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Liu X, Xu C, Wang X. Incorporation of Hydroquinone in the Synthesis of Bi 2Ti 2O 7-TiO 2 Contributes to Higher Efficiency of Hydroquinone Degradation: Preparation, Characterization, and Photocatalytic Mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:19260-19269. [PMID: 39185613 DOI: 10.1021/acs.langmuir.4c02463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
In this paper, Bi-doped hydroquinone (HDQ) molecularly imprinted TiO2 (Bi-HDQ-TiO2) with the synthesis of Bi2Ti2O7-TiO2 as the main ingredient was developed. Using HDQ as an imprinted molecule, Bi(NO3)3-5H2O was introduced into the synthesis of Bi-HDQ-TiO2, which revealed that bismuth oxide was protected by HDQ in the temperature range of 0-450 °C, and during the gradual increase of the temperature up to 550 °C, the HDQ eluted completely, then the surrounding TiO2 was nucleated by bismuth oxide and bonded with the bismuth oxide, causing all of them to be transformed into Bi2Ti2O7. The excited electrons of the catalyst could be transported efficiently in various surface interfaces, meanwhile inhibiting the complexation of photogenerated carriers, thereby improving the efficiency of photocatalysis. A degradation efficiency of 96.35% of HDQ was achieved under 30 min UV irradiation, indicating that the candidate material has a promising future application in environmental purification or human health.
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Affiliation(s)
- Xian Liu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Chengxiang Xu
- 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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2
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Zhong T, Huang W, Yao Z, Long X, Qu W, Zhao H, Tian S, Shu D, He C. Engineering of Graphitic Carbon Nitride (g-C 3N 4) Based Photocatalysts for Atmospheric Protection: Modification Strategies, Recent Progress, and Application Challenges. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404696. [PMID: 39155427 DOI: 10.1002/smll.202404696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/13/2024] [Indexed: 08/20/2024]
Abstract
Graphitic carbon nitride (g-C3N4) is a prominent photocatalyst that has attracted substantial interest in the field of photocatalytic environmental remediation due to the low cost of fabrication, robust chemical structure, adaptable and tunable energy bandgaps, superior photoelectrochemical properties, cost-effective feedstocks, and distinctive framework. Nonetheless, the practical application of bulk g-C3N4 in the photocatalysis field is limited by the fast recombination of photogenerated e--h+ pairs, insufficient surface-active sites, and restricted redox capacity. Consequently, a great deal of research has been devoted to solving these scientific challenges for large-scale applications. This review concisely presents the latest advancements in g-C3N4-based photocatalyst modification strategies, and offers a comprehensive analysis of the benefits and preparation techniques for each strategy. It aims to articulate the complex relationship between theory, microstructure, and activities of g-C3N4-based photocatalysts for atmospheric protection. Finally, both the challenges and opportunities for the development of g-C3N4-based photocatalysts are highlighted. It is highly believed that this special review will provide new insight into the synthesis, modification, and broadening of g-C3N4-based photocatalysts for atmospheric protection.
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Affiliation(s)
- Tao Zhong
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wenbin Huang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zhangnan Yao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xianhu Long
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wei Qu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Huinan Zhao
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Shuanghong Tian
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dong Shu
- Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Chun He
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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Liu Q, Xie M, Wang C, Deng M, Li P, Yang X, Zhao N, Huang C, Zhang X. Rapid Preparation Triggered by Visible Light for Tough Hydrogel Sensors with Low Hysteresis and High Elasticity: Mechanism, Use and Recycle-by-Design. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311647. [PMID: 38593379 DOI: 10.1002/smll.202311647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/05/2024] [Indexed: 04/11/2024]
Abstract
Hydrogels have emerged as promising candidates for flexible devices and water resource management. However, further applications of conventional hydrogels are restricted due to their limited performance and lack of a recycling strategy. Herein, a tough, flexible, and recyclable hydrogel sensor via a visible-light-triggered polymerization is rapidly created. The Zn2+ crosslinked terpolymer is in situ polymerized using g-C3N4 as the sole initiator to form in situ chain entanglements, endowing the hydrogels with low hysteresis and high elasticity. In the use phase, the hydrogel sensor exhibited high ion conductivity, excellent mechanical properties, fast responsiveness, high sensitivity, and remarkable anti-fatigue ability, making it exceptionally effective in accurately monitoring complex human movements. At the end-of-life (EOL), leveraging the synergy between the photodegradation capacity of g-C3N4 and the adsorption function of the hydrogel matrix, the post-consumer hydrogel is converted into water remediation materials, which not only promoted the rapid degradation of organic pollutants, but also facilitated collection and reuse. This innovative strategy combined in situ entangling reinforcement and tailored recycle-by-design that employed g-C3N4 as key blocks in the hydrogel to achieve high performance in the use phase and close the loop through the reutilization at EOL, highlighting the cost-effective synthesis, specialized structure, and life cycle management.
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Affiliation(s)
- Qi Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Mingwei Xie
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Chenghao Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Mingming Deng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Ping Li
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Xulin Yang
- School of Mechanical Engineering, Sichuan Province Engineering Research Centre for Powder Metallurgy, Chengdu University, Chengdu, 610106, China
| | - Nihui Zhao
- Key Laboratory of Southwest China Wildlife Resources Conservation, the Ministry of Education, College of Life Science, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Chi Huang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan, 637002, China
| | - Xinghua Zhang
- School of Science, Beijing Jiaotong University, Beijing, 100044, China
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Wang G, Dong X, Cheng M, Liu Y, Wang J, Liu H, Chen Y, Shi Q, Ouyang Z, Liu X. DFT Predirected Molecular Engineering Design of Donor-Acceptor Structured g-C 3N 4 for Efficient Photocatalytic Tetracycline Abatement. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311798. [PMID: 38461518 DOI: 10.1002/smll.202311798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/21/2024] [Indexed: 03/12/2024]
Abstract
The photocatalytic environmental decontamination ability of carbon nitride (g-C3N4, CN) typically suffers from their inherent structural defects, causing rapid recombination of photogenerated carriers. Conjugating CN with tailored donor-acceptor (D-A) units to counteract this problem through electronic restructuring becomes a feasible strategy, where confirmation by density functional theory (DFT) calculations becomes indispensable. Herein, DFT is employed to predirect the copolymerization modification of CN by benzene derivatives, screening benzaldehyde as the optimal electron-donating candidate for the construction of reoriented intramolecular charge transfer path. Experimental characterization and testing corroborate the formation of a narrowed bandgap as well as high photoinduced carrier separation. Consequently, the optimal BzCN-2 exhibited superior photocatalytic capacity in application for tetracycline hydrochloride degradation, with 3.73 times higher than that of CN. Besides, the BzCN-2-based photocatalytic system is determined to have a toxicity-mitigating effect on TC removal via T.E.S.T and prefers the removal of dissociable TC2- species under partial alkalinity. This work provides insight into DFT guidance for the design of D-A conjugated polymer and its application scenarios in photocatalytic decontamination.
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Affiliation(s)
- Guangfu Wang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Xiaqing Dong
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Yang Liu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Jun Wang
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Hongda Liu
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Yongxi Chen
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Qingkai Shi
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Zenglin Ouyang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, China
| | - Xuanming Liu
- College of Biology, Hunan University, Changsha, 410082, China
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Yang B, Dong W, Zhu C, Huang X, Han Y, Zheng Y, Yan J, Zhuang Z, Yu Y. Reinforcing 2D Single-Crystal Bi 2O 2CO 3 with Additional Interlayer Carbonates by CO 2-Assisted Solid-to-Solid Phase Transition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401559. [PMID: 38659393 DOI: 10.1002/smll.202401559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/01/2024] [Indexed: 04/26/2024]
Abstract
A facile gaseous CO2 mediated solid-to-solid transformation principle is adopted to insert additional CO3 2- anions into the thin single-crystal nanosheets of Bi2O2CO3, which is built of periodic arrays of intrinsic CO3 2- anions and (Bi2O2)2+ layers. The additional CO3 2- anions create abundant defects. The Bi2O2CO3 nanosheets with rich interlayer CO3 2- exhibit superior electronic properties and charge transfer kinetics than the pristine single-crystal 2D Bi2O2CO3 and display enhanced catalytic activity in photocatalytic CO2 reduction reaction and the photocatalytic oxidative degradation of organic pollutants. This work thus illustrates interlayer engineering as a flexible means to build layered 2D materials with excellent properties.
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Affiliation(s)
- Bixia Yang
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Weilong Dong
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Chongbing Zhu
- AQUA Worth (Suzhou) Environmental Protection Co.,Ltd, Suzhou, 215011, China
| | - Xinlian Huang
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Yunhui Han
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Yanting Zheng
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Jiawei Yan
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Zanyong Zhuang
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
| | - Yan Yu
- College of Materials Science and Engineering, Fuzhou University, New Campus, Minhou, Fujian, 350108, China
- Key Laboratory of Advanced Materials Technologies, Fuzhou University, Fuzhou, 350108, China
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Abazari R, Sanati S, Bajaber MA, Javed MS, Junk PC, Nanjundan AK, Qian J, Dubal DP. Design and Advanced Manufacturing of NU-1000 Metal-Organic Frameworks with Future Perspectives for Environmental and Renewable Energy Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306353. [PMID: 37997226 DOI: 10.1002/smll.202306353] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/08/2023] [Indexed: 11/25/2023]
Abstract
Metal-organic frameworks (MOFs) represent a relatively new family of materials that attract lots of attention thanks to their unique features such as hierarchical porosity, active metal centers, versatility of linkers/metal nodes, and large surface area. Among the extended list of MOFs, Zr-based-MOFs demonstrate comparably superior chemical and thermal stabilities, making them ideal candidates for energy and environmental applications. As a Zr-MOF, NU-1000 is first synthesized at Northwestern University. A comprehensive review of various approaches to the synthesis of NU-1000 MOFs for obtaining unique surface properties (e.g., diverse surface morphologies, large surface area, and particular pore size distribution) and their applications in the catalysis (electro-, and photo-catalysis), CO2 reduction, batteries, hydrogen storage, gas storage/separation, and other environmental fields are presented. The review further outlines the current challenges in the development of NU-1000 MOFs and their derivatives in practical applications, revealing areas for future investigation.
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Affiliation(s)
- Reza Abazari
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Soheila Sanati
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Majed A Bajaber
- Chemistry Department, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Peter C Junk
- College of Science and Engineering, James Cook University, Townsville, 4811, Australia
| | - Ashok Kumar Nanjundan
- Schole of Engineering, University of Southern Queensland, Springfield, Queensland, 4300, Australia
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, China
| | - Deepak P Dubal
- Centre for Materials Science, School of Chemistry & Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
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Li HX, Li QX, Li FZ, Liu JP, Gong GD, Zhang YQ, Leng YB, Sun T, Zhou Y, Han ST. Ni Single-Atoms Based Memristors with Ultrafast Speed and Ultralong Data Retention. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308153. [PMID: 37939686 DOI: 10.1002/adma.202308153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/25/2023] [Indexed: 11/10/2023]
Abstract
Memristor with low-power, high density, and scalability fulfills the requirements of the applications of the new computing system beyond Moore's law. However, there are still nonideal device characteristics observed in the memristor to be solved. The important observation is that retention and speed are correlated parameters of memristor with trade off against each other. The delicately modulating distribution and trapping level of defects in electron migration-based memristor is expected to provide a compromise method to address the contradictory issue of improving both switching speed and retention capability. Here, high-performance memristor based on the structure of ITO/Ni single-atoms (NiSAs/N-C)/Polyvinyl pyrrolidone (PVP)/Au is reported. By utilizing well-distributed trapping sites , small tunneling barriers/distance and high charging energy, the memristor with an ultrafast switching speed of 100 ns, ultralong retention capability of 106 s, a low set voltage (Vset ) of ≈0.7 V, a substantial ON/OFF ration of 103 , and low spatial variation in cycle-to-cycle (500 cycles) and device-to-device characteristics (128 devices) is demonstrated. On the premise of preserving the strengths of a fast switching speed, this memristor exhibits ultralong retention capability comparable to the commercialized flash memory. Finally, a memristor ratioed logic-based combinational memristor array to realize the one-bit full adder is further implemented.
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Affiliation(s)
- Hua-Xin Li
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Qing-Xiu Li
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Fu-Zhi Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Jia-Peng Liu
- School of Advanced Energy, Sun Yat-Sen University, Shenzhen, 518107, P. R. China
| | - Guo-Dong Gong
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yu-Qi Zhang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yan-Bing Leng
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Tao Sun
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ye Zhou
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Su-Ting Han
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
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8
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Kalantari Bolaghi Z, Rodriguez-Seco C, Yurtsever A, Ma D. Exploring the Remarkably High Photocatalytic Efficiency of Ultra-Thin Porous Graphitic Carbon Nitride Nanosheets. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:103. [PMID: 38202558 PMCID: PMC10781176 DOI: 10.3390/nano14010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
Graphitic carbon nitride (g-C3N4) is a metal-free photocatalyst used for visible-driven hydrogen production, CO2 reduction, and organic pollutant degradation. In addition to the most attractive feature of visible photoactivity, its other benefits include thermal and photochemical stability, cost-effectiveness, and simple and easy-scale-up synthesis. However, its performance is still limited due to its low absorption at longer wavelengths in the visible range, and high charge recombination. In addition, the exfoliated nanosheets easily aggregate, causing the reduction in specific surface area, and thus its photoactivity. Herein, we propose the use of ultra-thin porous g-C3N4 nanosheets to overcome these limitations and improve its photocatalytic performance. Through the optimization of a novel multi-step synthetic protocol, based on an initial thermal treatment, the use of nitric acid (HNO3), and an ultrasonication step, we were able to obtain very thin and well-tuned material that yielded exceptional photodegradation performance of methyl orange (MO) under visible light irradiation, without the need for any co-catalyst. About 96% of MO was degraded in as short as 30 min, achieving a normalized apparent reaction rate constant (k) of 1.1 × 10-2 min-1mg-1. This represents the highest k value ever reported using C3N4-based photocatalysts for MO degradation, based on our thorough literature search. Ultrasonication in acid not only prevents agglomeration of g-C3N4 nanosheets but also tunes pore size distribution and plays a key role in this achievement. We also studied their performance in a photocatalytic hydrogen evolution reaction (HER), achieving a production of 1842 µmol h-1 g-1. Through a profound analysis of all the samples' structure, morphology, and optical properties, we provide physical insight into the improved performance of our optimized porous g-C3N4 sample for both photocatalytic reactions. This research may serve as a guide for improving the photocatalytic activity of porous two-dimensional (2D) semiconductors under visible light irradiation.
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Affiliation(s)
| | - Cristina Rodriguez-Seco
- Centre Énergie Materiaux et Telécommunications, Institut National de la Recherche Scientifique (INRS), Varennes, QC J3X 1P7, Canada; (Z.K.B.); (A.Y.)
| | | | - Dongling Ma
- Centre Énergie Materiaux et Telécommunications, Institut National de la Recherche Scientifique (INRS), Varennes, QC J3X 1P7, Canada; (Z.K.B.); (A.Y.)
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9
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Maged S, El-Borady OM, El-Hosainy H, El-Kemary M. Efficient photocatalytic reduction of p-nitrophenol under visible light irradiation based on Ag NPs loaded brown 2D g-C 3N 4 / g-C 3N 4 QDs nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117909-117922. [PMID: 37874512 PMCID: PMC10682077 DOI: 10.1007/s11356-023-30010-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/17/2023] [Indexed: 10/25/2023]
Abstract
Recently, low-cost graphitic carbon nitride (g-C3N4) revealed high photocatalytic activities and provided solutions to environmental pollution. In this study, we synthesized brown mesoporous 2D g-C3N4 by calcination dicyandiamide with pluronic P123. This is followed by loading of Ag NPs on the prepared 2D g-C3N4 by photodeposition process. After that, a ternary composite 2% Ag/ 2D g-C3N4 / g-C3N4 QDs heterojunction photocatalyst has been successfully prepared. The prepared nanomaterials were comprehensively characterized by various analysis techniques such as XRD, UV-Vis., BET, XPS, SEM, TEM. This new system exhibited a large surface area with porous structure and a wide absorption of visible light. The results verified that Ag NPs decoration enhanced the charge separation of photo-generated carriers of g-C3N4 2D and g-C3N4 QDs, promote significant enhancement in the photocatalytic activity for reduction of p-nitrophenol with a rate constant (k) value of 0.49729 / min in 6 min. This rate is about two-fold higher than that observed for pure g-C3N4 2D and g-C3N4 QDs as well as shows an improvement compared to 2% Ag/ g-C3N4 2D and g-C3N4 2D/ g-C3N4 QDs. The results open the door to design highly efficient 2D/0D nanocomposite photocatalysts for a wide variety of environmental applications.
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Affiliation(s)
- Sandy Maged
- Nano Sensor Group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafr ElSheikh, 33516, Egypt
| | - Ola M El-Borady
- Nano Sensor Group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafr ElSheikh, 33516, Egypt
| | - Hamza El-Hosainy
- Nano Sensor Group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafr ElSheikh, 33516, Egypt
| | - Maged El-Kemary
- Nano Sensor Group, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafr ElSheikh, 33516, Egypt.
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10
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Qi SP, Guo RT, Bi ZX, Zhang ZR, Li CF, Pan WG. Recent Progress of Covalent Organic Frameworks-Based Materials in Photocatalytic Applications: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303632. [PMID: 37541658 DOI: 10.1002/smll.202303632] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/30/2023] [Indexed: 08/06/2023]
Abstract
Covalent organic frameworks (COFs) are one type of porous organic materials linked by covalent bonds. COFs materials exhibit many outstanding characteristics such as high porosity, high chemical and thermal stability, large specific surface area, efficient electron transfer efficiency, and the ability for predesigned structures. These exceptional advantages enable COFs materials to exhibit remarkable performance in photocatalysis. Additionally, the activity of COFs materials as photocatalysts can be significantly upgraded by ion doping and the formation of heterojunctions. This paper summarizes the latest research progress on COF-based materials applied in photocatalytic systems. Initially, typical structures and preparation methods of COFs are analyzed and compared. Moreover, the essential principles of photocatalytic reactions over COFs-based materials and the latest research developments in photocatalytic hydrogen production, CO2 reduction, pollutants elimination, organic transformation, and overall water splitting are indicated. At last, the outlook and challenges of COF-based materials in photocatalysis are discussed. This review is intended to permit instructive guidance for the efficient use of photocatalysis based on COFs in the future.
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Affiliation(s)
- Shi-Peng Qi
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Rui-Tang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai, 200090, P. R. China
| | - Zhe-Xu Bi
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Zhen-Rui Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Chu-Fan Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
| | - Wei-Guo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, P. R. China
- Shanghai Non-Carbon Energy Conversion and Utilization Institute, Shanghai, 200090, P. R. China
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11
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Hou W, Guo H, Wu M, Wang L. Amide Covalent Bonding Engineering in Heterojunction for Efficient Solar-Driven CO 2 Reduction. ACS NANO 2023; 17:20560-20569. [PMID: 37791704 DOI: 10.1021/acsnano.3c07411] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Inefficient charge separation and slow interfacial reaction dynamics significantly hamper the efficiency of photocatalytic CO2 reduction. Herein, a facile EDC/NHS-assisted linking strategy was developed to enhance charge separation in heterojunction photocatalysts. Using this approach, we successfully synthesized amide-bonded carbon quantum dot-g-C3N4 (CQD-CN) heterojunction photocatalysts. The formation of amide covalent bonds between CN and CQDs in the CN-CQD facilitates efficient carrier migration, CO2 adsorption, and activation. Exploiting these advantages, the CN-CQD photocatalysts exhibit high selectivity with CO and CH4 evolution rates of 79.2 and 2.7 μmol g-1 h-1, respectively. These rates are about 1.7 and 3.6 times higher than those of CN@CQD and bulk CN, respectively. Importantly, the CN-CQD photocatalysts demonstrate exceptional stability, even after 12 h of continuous testing. The presence of the COOH* signal is identified as a crucial intermediate species in the conversion of CO2 to CO. This study presents a covalent bonding engineering strategy for developing high-performance heterojunction photocatalysts for efficient solar-driven reduction of CO2.
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Affiliation(s)
- Weidong Hou
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - Huazhang Guo
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - Minghong Wu
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE), School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
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12
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Meng X, Wang L, Wang X, Zhen M, Hu Z, Guo SQ, Shen B. Recent developments and perspectives of MXene-Based heterostructures in photocatalysis. CHEMOSPHERE 2023; 338:139550. [PMID: 37467848 DOI: 10.1016/j.chemosphere.2023.139550] [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: 05/18/2023] [Revised: 07/10/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023]
Abstract
Energy crises and environmental degradation are serious in recent years. Inexhaustible solar energy can be used for photocatalytic hydrogen production or CO2 reduction to reduce CO2 emissions. At present, the development of efficient photocatalysts is imminent. MXene as new two-dimensional (2D) layered material, has been used in various fields in recent years. Based on its high conductivity, adjustable band gap structure and sizable specific surface area, the MXene is beneficial to hasten the separation and reduce the combination of photoelectron-hole pairs in photocatalysis. Nevertheless, the re-stacking of layers because of the strong van der Waals force and hydrogen bonding interactions seriously hinder the development of MXene material as photocatalysts. By contrast, the MXene-based heterostructures composed of MXene nanosheets and other materials not only effectively suppress the re-stacking of layers, but also show the superior synergistic effects in photocatalysis. Herein, the recent progress of the MXene-based heterostructures as photocatalysts in energy and environment fields is summarized in this review. Particularly, new synthetic strategies, morphologies, structures, and mechanisms of MXene-based heterostructures are highlighted in hydrogen production, CO2 reduction, and pollutant degradation. In addition, the structure-activity relationship between the synthesis strategy, components, morphology and structure of MXene-based heterostructures, and their photocatalytic properties are elaborated in detail. Finally, a summary and the perspectives on improving the application study of the heterostructures in photocatalysis are presented.
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Affiliation(s)
- Xinyan Meng
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Lufei Wang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Xiaoyu Wang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Mengmeng Zhen
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China.
| | - Zhenzhong Hu
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China.
| | - Sheng-Qi Guo
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Boxiong Shen
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
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13
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Kayed SF, Almeataq MS. Photocatalytic Activity and Thermal Stability of Hybrid Metal-Polymer-Coordinated Complexes Derived from Gallic Acid and Ethylenediamine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10445-10452. [PMID: 37458686 DOI: 10.1021/acs.langmuir.3c00869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Three new hybrid metal-polymer-coordinated complexes (MPCs) of copper(II), cobalt(II), and nickel(II) ions with an organic polymer derived from gallic acid and ethylenediamine (GAEtH) were synthesized. The structures of GAEtH and MPCs were characterized with FT-IR, ultraviolet (UV)-Vis, 1H and 13C NMR spectroscopy, and elemental and thermogravimetric analysis. The results reveal that the organic polymer GAEtH exhibits an infinite one-dimensional chain structure, while the hybrid MPCs have a double chain structure, with the two chains joined by metal ions. The thermodynamic and kinetic parameters of the thermal degradation stages were determined by the Coats Redfern method, and the photocatalytic behaviors of the MPCs were investigated through the decomposition of methyl orange dye under UV irradiation.
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Affiliation(s)
- Safa Faris Kayed
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
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14
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Ramakrishnan RK, Venkateshaiah A, Grübel K, Kudlek E, Silvestri D, Padil VVT, Ghanbari F, Černík M, Wacławek S. UV-activated persulfates oxidation of anthraquinone dye: Kinetics and ecotoxicological assessment. ENVIRONMENTAL RESEARCH 2023; 229:115910. [PMID: 37062479 DOI: 10.1016/j.envres.2023.115910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 03/11/2023] [Accepted: 04/13/2023] [Indexed: 05/21/2023]
Abstract
Sulfate radical-based advanced oxidation processes (SR-AOPs) are gaining popularity as a feasible alternative for removing recalcitrant pollutants in an aqueous environment. Persulfates, namely peroxydisulfate (PDS) and peroxymonosulfate (PMS) are the most common sulfate radical donors. Persulfates activation by ultraviolet (UV) irradiation is considered feasible due to the high concentration of radicals produced as well as the lack of catalysts leaching. The research focuses on determining the impact of activated PDS and PMS on the degradation of anthraquinone dye, i.e., Acid Blue 129 (AB129). UV-activated PDS and PMS can quickly degrade the AB129 as well as restrict the formation of by-products. This could explain the reduced ecotoxicity levels of the treated water after degradation, using an aquatic plant (Lemna minor) and a crustacean (Daphnia magna). This, on the other hand, can ensure that the sulfate radical-based processes can be an environmentally friendly technology.
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Affiliation(s)
- Rohith K Ramakrishnan
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117, Liberec 1, Czech Republic
| | - Abhilash Venkateshaiah
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117, Liberec 1, Czech Republic
| | - Klaudiusz Grübel
- Department of Environmental Protection and Engineering, University of Bielsko-Biala, Willowa 2, 43-309, Bielsko-Biala, Poland
| | - Edyta Kudlek
- Department of Water and Wastewater Engineering, Silesian University of Technology, Konarskiego 18, 44-100, Gliwice, Poland
| | - Daniele Silvestri
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117, Liberec 1, Czech Republic.
| | - Vinod V T Padil
- Amrita School for Sustainable Development (AST), Amrita Vishwa Vidyapeetham, Amrita University, Amritapuri Campus, Amritapuri, Clappana P. O., Kollam, 690525, Kerala, India
| | - Farshid Ghanbari
- Research Center for Environmental Contaminants (RCEC), Abadan University of Medical Sciences, Abadan, Iran
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117, Liberec 1, Czech Republic
| | - Stanisław Wacławek
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 46117, Liberec 1, Czech Republic.
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15
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Quang HHP, Dinh DA, Dutta V, Chauhan A, Lahiri SK, Gopalakrishnan C, Radhakrishnan A, Batoo KM, Thi LAP. Current approaches, and challenges on identification, remediation and potential risks of emerging plastic contaminants: A review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104193. [PMID: 37348772 DOI: 10.1016/j.etap.2023.104193] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Plastics are widely employed in modern civilization because of their durability, mold ability, and light weight. In the recent decade, micro/nanoplastics research has steadily increased, highlighting its relevance. However, contaminating micro/nanoplastics in marine environments, terrestrial ecosystems, and biological organisms is considered a severe threat to the environmental system. Geographical distribution, migration patterns, etymologies of formation, and ecological ramifications of absorption are just a few topics covered in the scientific literature on environmental issues. Degradable solutions from material science and chemistry are needed to address the micro/nanoplastics problem, primarily to reduce the production of these pollutants and their potential effects. Removing micro/nanoplastics from their discharge points has been a central and effective way to mitigate the adverse pollution effects. In this review, we begin by discussing the hazardous effect on living beings and the identification-characterization of micro/nanoplastics. Then, we provide a summary of the existing degradation strategies, which include bio-degradation and advanced oxidation processes (AOPs), and a detailed discussion of their degradation mechanisms is also represented. Finally, a persuasive summary of the evaluated work and projections for the future of this topic is provided.
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Affiliation(s)
- Huy Hoang Phan Quang
- Faculty of Biology and Environment, Ho Chi Minh City University of Food Industry, 140 Le Trong Tan Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City, Vietnam
| | - Duc Anh Dinh
- VKTech Research Center, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Viet Nam
| | - Vishal Dutta
- University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab.
| | - Ankush Chauhan
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India.
| | - Sudip Kumar Lahiri
- Department of Mechanical & Industrial Engineering, 5 King's College Road, University of Toronto, Canada
| | - C Gopalakrishnan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, 603203, India
| | - Arunkumar Radhakrishnan
- Department of Pharmacology, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
| | - Khalid Mujasam Batoo
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia
| | - Lan-Anh Phan Thi
- VNU Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, Vietnam; Center for Environmental Technology and Sustainable Development (CETASD), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, Vietnam.
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16
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Liu F, You J, Duan C, Li Z, Xu H. Carbonized bacterial cellulose/FeMn composite as efficient catalyst toward contaminant degradation: The crucial role of hydrogen reduction. CHEMOSPHERE 2023; 335:139176. [PMID: 37302494 DOI: 10.1016/j.chemosphere.2023.139176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/15/2023] [Accepted: 06/07/2023] [Indexed: 06/13/2023]
Abstract
The structure especially the active site manipulation of Fenton-like catalysts was essential for the efficient removal of organic contaminants in the aquatic environment. In this study, the carbonized bacterial cellulose/FeMn oxide composite (CBC@FeMnOx) were synthetized and modified by hydrogen (H2) reduction to obtain the carbonized bacterial cellulose/FeMn composite (CBC@FeMn), with emphasis on the processes and mechanisms for atrazine (ATZ) attenuation. The results showed that H2 reduction did not change the microscopic morphology of the composites but destroy the Fe-O and Mn-O structures. Compared with the CBC@FeMnOx composite, the H2 reduction could promote the removal efficiency from 62% to 100% for CBC@FeMn, as well as the enhancement of degradation rate from 0.021 min-1 to 0.085 min-1. The quenching experiments and electron paramagnetic resonance (EPR) displayed that the hydroxyl radicals (•OH) was the major contributor for ATZ degradation. The investigation for Fe and Mn species indicated that H2 reduction could increase the content of Fe(II) and Mn(III) in the catalyst, thus improving the generation of •OH and accelerating the cycle process between Fe(III)/Fe(II). Owing to the excellent reusability and stability, it was indicated that the H2 reduction can be considered as an efficient way to regulate the chemical valence of the catalyst, thus enhancing the removal efficiency of aquatic contaminants.
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Affiliation(s)
- Fei Liu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China
| | - Jikang You
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Chongsen Duan
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Zhe Li
- CAS Key Lab of Reservoir Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
| | - Huacheng Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
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17
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Feng X, Li X, Su B. Photocatalytic degradation performance of antibiotics by peanut shell biochar anchored NiCr-LDH nanocomposites fabricated by one-pot hydrothermal protocol. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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18
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Mei SC, Li L, Huang GX, Pan XQ, Yu HQ. Heterogeneous Fenton water purification catalyzed by iron phosphide (FeP). WATER RESEARCH 2023; 241:120151. [PMID: 37269626 DOI: 10.1016/j.watres.2023.120151] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/05/2023]
Abstract
Heterogeneous Fenton reaction has a great application potential in water purification, but efficient catalysts are still lacking. Iron phosphide (FeP) has a higher activity than the conventional Fe-based catalysts for Fenton reactions, but its ability as a Fenton catalyst to directly activate H2O2 remains unreported. Herein, we demonstrate that the fabricated FeP has a lower electron transfer resistance than the typical conventional Fe-based catalysts, i.e., Fe2O3, Fe3O4, and FeOOH, and thus could active H2O2 to produce hydroxyl radicals more efficiently. In the heterogeneous Fenton reactions for sodium benzoate degradation, the FeP catalyst presents a superior activity with a reaction rate constant more than 20 times those of the other catalysts (i.e., Fe2O3, Fe3O4, and FeOOH). Moreover, it also exhibits a great catalytic activity in the treatment of real water samples and has a good stability in the cycling tests. Furthermore, the FeP could be loaded onto a centimeter-sized porous carbon support and the prepared macro-sized catalyst exhibits an excellent water treatment performance and can be well recycled. This work reveals a great potential of FeP as a catalyst for heterogeneous Fenton reactions and may inspire further development and practical application of highly efficient catalysts for water purification.
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Affiliation(s)
- Shu-Chuan Mei
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Liang Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Gui-Xiang Huang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiao-Qiang Pan
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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19
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Ning W, Li Y, Fang Y, Li F, Pournajaf R, Hamawandi B. Characterization and photocatalytic activity of CoCr 2O 4/g-C 3N 4 nanocomposite for water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27807-3. [PMID: 37233934 DOI: 10.1007/s11356-023-27807-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
One of the materials that has recently been used to remove environmental pollution from industrial effluents with photocatalytic technology is cobalt chromate (CoCr2O4) nanoparticles. An effective way to improve the photocatalytic properties of materials is to composite them with other photocatalysts to prevent recombination of electron-holes and accelerate the transfer of oxidation/reduction agents. Graphitic carbon nitride (g-C3N4) is an excellent choice due to its unique properties. In this research, CoCr2O4 and its composite with g-C3N4 (5, 10, and 15%) were synthesized by polyacrylamide gel method and characterized by X-ray diffraction, scanning electron microscopy, FTIR, UV-Vis spectroscopy techniques. The photocatalytic behavior of synthesized nanoparticles was investigated in the degradation process of methylene blue dye. The results showed that the composite samples have higher efficiency in photocatalytic activity than the pure CoCr2O4 sample. Using CoCr2O4-15 wt%g-C3N4 nanocomposite, after 80 min, methylene blue was completely degraded. The mechanism of degradation by CoCr2O4-g-C3N4 nanocomposite was the superoxide radical produced by the reaction of electrons with oxygen absorbed on the catalyst surface, as well as optically produced holes directly.
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Affiliation(s)
- Weiqing Ning
- College of Urban Construction, Xi'an Siyuan University, Xi'an, 710038, ShaanXi, China.
| | - Yuan Li
- College of Urban Construction, Xi'an Siyuan University, Xi'an, 710038, ShaanXi, China
| | - Yu Fang
- College of Urban Construction, Xi'an Siyuan University, Xi'an, 710038, ShaanXi, China
| | - Fang Li
- College of Urban Construction, Xi'an Siyuan University, Xi'an, 710038, ShaanXi, China
| | - Reza Pournajaf
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Bejan Hamawandi
- Department of Applied Physics, KTH Royal Institute of Technology, 106 91, Stockholm, Sweden
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20
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Chen S, Wei J, Ren X, Song K, Sun J, Bai F, Tian S. Recent Progress in Porphyrin/g-C 3N 4 Composite Photocatalysts for Solar Energy Utilization and Conversion. Molecules 2023; 28:molecules28114283. [PMID: 37298759 DOI: 10.3390/molecules28114283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Transforming solar energy into chemical bonds is a promising and viable way to store solar energy. Porphyrins are natural light-capturing antennas, and graphitic carbon nitride (g-C3N4) is an effective, artificially synthesized organic semiconductor. Their excellent complementarity has led to a growing number of research papers on porphyrin/g-C3N4 hybrids for solar energy utilization. This review highlights the recent progress in porphyrin/g-C3N4 composites, including: (1) porphyrin molecules/g-C3N4 composite photocatalysts connected via noncovalent or covalent interactions, and (2) porphyrin-based nanomaterials/g-C3N4 composite photocatalysts, such as porphyrin-based MOF/g-C3N4, porphyrin-based COF/g-C3N4, and porphyrin-based assembly/g-C3N4 heterojunction nanostructures. Additionally, the review discusses the versatile applications of these composites, including artificial photosynthesis for hydrogen evolution, CO2 reduction, and pollutant degradation. Lastly, critical summaries and perspectives on the challenges and future directions in this field are also provided.
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Affiliation(s)
- Sudi Chen
- Key Laboratory for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative, Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Jiajia Wei
- Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Xitong Ren
- Key Laboratory for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative, Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Keke Song
- Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Jiajie Sun
- School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Feng Bai
- Key Laboratory for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative, Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Shufang Tian
- Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
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21
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Li F, Wang P, Li M, Zhang T, Li Y, Zhan S. Efficient photo-Fenton reaction for tetracycline and antibiotic resistant bacteria removal using hollow Fe-doped In 2O 3 nanotubes: From theoretical research to practical application. WATER RESEARCH 2023; 240:120088. [PMID: 37247435 DOI: 10.1016/j.watres.2023.120088] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/31/2023]
Abstract
The low exposure of active sites and the slow electron transfer rate still restrict the wide application of the photo-Fenton system of Fe-based photocatalyst in practical water treatment. Herein, we prepared a hollow Fe-doped In2O3 nanotube (h-Fe-In2O3) catalyst for activating hydrogen peroxide (H2O2) to remove tetracycline (TC) and antibiotic resistant bacteria (ARB). Incorporation of Fe could shorten the band gap and increase the absorption capacity of visible light. Meanwhile, the increase of electron density at the Fermi level promotes the interfacial electron transport. The large specific surface area of the tubular structure exposes more Fe active site and the Fe-O-In site reduces the energy barrier of H2O2 activation, resulting in more and faster formation of hydroxyl radicals (•OH). After continuous operation for 600 min, the h-Fe-In2O3 reactor still can remove 85% TC and about 3.5 log ARB in secondary effluent, showing good stability and durability for practical wastewater treatment.
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Affiliation(s)
- Fei Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Pengfei Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Mingmei Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Tao Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yi Li
- Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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22
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Chen J, Wu M, Ni J, Ni C. Br vacancy engineering in Cs 3Bi 2Br 9 for photocatalytic NO oxidation under visible light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:56188-56197. [PMID: 36917387 DOI: 10.1007/s11356-023-25993-8] [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: 11/21/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Photocatalysis using the visible light of the sun is an environmentally friendly method of eliminating the NOx pollutant from the ambient air. Although Cs3Bi2Br9, a semiconductor with a band gap of 2.54 eV, may be a strong absorber of visible light, its photocatalysis towards the abatement of NOx is unknown. In this study, Cs3Bi2-xPbxBr9-x (0 ≤ x ≤ 0.0789) are used for the photocatalytic oxidation of NOx. A significant NO oxidation efficiency (80%) is observed over Cs3Bi2-xPbxBr9-x (x = 0.0443) under visible light, which is attributable to the Br vacancy (VBr) brought about by Pb2+ doping. The presence of VBr increased the ionic selectivity of in the oxidized NO. At higher Pb doping level, two HONOs adsorbed on the VBr, linked, and then reduced by hot electrons to produce N2O22-. The di-azo coupling could passivate the activation of NO on the VBr. This work advances the defect engineering of halide for the photo-driving solid-gas reaction in air.
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Affiliation(s)
- Jingwen Chen
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Menglin Wu
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Jiupai Ni
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
- National Base of International S&T Collaboration On Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing, 400716, China
| | - Chengsheng Ni
- College of Resources and Environment, Southwest University, Chongqing, 400715, China.
- National Base of International S&T Collaboration On Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing, 400716, China.
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Wang Y, Liang S, Zuo C, Fang H, Dong G, Sheng X, Wu B, Zhang Y, Zhou Y. Construction of a heterojunction with fast charge transport channels for photocatalytic hydrogen evolution via a synergistic strategy of Co-doping and crystal plane modulation. NANOSCALE 2023; 15:5230-5240. [PMID: 36825559 DOI: 10.1039/d3nr00092c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Carrier spatial separation efficiency and active electron density are the key factors affecting photocatalytic hydrogen evolution activity. Heterojunction catalysts with fast charge separation and directed electron transport systems were successfully prepared by a synergistic modification strategy of transition metal (Co) doping and crystal plane modulation. The optimized electronic structure and enhanced reaction kinetics enabled unidirectional electron transfer. Photocatalytic results show that CdS(002)/Co-C3N4 exhibits remarkable hydrogen evolution activity (991.2 μmol h-1 g-1) in the absence of a co-catalyst, which is 37.0 and 3.4 times higher than that of C3N4 (26.8 μmol h-1 g-1) and Co-C3N4 (294.6 μmol h-1 g-1), respectively. Density functional theory (DFT) calculations indicate that the enhanced catalytic activity of CdS(002)/Co-C3N4 is attributed to the reduced electron-hole recombination rate and the increased electron density at the active site. This work provides a new idea for the design of photocatalysts with directed charge transport channels from the perspective of re-optimizing heterojunctions.
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Affiliation(s)
- Yanyun Wang
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Shuang Liang
- Department of Chemistry, Department of Chemical Engineering and Materials Science, University of Minnesota 55455-0431, USA
| | - Changjiang Zuo
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Hao Fang
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Guomeng Dong
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Xiaoli Sheng
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Bo Wu
- Multiscale Computational Materials Facility, Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350100, China.
| | - Yiwei Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
| | - Yuming Zhou
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China.
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