P, Meo PL. Composite RGO/Ag/Nanosponge Materials for the Photodegradation of Emerging Pollutants from Wastewaters. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2319. [PMID: 38793386 PMCID: PMC11123357 DOI: 10.3390/ma17102319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Some composite materials have been prepared, constituted by a cyclodextrin-bis-urethane-based nanosponge matrix in which a reduced graphene oxide/silver nanoparticles photocatalyst has been dispersed. Different chain extenders were employed for designing the nanosponge supports, in such a way as to decorate their hyper-cross-linked structure with diverse functionalities. Moreover, two different strategies were explored to accomplish the silver loading. The obtained systems were successfully tested as catalysts for the photodegradation of emerging pollutants such as model dyes and drugs. Enhancement of the photoactive species performance (up to nine times), due to the synergistic local concentration effect exerted by the nanosponge, could be assessed. Overall, the best performances were shown by polyamine-decorated materials, which were able to promote the degradation of some particularly resistant drugs. Some methodological issues pertaining to data collection are also addressed.
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Affiliation(s)
- Ettore Madonia
- Department of Food, Agriculture, Food and Forest Sciences, University of Palermo, V.le delle Scienze ed. 4, 90128 Palermo, Italy; (E.M.); (P.C.)
| | - Antonella Di Vincenzo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, V.le delle Scienze ed. 17 “S. Cannizzaro”, 90128 Palermo, Italy
| | - Alberto Pettignano
- Department of Physics and Chemistry “E. Segrè”, University of Palermo, V.le delle Scienze ed. 17 “S. Cannizzaro”, 90128 Palermo, Italy;
| | - Roberto Scaffaro
- Department of Engineering, University of Palermo, V.le delle Scienze ed. 6, 90128 Palermo, Italy; (R.S.); (E.F.G.)
| | - Emmanuel Fortunato Gulino
- Department of Engineering, University of Palermo, V.le delle Scienze ed. 6, 90128 Palermo, Italy; (R.S.); (E.F.G.)
| | - Pellegrino Conte
- Department of Food, Agriculture, Food and Forest Sciences, University of Palermo, V.le delle Scienze ed. 4, 90128 Palermo, Italy; (E.M.); (P.C.)
| | - Paolo Lo Meo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, V.le delle Scienze ed. 17 “S. Cannizzaro”, 90128 Palermo, Italy
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Wang T, Zhang M, Lu Y, Liu Q, Niu Q, You T. Metal-organic-framework-confined quantum dots enhance photocurrent signals: A molecularly imprinted photoelectrochemical cathodic sensor for rapid and sensitive tetracycline detection. Anal Chim Acta 2024; 1293:342269. [PMID: 38331550 DOI: 10.1016/j.aca.2024.342269] [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: 11/28/2023] [Revised: 01/08/2024] [Accepted: 01/19/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Tetracycline (TC), a cost-effective broad-spectrum antibacterial drug, has been excessively utilized in the livestock and poultry industry, leading to a serious overabundance of TC in livestock wastewater. However, conventional analytical methods such as liquid chromatography and gas chromatography face challenges in achieving sensitive detection of trace amounts of TC in complex substrates. Therefore, it is imperative to develop a highly sensitive and anti-interference analytical method for the detection of tetracycline in livestock wastewater. RESULTS A porphyrin-based MOF (PCN-224)-confined carbon dots (CDs) material (CDs@PCN-224) was synthesized by a "bottle-around-ship" strategy. The reduced carrier migration distance is conducive to the separation of electron-hole pairs and enhanced the photocurrent signal due to the tight coupling of CDs and PCN-224. Further, molecularly imprinted polymer (MIP) was synthesized by rapid in-situ UV-polymerization and employed as a recognition element. The specific recognition of the target by imprinted cavities blocks electron transfer, resulting in a "turn off" response signal, thus realizing the selective detection of TC. Under optimal conditions, the constructed MIP-PEC cathodic sensor detected 1.00 × 10-12 M to 1.00 × 10-7 M of TC sensitively, with a limit of detection of 3.72 × 10-13 M. In addition, the proposed MIP-PEC sensor demonstrated good TC detection performance in actual livestock wastewater. SIGNIFICANCE The strategy based on MOF pore-confined quantum dots can effectively enhance the photocurrent response of the photosensitive substrate. Simultaneously, the MIP constructed by in-situ rapid UV-polymerization showed excellent anti-interference and reusable properties. This work provides a promising MIP-PEC cathodic sensing method for the rapid and sensitive detection of antibiotics in complex-matrix environmental samples.
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Affiliation(s)
- Tao Wang
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Mengge Zhang
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yuhao Lu
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Qian Liu
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Qijian Niu
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Tianyan You
- Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
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8
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Zuo RN, Gong JH, Gao XG, Huang JH, Zhang JR, Jiang SX, Guo DW. Using halofuginone-silver thermosensitive nanohydrogels with antibacterial and anti-inflammatory properties for healing wounds infected with Staphylococcus aureus. Life Sci 2024; 339:122414. [PMID: 38216121 DOI: 10.1016/j.lfs.2024.122414] [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: 11/04/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 01/14/2024]
Abstract
Contamination by pathogens, such as bacteria, can irritate a wound and prevent its healing, which may affect the physical fitness of the infected person. As such, the development of more novel nano-biomaterials able to cope with the inflammatory reaction to bacterial infection during the wound healing process to accelerate wound healing is required. Herein, a halofuginone‑silver nano thermosensitive hydrogel (HTPM&AgNPs-gel) was prepared via a physical swelling method. HTPM&AgNPs-gel was characterized based on thermogravimetric analysis, differential scanning calorimetry, morphology, injectability, and rheological mechanics that reflected its exemplary nature. Moreover, HTPM&AgNPs-gel was further tested for its ability to facilitate healing of skin fibroblasts and exert antibacterial activity. Finally, HTPM&AgNPs-gel was tested for its capacity to accelerate general wound healing and treat bacterially induced wound damage. HTPM&AgNPs-gel appeared spherical under a transmission electron microscope and showed a grid structure under a scanning electron microscope. Additionally, HTPM&AgNPs-gel demonstrated excellent properties, including injectability, temperature-dependent swelling behavior, low loss at high temperatures, and appropriate rheological properties. Further, HTPM&AgNPs-gel was found to effectively promote healing of skin fibroblasts and inhibit the proliferation of Escherichia coli and Staphylococcus aureus. An evaluation of the wound healing efficacy demonstrated that HTPM&AgNPs-gel had a more pronounced ability to facilitate wound repair and antibacterial effects than HTPM-gel or AgNPs-gel alone, and exhibited ideal biocompatibility. Notably, HTPM&AgNPs-gel also inhibited inflammatory responses in the healing process. HTPM&AgNPs-gel exhibited antibacterial, anti-inflammatory, and scar repair features, which remarkably promoted wound healing. These findings indicated that HTPM&AgNPs-gel holds great clinical potential as a promising and valuable wound healing treatment.
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Affiliation(s)
- Ru-Nan Zuo
- Animal-Derived Food Safety Innovation Team, College of Animal Science and Technology, Anhui Province Key Lab of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui 230036, PR China; Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Jia-Hao Gong
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Xiu-Ge Gao
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Jin-Hu Huang
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Jun-Ren Zhang
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Shan-Xiang Jiang
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Da-Wei Guo
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China.
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9
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Peng Q, Ye L, Wang L, Kong XY, Tian H, Huang Y, Tian Y, Liu X, Liu H. Boosted Photocatalytic Degradation of Atrazine Using Oxygen-Modified g-C 3N 4: Investigation of the Reactive Oxygen Species Interconversion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1848-1857. [PMID: 38183664 DOI: 10.1021/acs.langmuir.3c03183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2024]
Abstract
Elaborating the specific reactive oxygen species (ROS) involved in the photocatalytic degradation of atrazine (ATZ) is of great significance for elucidating the underlying mechanism. This study provided conclusive evidence that hydroxyl radicals (·OH) were the primary ROS responsible for the efficient photocatalytic degradation of ATZ, thereby questioning the reliability of widely adopted radical quenching techniques in discerning authentic ROS species. As an illustration, oxygen-modified g-C3N4 (OCN) was prepared to counteract the limitations of pristine g-C3N4 (CN). Comparative assessments between CN and OCN revealed a remarkable 10.44-fold improvement in the photocatalytic degradation of ATZ by OCN. This enhancement was ascribed to the increased content of C-O functional groups on the surface of the OCN, which facilitated the conversion of superoxide radicals (·O2-) into hydrogen peroxide (H2O2), subsequently leading to the generation of ·OH. The increased production of ·OH contributed to the efficient dealkylation, dechlorination, and hydroxylation of ATZ. Furthermore, toxicity assessments revealed a significant reduction in ATZ toxicity following its photocatalytic degradation by OCN. This study sheds light on the intricate interconversion of ROS and offers valuable mechanistic insights into the photocatalytic degradation of ATZ.
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Affiliation(s)
- Qintian Peng
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Liqun Ye
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Li Wang
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Xin Ying Kong
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, 637371 , Singapore
| | - Hailin Tian
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Yingping Huang
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
| | - Yiqun Tian
- Hubei Xingfa Chemicals Group Co., Ltd., Yichang 443002, China
| | - Xiang Liu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Honglin Liu
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China
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Hou S, Gao X, Lv X, Zhao Y, Yin X, Liu Y, Fang J, Yu X, Ma X, Ma T, Su D. Decade Milestone Advancement of Defect-Engineered g-C 3N 4 for Solar Catalytic Applications. NANO-MICRO LETTERS 2024; 16:70. [PMID: 38175329 PMCID: PMC10766942 DOI: 10.1007/s40820-023-01297-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/17/2023] [Indexed: 01/05/2024]
Abstract
Over the past decade, graphitic carbon nitride (g-C3N4) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C3N4 is still confronted with a general fatal issue of insufficient supply of thermodynamically active photocarriers due to its inferior solar harvesting ability and sluggish charge transfer dynamics. Fortunately, this could be significantly alleviated by the "all-in-one" defect engineering strategy, which enables a simultaneous amelioration of both textural uniqueness and intrinsic electronic band structures. To this end, we have summarized an unprecedently comprehensive discussion on defect controls including the vacancy/non-metallic dopant creation with optimized electronic band structure and electronic density, metallic doping with ultra-active coordinated environment (M-Nx, M-C2N2, M-O bonding), functional group grafting with optimized band structure, and promoted crystallinity with extended conjugation π system with weakened interlayered van der Waals interaction. Among them, the defect states induced by various defect types such as N vacancy, P/S/halogen dopants, and cyano group in boosting solar harvesting and accelerating photocarrier transfer have also been emphasized. More importantly, the shallow defect traps identified by femtosecond transient absorption spectra (fs-TAS) have also been highlighted. It is believed that this review would pave the way for future readers with a unique insight into a more precise defective g-C3N4 "customization", motivating more profound thinking and flourishing research outputs on g-C3N4-based photocatalysis.
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Affiliation(s)
- Shaoqi Hou
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney (UTS), Sydney, NSW, 2007, Australia
| | - Xiaochun Gao
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China.
| | - Xingyue Lv
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Yilin Zhao
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Xitao Yin
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Ying Liu
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China
| | - Juan Fang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xingxing Yu
- Department of Chemistry, The University of Tokyo, 7-3-1 Hogo, Bunkyo, Tokyo, Japan
| | - Xiaoguang Ma
- Laboratory of Plasma and Energy Conversion, School of Physics and Optoelectronic Engineering, Ludong University, 186 Middle Hongqi Road, Yantai, 264025, People's Republic of China.
| | - Tianyi Ma
- School of Science, STEM College, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Dawei Su
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney (UTS), Sydney, NSW, 2007, Australia.
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11
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Zheng A, Xie S, Li K, Zhang C, Shi H. Performance and mechanism investigation on the enhanced photocatalytic removal of atrazine on S-doped g-C 3N 4. CHEMOSPHERE 2024; 347:140663. [PMID: 37952824 DOI: 10.1016/j.chemosphere.2023.140663] [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: 08/31/2023] [Revised: 10/21/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Developing efficient method for removing low-concentration atrazine, a poisonous chlorinated triazine herbicide with poor biodegradability, was an important measure to control its risk. In this work, highly efficient photocatalytic oxidation of atrazine was achieved on S-doped g-C3N4 (S-g-C3N4). Approximate 99.6% of atrazine was removed in 2 h with a reaction rate constant of 2.76 h-1, nearly 2.44 times that on g-C3N4. The mechanism investigation indicated the improved photocatalytic performance of S-g-C3N4 could be attributed to the enlarged specific surface area, extended light absorption as well as the accelerated separation of the photogenerated charge carriers, which was brought about by the successful doping of sulfur in g-C3N4. Meanwhile, the influence of sulfur doping on the generation and contribution of different reactive species in atrazine removal were also elucidated. It revealed that compared with g-C3N4, the more positive valence band potential of S-g-C3N4 was beneficial to produce more singlet oxygen, which could react synergistically with the superoxide radicals, leading to the improved atrazine removal efficiency. The S-g-C3N4 based photocatalytic system also showed preferential photocatalytic oxidation capability in removing other triazine pesticides compared with 3-chlorophenol (3-CP). The potential applicability of the S-g-C3N4 based photocatalytic system in removing atrazine in high salty water was also investigated, which exhibited superior anti-interference ability towards virous coexistent ions. This work will provide essential and fundamental information for establishing efficient photocatalytic system for triazine type pollutants in waters.
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Affiliation(s)
- Anqi Zheng
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Siqi Xie
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Kewang Li
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Chaojie Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Huijie Shi
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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12
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Tong S, Zhang X, Yang P. G-C 3N 4 sheet nanoarchitectonics with island-like crystalline/amorphous homojunctions towards efficient H 2 and H 2O 2 evolution. ENVIRONMENTAL RESEARCH 2023; 236:116805. [PMID: 37532211 DOI: 10.1016/j.envres.2023.116805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
Photocatalystic evolution of H2O2 from water and oxygen has attracted significant attention because of environmentally friendly. The absorption in visible and hydrophilic feature of graphitic carbon nitride (g-C3N4) make it a good candidate. In this paper, a rapid post-treatment at high temperature was developed to obtain g-C3N4 nanosheets with abundant crystalline/amorphous interfaces to form homojunctions, which optimized uniplanar carrier mobility dynamics. The conversion from bulk to two-dimensional g-C3N4 resulted from the breakage of interplanar hydrogen bonds and interlayer Van der Waals force. The unique morphology not only rendered photocatalyst with larger specific surface area but also inhibited the robust volume recombination of charge carriers. The accelerated charge carriers flow at the interface, interplane and interlayer together ameliorated the separation and transfer of electrons and holes. A new-emerged n→π* transition ameliorated the poor light utilization efficiency. Beyond the increased photocatalytic H2 evolution property (779.2 μmol g-1 h-1), optimized sample displayed a H2O2 evolution activity as high as 4877.1 μM g-1 h-1 under visible light illumination, which was ∼5.8 times of that of bulk g-C3N4. Detailed photocatalytic mechanism investigation manifested that the two-step single-electron oxygen reduction process occupied the dominant status in H2O2 evolution. This work proposed a novel strategy for obtaining g-C3N4 homojunctions as a promising bi-functional metal-free catalyst to be applied in clean energy production field.
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Affiliation(s)
- Song Tong
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xiao Zhang
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24 St., 31-155, Krakow, Poland.
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan, 250022, PR China.
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13
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Liu T, Zhu W, Wang N, Zhang K, Wen X, Xing Y, Li Y. Preparation of Structure Vacancy Defect Modified Diatomic-Layered g-C 3 N 4 Nanosheet with Enhanced Photocatalytic Performance. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302503. [PMID: 37344350 PMCID: PMC10460902 DOI: 10.1002/advs.202302503] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/29/2023] [Indexed: 06/23/2023]
Abstract
Structure self-modification of graphitic carbon nitride (g-C3 N4 ) without the assistance of other species has attracted considerable attention. In this study, the structure vacancy defect modified diatomic-layered g-C3 N4 nanosheet (VCN) is synthesized by thermal treatment of bulk g-C3 N4 in a quartz tube with vacuum atmosphere that will generate a pressure-thermal dual driving force to boost the exfoliation and formation of structure vacancy for g-C3 N4 . The as-prepared VCN possesses a large specific surface area with a rich pore structure to provide more active centers for catalytic reactions. Furthermore, the as-formed special defect level in VCN sample can generate a higher exciton density at photoexcitation stage. Meanwhile, the photogenerated charges will rapidly transfer to VCN surface due to the greatly shortened transfer path resulting from the ultrathin structure (≈1.5 nm), which corresponds to two graphite carbon nitride atomic layers. In addition, the defect level alleviates the drawback of enlarged bandgap caused by the quantum size effect of nano-scaled g-C3 N4 , resulting in a well visible-light utilization. As a result, the VCN sample exhibits an excellent photocatalytic performance both in hydrogen production and photodegradation of typical antibiotics.
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Affiliation(s)
- Tian Liu
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Wei Zhu
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Ning Wang
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Keyu Zhang
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Xue Wen
- School of ChemistryXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Yan Xing
- Jilin Provincial Key Laboratory of Advanced Energy MaterialsDepartment of ChemistryNortheast Normal UniversityChangchun130024P. R. China
| | - Yunfeng Li
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
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Hu T, Feng P, Guo L, Chu H, Liu F. Construction of Built-In Electric Field in TiO 2@Ti 2O 3 Core-Shell Heterojunctions toward Optimized Photocatalytic Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2125. [PMID: 37513136 PMCID: PMC10386241 DOI: 10.3390/nano13142125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
A series of Ti2O3@TiO2 core-shell heterojunction composite photocatalysts with different internal electric fields were synthesized using simple heat treatment methods. The synthesized Ti2O3@TiO2 core-shell heterojunction composites were characterized by means of SEM, XRD, PL, UV-Vis, BET, SPV, TEM and other related analytical techniques. Tetracycline (TC) was used as the degradation target to evaluate the photocatalytic performance of the synthesized Ti2O3@TiO2 core-shell heterojunction composites. The relevant test results show that the photocatalytic performance of the optimized materials has been significantly enhanced compared to Ti2O3, while the photocatalytic degradation rate has increased from 28% to 70.1%. After verification via several different testing and characterization techniques, the excellent catalytic performance is attributed to the efficient separation efficiency of the photogenerated charge carriers derived from the built-in electric field formed between Ti2O3 and TiO2. When the recombination of electrons and holes is occupied, more charges are generated to reach the surface of the photocatalyst, thereby improving the photocatalytic degradation efficiency. Thus, this work provides a universal strategy to enhance the photocatalytic performance of Ti2O3 by coupling it with TiO2 to build an internal electric field.
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Affiliation(s)
- Tingting Hu
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Panpan Feng
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Liping Guo
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hongqi Chu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Fusheng Liu
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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15
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Simultaneous enhancement of charge transfer and light absorption via construction of atom–sharing Bi/Bi3Ti2O8F:Yb3+,Er3+ plasmonic heterojunctions for the efficient degradation of ciprofloxacin. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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