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Chen X, Chen J, Li N, Li J, He J, Xu S, Zhu Y, Yao L, Lai Y, Zhu R. Ag 3PO 4-anchored La 2Ti 2O 7 nanorod as a Z-Scheme heterostructure composite with boosted photogenerated carrier separation and enhanced photocatalytic performance under natural sunlight. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121322. [PMID: 36813103 DOI: 10.1016/j.envpol.2023.121322] [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: 12/05/2022] [Revised: 02/13/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
Developing wide spectra-responsive photocatalysts has attracted considerable attention in the photocatalytic technology to achieve excellent catalytic activity. Ag3PO4, with strong response to light spectra shorter than 530 nm, shows extremely outstanding photocatalytic oxidation ability. Unfortunately, the photocorrosion of Ag3PO4 is still the biggest obstacle to its application. Herein, the La2Ti2O7 nanorod was used to anchor Ag3PO4 nanoparticles in this study, and a novel Z-Scheme La2Ti2O7/Ag3PO4 heterostructure composite was constructed. Remarkably, the composite showed strong responsive to most of the spectra in natural sunlight. The Ag0 formed in-situ acted as the recombination center of photogenerated carriers, which promoted their efficient separation and contributed to the improved photocatalytic performance of the heterostructure. When the mass ratio of Ag3PO4 in the La2Ti2O7/Ag3PO4 catalyst was 50%, the degradation rate constant of Rhodamine B (RhB), methyl orange (MO), chloroquine phosphate (CQ), tetracycline (TC), and phenol under natural sunlight irradiation were 0.5923, 0.4463, 0.1399, 0.0493, and 0.0096 min-1, respectively. Furthermore, the photocorrosion of the composite was greatly inhibited, 76.49% of CQ and 83.96% of RhB were still degraded after four cycles. Besides, the holes and O2•- played a significant role in RhB degradation, and it included multiple mechanisms of deethylation, deamination, decarboxylation, and cleavage of ring-structures. Moreover, the treated solution can also show safety to the water receiving environment. Overall, the synthesized Z-Scheme La2Ti2O7/Ag3PO4 composite exhibited immense potential for removing various organic pollutants through photocatalytic technology under natural sunlight irradiation.
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Affiliation(s)
| | | | - Ning Li
- Foshan University, Foshan 528225, China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510610, China
| | - Jiesen Li
- Foshan University, Foshan 528225, China; Department of Research and Development, Guangzhou Ginpie Technology Co., Ltd., Guangzhou 510670, China
| | - Juhua He
- Foshan University, Foshan 528225, China; Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong 999077, China
| | - Song Xu
- Foshan University, Foshan 528225, China
| | - Yanping Zhu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Liang Yao
- Foshan University, Foshan 528225, China
| | - Yiqi Lai
- Foshan University, Foshan 528225, China
| | - Runliang Zhu
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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Chen Z, Li X, Wu Y, Duan A, Wang D, Yang Q, Fan Y. Achieving simultaneous hydrogen evolution and organic pollutants degradation through the modification of Ag3PO4 using Cs2AgBiBr6 quantum dots and graphene hydrogel. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Green synthesis of stable S-scheme C-ZnO nanosheet/Ag3PO4 heterostructure towards extremely efficient visible-light catalytic degradation of ciprofloxacin. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Visible-Light-Active Black TiO 2 Nanoparticles with Efficient Photocatalytic Performance for Degradation of Pharmaceuticals. NANOMATERIALS 2022; 12:nano12152563. [PMID: 35893534 PMCID: PMC9330099 DOI: 10.3390/nano12152563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 07/22/2022] [Accepted: 07/24/2022] [Indexed: 11/16/2022]
Abstract
Special attention has recently been paid to surface-defective titanium dioxide and black TiO2 with advanced optical, electrical, and photocatalytic properties. Synthesis of these materials for photodegradation and mineralization of persistent organic pollutants in water, especially under visible radiation, presents interest from scientific and application points of view. Chemical reduction by heating a TiO2 and NaBH4 mixture at 350 °C successfully introduced Ti3+ defects and oxygen vacancies at the surface of TiO2, with an increase in the photocatalytic degradation of amoxicillin—an antibiotic that is present in wastewater due to its intense use in human and animal medicine. Three TiO2 samples were prepared at different annealing temperatures to control the ratio between anatase and rutile and were subjected to chemical reduction. Electron paramagnetic resonance investigations showed that the formation of surface Ti3+ defects in a high concentration occurred mainly in the anatase sample annealed at 400 °C, contributing to the bandgap reduction from 3.32 eV to 2.92 eV. The reduced band gap enhances visible light absorption and the efficiency of photocatalysis. The nanoparticles of ~90 m2/g specific surface area and 12 nm average size exhibit ~100% efficiency in the degradation of amoxicillin under simulated solar irradiation compared with pristine TiO2. Mineralization of amoxicillin and by-products was over 75% after 48 h irradiation for the anatase sample, where the Ti3+ defects were present in a higher concentration at the catalyst’s surface.
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Bortolotto V, Djellabi R, Giordana A, Cerrato G, Michele AD, Bianchi CL. Photocatalytic behaviour of Ag3PO4, Fe3O4 and Ag3PO4/Fe3O4 heterojunction towards the removal of organic pollutants and Cr(VI) from water: Efficiency and light-corrosion deactivation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Soni V, Singh P, Phan Quang HH, Parwaz Khan AA, Bajpai A, Van Le Q, Thakur VK, Thakur S, Nguyen VH, Raizada P. Emerging architecture titanium carbide (Ti 3C 2T x) MXene based photocatalyst toward degradation of hazardous pollutants: Recent progress and perspectives. CHEMOSPHERE 2022; 293:133541. [PMID: 34998850 DOI: 10.1016/j.chemosphere.2022.133541] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/24/2021] [Accepted: 01/03/2022] [Indexed: 05/24/2023]
Abstract
MXenes family has aroused marvelous consideration as a frontier photoactive candidate for solar energy transformation and environmental remediation. 2D Ti3C2 exhibit a unique layered microstructure, large surface functional groups (-F, -OH, -O), substantial sorption selectivity, superior reduction efficiency, and electrical conductivity. Electronically conductive Ti3C2Tx with tunable energy band gap (0.92-1.75eV) makes it one of the most potential photoactive materials for photodegradation. The present review paper aims to design cost-effective heterojunctions and Schottky junctions of Ti3C2 with transition metal oxides, sulfides, g-C3N4, and other organic frameworks. The discussion mainly involves different aspects related to its tunable electronic structure, stability problems, and surface morphology control. In addition, the advantages of Ti3C2 in fabricating highly efficient Ti3C2 based catalytic junctions exhibiting suppressed charge carrier recombination are discussed with particular emphasis on their adsorption and redox properties for the removal of toxic dyes, heavy metal ions, and various pharmaceuticals. Finally, current challenges and research directions are outlined and prospected for the future development of Ti3C2 based photocatalytic systems.
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Affiliation(s)
- Vatika Soni
- School of Advanced Chemical Sciences, Shoolini University, Solan HP, 173229, India
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan HP, 173229, India.
| | - Huy Hoang Phan Quang
- Faculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, Ho Chi Minh City, Viet Nam
| | - Aftab Aslam Parwaz Khan
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; Chemistry Department, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Archana Bajpai
- Advanced Materials and Processes Research Institute, Bhopal, M.P, India
| | - Quyet Van Le
- Department of Materials Science and Engineering, Korea University, 145, Anam-ro Seongbuk-gu, Seoul, 02841, South Korea
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Centre Scotland's Rural College (SRUC), Edinburgh, United Kingdom; School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun, 248007, India
| | - Sourbh Thakur
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland
| | - Van-Huy Nguyen
- Faculty of Biotechnology, Binh Duong University, Thu Dau Mot, Viet Nam.
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Shoolini University, Solan HP, 173229, India.
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Hasija V, Patial S, Raizada P, Aslam Parwaz Khan A, Asiri AM, Van Le Q, Nguyen VH, Singh P. Covalent organic frameworks promoted single metal atom catalysis: Strategies and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214298] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Current status on designing of dual Z-scheme photocatalysts for energy and environmental applications. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gu JX, Chen H, Ren Y, Gu ZG, Li G, Xu WJ, Yang XY, Wen JX, Wu JT, Jin HG. A Novel Cerium(IV)-Based Metal-Organic Framework for CO 2 Chemical Fixation and Photocatalytic Overall Water Splitting. CHEMSUSCHEM 2022; 15:e202102368. [PMID: 34766733 DOI: 10.1002/cssc.202102368] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Cerium (IV)-based metal-organic frameworks (MOFs) are highly desirable due to their unique potential in fields such as redox catalysis and photocatalysis. However, due to the high reduction potential of CeIV species in solution, it is still a great challenge to synthesize CeIV -MOFs with novel structures, which are extremely dominated by the hexanuclear Ce-O cluster inorganic building units (IBUs). Herein, a Ce-O IBU chain containing CeIV -MOF, CSUST-3 (CSUST: Changsha University of Science and Technology), was successfully prepared using the kinetic stabilization study of UiO-66(Ce)-NDC (H2 NDC=2,6-naphthalenedicarboxylic acid). Furthermore, owing to the superior redox activity, Lewis acidity and semiconductor-like behavior owing to Ce4+ , activated CSUST-3 was demonstrated to be an excellent catalyst for CO2 chemical fixation. One-pot synthesis of styrene carbonate from styrene and CO2 was achieved under mild conditions (1 atm CO2 , 80 °C, and solvent free). Moreover, activated CSUST-3 was shown to be a remarkable co-catalyst-free photocatalyst for overall water splitting (OWS), rendering 59 μmol g-1 h-1 of H2 and 22 μmol g-1 h-1 of O2 under simulated sunlight irradiation (Na2 S-Na2 SO3 as sacrificial agent).
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Affiliation(s)
- Jia-Xin Gu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
| | - Hao Chen
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yu Ren
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
| | - Zhi-Gang Gu
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guangli Li
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, P. R. China
| | - Wen-Jie Xu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
| | - Xin-Yu Yang
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
| | - Jian-Xin Wen
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
| | - Jing-Tao Wu
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, P. R. China
| | - Hong-Guang Jin
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China
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