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El-Shamy OAA, Selim H, Elkholy AS, Kamal RS, Saleh NM, Abd El-Sattar NEA. Preparation of thiourea derivative incorporated Ag 3PO 4 core shell for enhancement of photocatalytic degradation performance of organic dye under visible radiation light. Sci Rep 2024; 14:12671. [PMID: 38830937 PMCID: PMC11148051 DOI: 10.1038/s41598-024-62608-9] [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: 12/14/2023] [Accepted: 05/20/2024] [Indexed: 06/05/2024] Open
Abstract
Photocatalysis is a promising technique to reduce hazardous organic pollutants using semiconductors under visible light. However, previous studies have been concerned with the behavior of silver phosphate (Ag3PO4) as n-type semiconductors, and the problem of their instability is still under investigation. Herein, 4,4'-(((oxalylbis(azanediyl)) bis(carbonothioyl)) bis(azanediyl)) dibenzoic acid is synthesized by green method and used to enhance the photocatalytic behavior for Ag3PO4. The incorporated Ag3PO4 core-shell is prepared and characterized via XRD, FT-IR, Raman, TEM and BET. Besides, the thermal stability of the prepared core shell was investigated via TGA and DSC measurements. The optical properties and the energy band gap are determined using photoluminescence and DRS measurements. The photodegradation of methylene blue in the presence of the synthesized Ag3PO4 core-shell under visible light is examined using UV/Vis measurements. The effect of initial dye concentration and contact time are studied. In addition, the kinetic behavior of the selected dye during the photodegradation process shows a pseudo-first order reaction with rate constant of 0.015 min-1 for ZAg. The reusability of the Ag3PO4 core shell is evaluated, and the efficiency changed from 96.76 to 94.02% after three cycles, indicating efficient photocatalytic behavior with excellent stability.
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Affiliation(s)
- Omnia A A El-Shamy
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
| | - Hanaa Selim
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt
| | - Ahmed S Elkholy
- Main Defense Chemical Laboratory (M.D.C.L.), Almaza, Cairo, Egypt
| | - Rasha S Kamal
- Department of Petroleum Applications, Egyptian Petroleum Research Institute, P.O. Box 11727, Nasr City, Cairo, Egypt
| | - Nashwa M Saleh
- Department of Chemistry, Faculty of Science (Girls), Al-Azhar University, Yousef Abbas Str., P.O. Box: 11754, Nasr City, Cairo, Egypt
| | - Nour E A Abd El-Sattar
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
- Basic & Medical Sciences Department, Faculty of Dentistry, Alryada University for Science & Technology, Sadat City, Egypt
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2
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Shkir M, Aldirham SH, AlFaify S, Ali AM. A novel BiOBr/rGO photocatalysts for degradation of organic and antibiotic pollutants under visible light irradiation: Tetracycline degradation pathways, kinetics, and mechanism insight. CHEMOSPHERE 2024; 357:141934. [PMID: 38615957 DOI: 10.1016/j.chemosphere.2024.141934] [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: 08/27/2023] [Revised: 03/08/2024] [Accepted: 04/05/2024] [Indexed: 04/16/2024]
Abstract
In this study, the BiOBr/rGO nanocomposite photocatalysts are fabricated by a facile solvothermal method. The BiOBr growth on reduced graphene oxide (rGO) sheet could improve BiOBr's photocatalytic activity by increasing its adsorption ability, surface area, and charge carriers' separation efficiency. The prepared nanocomposites were characterized by XRD, Raman, FESEM, EDS, XPS, and UV-visible DRS. The BiOBr/rGO (BRG) nanocomposites showed improved photocatalytic activity for the photodegradation of Rhodamine B (RhB) dye and Tetracycline (TC) under visible light irradiation. Rhodamine B and tetracycline degradation efficiency were about 96% and 73% within 120 min under visible light irradiation. The PL analysis indicates that BiOBr/rGO nanocomposite exhibited maximum separation efficiency of photoinduced charge carriers. The trapping test confirmed that O2- and h+ are significant active photodegradation species. The GC-MS spectra detected the two plausible transformation routes of tetracycline degradation. The current work presented a low-cost and facile approach for fabricating Bi-based composites.
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Affiliation(s)
- Mohd Shkir
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia.
| | - S H Aldirham
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - S AlFaify
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Atif M Ali
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
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3
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Satheesh D, Baskar L, Jayavelu Y, Dekshinamoorthy A, Sakthinathan VR, Daniel PJ, Vijayaraghavan S, Krishnan K, Rajendran R, Pachaiappan R, Manavalan K. Efficient electrochemical hydrogen evolution activity of nanostructured Ag 3PO 4/MoS 2 heterogeneous composite catalyst. CHEMOSPHERE 2024; 351:141220. [PMID: 38224749 DOI: 10.1016/j.chemosphere.2024.141220] [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: 09/21/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
Hydrogen (H2) generation by electrochemical water splitting is a key technique for sustainable energy applications. Two-dimensional (2D) transition-metal dichalcogenide (MoS2) and silver phosphate (Ag3PO4) possess excellent electrochemical hydrogen evolution reaction (HER) properties when they are combined together as a composite rather than individuals. Reports examining the HER activity by using Ag3PO4, especially, in combination with the 2D layered MoS2 are limited in literature. The weight fraction of MoS2 in Ag3PO4 is optimized for 1, 3, and 5 wt%. The Ag3PO4/1 wt % MoS2 combination exhibits enhanced HER activity with least overpotential of 235 mV among the other samples in the acidic medium. The synergistic effect of optimal nano-scale 2D layered MoS2 structure and Ag3PO4 is essential for creating higher electrochemical active surface area of 217 mF/cm2, and hence this leads to faster reaction kinetics in the HER. This work suggests the advantages of Ag3PO4/1 wt % MoS2 heterogeneous composite catalyst for electrochemical analysis and HER indicating lower resistivity and low Tafel slope value (179 mV/dec) among the prepared catalysts making it a promising candidate for its use in practical energy applications.
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Affiliation(s)
- Divyadharshini Satheesh
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Leena Baskar
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Yuvashree Jayavelu
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Amuthan Dekshinamoorthy
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Vishwath Rishaban Sakthinathan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Paul Joseph Daniel
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Saranyan Vijayaraghavan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Karthik Krishnan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Rathika Rajendran
- Department of Physics, St. Theresa's Arts & Science College for Women, Tharangambadi, Mayiladuthurai District, Tamilnadu, 609313, India
| | - Rekha Pachaiappan
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Mecánica, Universidad de Tarapacá, Avda. General Velasquez 1775 , Arica, Chile
| | - Kovendhan Manavalan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India.
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4
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Botella R, Cao W, Celis J, Fernández-Catalá J, Greco R, Lu L, Pankratova V, Temerov F. Activating two-dimensional semiconductors for photocatalysis: a cross-dimensional strategy. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:141501. [PMID: 38086082 DOI: 10.1088/1361-648x/ad14c8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024]
Abstract
The emerging two-dimensional (2D) semiconductors substantially extend materials bases for versatile applications such as semiconductor photocatalysis demanding semiconductive matrices and large surface areas. The dimensionality, while endowing 2D semiconductors the unique properties to host photocatalytic functionality of pollutant removal and hydrogen evolution, hurdles the activation paths to form heterogenous photocatalysts where the photochemical processes are normally superior over these on the mono-compositional counterparts. In this perspective, we present a cross-dimensional strategy to employ thenD (n= 0-2) clusters or nanomaterials as activation partners to boost the photocatalytic activities of the 2D semiconductors. The formation principles of heterogenous photocatalysts are illustrated specifically for the 2D matrices, followed by selection criteria of them among the vast 2D database. The computer investigations are illustrated in the density functional theory route and machine learning benefitted from the vast samples in the 2D library. Synthetic realizations and characterizations of the 2D heterogenous systems are introduced with an emphasis on chemical methods and advanced techniques to understand materials and mechanistic studies. The perspective outlooks cross-dimensional activation strategies of the 2D materials for other applications such as CO2removal, and materials matrices in other dimensions which may inspire incoming research within these fields.
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Affiliation(s)
- R Botella
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - W Cao
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - J Celis
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - J Fernández-Catalá
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - R Greco
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - L Lu
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - V Pankratova
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
| | - F Temerov
- Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, Oulu, FIN-90014, Finland
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5
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Li C, Zhao Y, Song Y, Qiu X, Wang S, Sun P. Optimization of Electron Transport Pathway: A Novel Strategy to Solve the Photocorrosion of Ag-Based Photocatalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:18626-18635. [PMID: 36853926 DOI: 10.1021/acs.est.2c07012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Although Ag-containing photocatalysts exhibit excellent photocatalytic ability, they present great challenges owing to their photocorrosion and ease of reduction. Herein, an electron acceptor platform of Ag2O/La(OH)3/polyacrylonitrile (PAN) fiber was constructed using a heterojunction strategy and electrospinning technology to develop a novel photocatalytic membrane with a redesigned electron transport pathway. Computational and experimental results demonstrate that the optimized electron transport pathway included intercrystal electron transfer induced by the La-O bond between Ag2O and La(OH)3 as well as electron transfer between the catalyst crystal and electrophilic PAN membrane interface. In addition, the photocatalytic performance of the Ag2O/La(OH)3 membrane for tetracycline (TC) removal was still above 97% after five photocatalytic reaction cycles. Furthermore, the carrier life was greatly extended. Mechanistic study revealed that photogenerated holes on the Ag2O/La(OH)3 membrane were the main reactive species in TC degradation. Overall, this study proposes a novel electron transport pathway strategy that effectively solves the problems of photocatalyst photocorrosion and structural instability.
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Affiliation(s)
- Chenxi Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yingxin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yanxing Song
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xiaojie Qiu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Shuaize Wang
- Hongzhiwei Technology (Shanghai) Co. Ltd., Shanghai 200000, China
| | - Peizhe Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
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6
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Shkir M, AlAbdulaal TH, Ubaidullah M, Reddy Minnam Reddy V. Novel Bi 2WO 6/MWCNT nanohybrids synthesis for high-performance photocatalytic activity of ciprofloxacin degradation under simulated sunlight irradiation. CHEMOSPHERE 2023; 338:139432. [PMID: 37419154 DOI: 10.1016/j.chemosphere.2023.139432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/19/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
In this research, novel Bi2WO6/MWCNT nanohybrids were synthesized via a cost-effective hydrothermal route. The photocatalytic performance of these specimens was tested through the photodegradation of Ciprofloxacin (CIP) under simulated sunlight. Various physicochemical techniques systematically characterized the prepared pure, Bi2WO6/MWCNT nanohybrid photocatalysts. The XRD and Raman spectra revealed the structural/phase properties of Bi2WO6/MWCNT nanohybrids. FESEM and TEM pictures revealed the attachment and distribution of plate-like Bi2WO6 nanoparticles along the nanotubes. The optical absorption and bandgap energy of Bi2WO6 was affected by the addition of MWCNT, which was analyzed by UV-DRS spectroscopy. The introduction of MWCNT reduces the bandgap value of Bi2WO6 from 2.76 to 2.46 eV. The BWM-10 nanohybrid showed superior photocatalytic activity for CIP photodegradation; 91.3% of CIP was degraded under sunlight irradiation. The PL and transient photocurrent test confirm that photoinduced charge separation efficiency is better in BWM-10 nanohybrids. The scavenger test indicates that h+ & •O2 have mainly contributed to the CIP degradation process. Furthermore, the BWM-10 catalyst demonstrated outstanding reusability and firmness in four successive cycles. It is anticipated that the Bi2WO6/MWCNT nanohybrids will be employed as photocatalysts for environmental remediation and energy conversion. This research presents a novel technique for developing an effective photocatalyst for pollutant degradation.
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Affiliation(s)
- Mohd Shkir
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia.
| | - T H AlAbdulaal
- Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Mohd Ubaidullah
- Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia; Division of Research and Development, Lovely Professional University, Phagwara, Punjab, 144411, India
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7
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Mahadadalkar MA, Park N, Yusuf M, Nagappan S, Nallal M, Park KH. Electrospun Fe doped TiO 2 fiber photocatalyst for efficient wastewater treatment. CHEMOSPHERE 2023; 330:138599. [PMID: 37030342 DOI: 10.1016/j.chemosphere.2023.138599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/23/2023] [Accepted: 04/03/2023] [Indexed: 05/14/2023]
Abstract
Water pollution caused by industrial wastewater is the most critical environmental problem in the world. Synthetic dyes are commonly used in various industries such as paper, plastic, printing, leather and textile for their ability to impact color. Complex composition, high toxicity and low biodegradability of dyes make them difficult to degrade which causes a substantial negative impact on overall ecosystems. To address this issue we synthesized TiO2 fibers photocatalyst using the combination of sol-gel and electrospinning techniques to be used in the degradation of dyes which causes water pollution. We doped Fe in TiO2 fibers to enhance the absorption in the visible region of the solar spectrum which will also help to increase the degradation efficiency. As synthesized pristine TiO2 fibers and Fe doped TiO2 fibers were analyzed using different characterization techniques such as X-ray diffraction, Scanning electron microscopy, Transmission electron microscopy, UV-Visible spectroscopy, X-ray photoelectron spectroscopy. 5% Fe doped TiO2 fibers show excellent photocatalytic degradation activity for rhodamine B (99% degradation in 120 min). It can be utilized for degradation of other dye pollutants such as methylene blue, Congo red and methyl orange. It shows good photocatalytic activity (97%) even after 5 cycles of reuse. The radical trapping experiments reveals that holes, •O2- and •OH has a significant contribution in the photocatalytic degradation. Due to the robust fibrous nature of 5FeTOF the process of collection of photocatalysts was simple and without loss as compared to powder photocatalysts. This justifies our selection of electrospinning method of synthesis of 5FeTOF which is also useful for large scale production.
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Affiliation(s)
| | - NaHyun Park
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Mohammad Yusuf
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Saravanan Nagappan
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Muthuchamy Nallal
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Kang Hyun Park
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea.
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8
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Li L, Feng H, Dong Z, Yang T, Xue S. Indium selenide/silver phosphate hollow microsphere S-scheme heterojunctions for photocatalytic hydrogen production with simultaneous degradation of tetracycline. J Colloid Interface Sci 2023; 649:10-21. [PMID: 37331106 DOI: 10.1016/j.jcis.2023.06.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/31/2023] [Accepted: 06/11/2023] [Indexed: 06/20/2023]
Abstract
Designing heterojunction photocatalysts with strong interfacial interactions is an effective way to reduce the recombination of photogenerated charge carriers. Here, silver phosphate (Ag3PO4) nanoparticles are coupled with hollow flower-like indium selenide (In2Se3) microspheres by a facile Ostwald ripening and in-situ growth method, resulting in the construction of In2Se3/Ag3PO4 hollow microsphere step-scheme (S-scheme) heterojunction with a large contact interface. The flower-like In2Se3 with hollow and porous structure provides a large specific surface area and numerous active sites for photocatalytic reactions to take place. The photocatalytic activity was tested by measuring the hydrogen evolution from antibiotic wastewater, and the H2 evolution rate of In2Se3/Ag3PO4 reached 4206.4 µmol g-1h-1 under visible light, which is approximately 2.8 times greater than that of In2Se3. In addition, the amount of tetracycline (TC) degradation when it was used as a sacrificial agent is about 54.4% after 1 h. On the one hand, Se-P chemical bonds act as electron transfer channels in the S-scheme heterojunctions, which can facilitate the migration and separation of photogenerated charge carriers. On the other hand, the S-scheme heterojunctions can retain the useful holes and electrons with higher redox capacities, which is very favorable for the generation of more •OH radicals and the photocatalytic activity is greatly enhanced. This work provides an alternative design approach for photocatalysts toward hydrogen evolution in antibiotic wastewater.
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Affiliation(s)
- Lingwei Li
- College of Science, Donghua University, Shanghai 201620, China
| | - Hange Feng
- College of Science, Donghua University, Shanghai 201620, China; College of Information Science and Technology, Donghua University, Shanghai 201620, China
| | - Zibo Dong
- College of Science, Donghua University, Shanghai 201620, China
| | - Tiantian Yang
- College of Science, Donghua University, Shanghai 201620, China
| | - Shaolin Xue
- College of Science, Donghua University, Shanghai 201620, China.
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Lian X, Huang Z, Zhang Y, Chen Z, Meidl P, Yi X, Xu B. Constructing Z-scheme 1D/2D heterojunction of ZnIn 2S 4 nanosheets decorated WO 3 nanorods to enhance Cr(VI) photocatalytic reduction and rhodamine B degradation. CHEMOSPHERE 2023; 313:137351. [PMID: 36574576 DOI: 10.1016/j.chemosphere.2022.137351] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/01/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Photocatalysis has been vastly employed as a feasible and efficient strategy for the removal of environmental pollutants. In this study, a well-designed core-shell heterojunction of WO3 decorated with ZnIn2S4 nanosheets were fabricated under mild in-situ conditions, and fabricated processes were systematically investigated with different fabrication durations. The coupling of WO3 and ZnIn2S4 (ZIS) resulted in a Z-scheme mechanism for charge carrier transfer, holding the respective redox capacity. The as-prepared 1D/2D WO3@ZIS heterostructure displayed the highest removal efficiency within 30 min for 25 mg L-1 Cr(VI), 89.3 and 29.7 times higher than pure WO3 and ZnIn2S4. 1D/2D WO3@ZIS remained excellently stable after 5 cycling experiments. Moreover, 40 mg L-1 RhB could be degraded within 50 min. The broad and short photogenerated electron transportation path is guaranteed by the 1D/2D and Z-scheme charge separation mechanism. It efficiently prevented photo-generated charge carriers from recombination, resulting in a longer carrier lifespan and better photocurrent responses than that of pure ones. This photocatalytic system showed promising results and also provides a framework for an efficient system for photocatalysis with potential for environmental application.
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Affiliation(s)
- Xinyi Lian
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Zongyi Huang
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Yuqi Zhang
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Zhou Chen
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China
| | - Peter Meidl
- Systematic Botany and Mycology, Ludwig-Maximilians Universität München, Munich, 80638, Germany
| | - Xiaodong Yi
- College of Chemistry and Chemical Engineering, College of Materials, Xiamen University, Xiamen, 361005, PR China.
| | - Baile Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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Singh PP, Sinha S, Pandey G, Srivastava V. Molybdenum disulfide (MoS 2) based photoredox catalysis in chemical transformations. RSC Adv 2022; 12:29826-29839. [PMID: 36321108 PMCID: PMC9578401 DOI: 10.1039/d2ra05695j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022] Open
Abstract
Photoredox catalysis has been explored for chemical reactions by irradiation of photoactive catalysts with visible light, under mild and environmentally benign conditions. Furthermore, this methodology permits the activation of abundant chemicals into valuable products through novel mechanisms that are otherwise inaccessible. In this context, MoS2 has drawn attention due to its excellent solar spectral response and its notable electrical, optical, mechanical and magnetic properties. MoS2 has a number of characteristic properties like tunable band gap, enhanced absorption of visible light, a layered structure, efficient photon electron conversion, good photostability, non-toxic nature and quantum confinement effects that make it an ideal photocatalyst and co-catalyst for chemical transformations. Recently, MoS2 has gained synthetic utility in chemical transformations. In this review, we will discuss MoS2 properties, structure, synthesis techniques, and photochemistry along with modifications of MoS2 to enhance its photocatalytic activity with a focus on its applications and future challenges.
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Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research Prayagraj 211002 Uttar Pradesh India
| | - Geetika Pandey
- Department of Physics, United University Prayagraj 211012 Uttar Pradesh India
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj-211002 Uttar Pradesh India
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11
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Gao H, Liu H, Lin C, Sha L, Yang Y, Zhuang G, Wang X, Zhan W, Han X. Immobilization of AgCl/Pd Heterojunctions on Nitrogen‐Doped Carbon Nanotubes: Interfacial Design‐Induced Electronic Regulation Enhances Photocatalytic Activity. Chemistry 2022; 28:e202202433. [DOI: 10.1002/chem.202202433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Hao Gao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Huade Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Cunbiao Lin
- Laboratory of Molecular Catalysis & Computational Materials Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Linna Sha
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yun Yang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Guilin Zhuang
- Laboratory of Molecular Catalysis & Computational Materials Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Xiaojun Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wenwen Zhan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Xiguang Han
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Department of Chemistry School of Chemistry and Chemical Engineering Jiangsu Normal University Xuzhou 221116 P. R. China
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12
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Wang A, Guo S, Zheng Z, Wang H, Song X, Zhu H, Zeng Y, Lam J, Qiu R, Yan K. Highly dispersed Ag and g-C3N4 quantum dots co-decorated 3D hierarchical Fe3O4 hollow microspheres for solar-light-driven pharmaceutical pollutants degradation in natural water matrix. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128905. [PMID: 35452983 DOI: 10.1016/j.jhazmat.2022.128905] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/17/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
The efficient removal of pharmaceutical pollutants presents a great challenge for the conventional sewage treatment system. Herein, we document the nanosheets assembled 3D hierarchical Fe3O4 hollow microspheres co-modified by Ag and g-C3N4 quantum dots (Ag/CNQDs@Fe3O4) for efficient degradation of two classic anticancer drugs, i.e., capecitabine (CAP) and 5-fluorouracil (5-FLU) under visible light in 1 h. Benefiting from the unique hierarchically hollow structure, the intrinsic strengths of each component and their interactions, synergistic reinforcing mechanism is constructed, furnishing more accessible reactive places, promoting the diffusion of pollutants/oxidants, improving charge separation ability, and raising light utilization rate. Consequently, Ag/CNQDs@Fe3O4 can not only show superior photocatalytic properties, but also greatly boost PMS activation to yield sufficient oxidative radicals. More notably, the studied system also features excellent stability and strong tolerance to real water samples, and maintains appreciable performance even under natural sunlight illumination. The predominant active species, possible ADs decomposition pathways, and underlying reaction mechanism for the Ag/CNQDs@Fe3O4/PMS/vis system are thoroughly explored. This work presents significant advancement in enabling an integrated technology of PMS and photocatalysis to realize its great potential in environment restoration.
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Affiliation(s)
- Anqi Wang
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Shuya Guo
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhikeng Zheng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Hui Wang
- Institute of Chemistry, Humboldt University of Berlin, Berlin 12489, Germany
| | - Xiaolong Song
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Haida Zhu
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Yiqiu Zeng
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Jason Lam
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, 999077, Hong Kong Special Administrative Region of China
| | - Rongliang Qiu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Kai Yan
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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13
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Rahman A, Jennings JR, Tan AL, Khan MM. Molybdenum Disulfide-Based Nanomaterials for Visible-Light-Induced Photocatalysis. ACS OMEGA 2022; 7:22089-22110. [PMID: 35811905 PMCID: PMC9260757 DOI: 10.1021/acsomega.2c01314] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/08/2022] [Indexed: 05/08/2023]
Abstract
Visible-light-responsive photocatalytic materials have a multitude of important applications, ranging from energy conversion and storage to industrial waste treatment. Molybdenum disulfide (MoS2) and its variants exhibit high photocatalytic activity under irradiation by visible light as well as good stability and recyclability, which are desirable for all photocatalytic applications. MoS2-based materials have been widely applied in various fields such as wastewater treatment, environmental remediation, and organic transformation reactions because of their excellent physicochemical properties. The present review focuses on the fundamental properties of MoS2, recent developments and remaining challenges, and key strategies for tackling issues related to the utilization of MoS2 in photocatalysis. The application of MoS2-based materials in visible-light-induced catalytic reactions for the treatment of diverse kinds of pollutants including industrial, environmental, pharmaceutical, and agricultural waste are also critically discussed. The review concludes by highlighting the prospects of MoS2 for use in various established and emerging areas of photocatalysis.
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Affiliation(s)
- Ashmalina Rahman
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - James Robert Jennings
- Applied
Physics, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Ai Ling Tan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Mohammad Mansoob Khan
- Chemical
Sciences, Faculty of Science, Universiti
Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- Optoelectronic
Device Research Group, Universiti Brunei
Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
- ;
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14
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Novel MOF-Based Photocatalyst AgBr/AgCl@ZIF-8 with Enhanced Photocatalytic Degradation and Antibacterial Properties. NANOMATERIALS 2022; 12:nano12111946. [PMID: 35683799 PMCID: PMC9182966 DOI: 10.3390/nano12111946] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023]
Abstract
A novel visible light-driven AgBr/AgCl@ZIF-8 catalyst was synthesized by a simple and rapid method. The composition and structure of the photocatalyst were characterized by XRD, SEM, UV-DRS, and XPS. It could be observed that the 2-methylimidazole zinc salt (ZIF-8) exhibited the rhombic dodecahedron morphology with the AgCl and AgBr particles evenly distributed around it. The composite photocatalyst AgBr/AgCl@ZIF-8 showed good photocatalytic degradation and antibacterial properties. The degradation rate of RhB solution was 98%, with 60 min of irradiation of visible light, and almost all P. aeruginosaudomonas aeruginosa (P. aeruginosa), Staphylococcus aureus (S. aureus), and Escherichia coli (E. coli) were inactivated under the irradiation of 90 min. In addition, the prepared catalyst had excellent stability and reusability. Based on the free radical capture experiment, ·O2− and h+ were believed to be the main active substances, and possible photocatalytic degradation and sterilization mechanisms of AgBr/AgCl@ZIF-8 were proposed.
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15
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NiO-Ni foam supported Ag3PO4 for efficient photoelectrocatalytic degradation of oil pollutant in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Lakshman C, Hari Prakash S, Mohana Roopan S. Materials based on molybdenum disulfide as a catalyst in organic transformations: An overview. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2048859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Chetan Lakshman
- Department of Chemistry, Chemistry of Heterocycles and Natural Product Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamilnadu, India
| | - Sankar Hari Prakash
- Department of Chemistry, Chemistry of Heterocycles and Natural Product Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamilnadu, India
| | - Selvaraj Mohana Roopan
- Department of Chemistry, Chemistry of Heterocycles and Natural Product Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamilnadu, India
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17
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Ma S, Yang Y, Li J, Mei Y, Zhu Y, Wu J, Liu L, Yao T, Yang Q. Z-scheme Fe 2(MoO 4) 3/Ag/Ag 3PO 4 heterojunction with enhanced degradation rate by in-situ generated H 2O 2: Turning waste (H 2O 2) into wealth ( •OH). J Colloid Interface Sci 2022; 606:1800-1810. [PMID: 34507171 DOI: 10.1016/j.jcis.2021.08.134] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 02/04/2023]
Abstract
Ag3PO4-based photocatalysts have been deeply studied in environmental remediation; however, two problems limited their further application: photocorrosion and quenching effect by in-situ generated H2O2. To addressed these two questions simultaneously, Fe2(MoO4)3 was coupled with Ag3PO4 to construct Z-scheme Fe2(MoO4)3/Ag/Ag3PO4 heterojunction driven by internal-electric-field. The rhodamine B degradation rate of heterojunction was 254 and 7.0 times higher than those of Fe2(MoO4)3 and Ag3PO4, respectively. The outstanding photoactivity was due to the high visible-light harvest, low interface resistance, high separation efficiency of charge carriers, long lifetime of hole (h+) and electron (e-), well-preserved oxidation potential of h+, and especially photocatalytic produced H2O2 inside the system. The in-situ generated H2O2 was fully activated to be •OH on the Fe2(MoO4)3 surface via a Fenton reaction, leading to the elimination of quenching effect on h+ and e-, and generation of more •OH. Additionally, in Z-scheme heterojunction, e- transferred from Ag3PO4 to Fe2(MoO4)3, avoiding the accumulation on Ag3PO4 surface, and hence suppressing the photocorrosion. As a result, 91.2% of degradation efficiency remained after 5 cycles. This paper provides a new method to simultaneously increase the degradation rate by utilizing the in-situ generated H2O2 and improve the stability of Ag3PO4 via constructing a Z-scheme heterojunction.
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Affiliation(s)
- Shouchun Ma
- State Key Lab Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Yang Yang
- State Key Lab Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Jiaqi Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Yuqing Mei
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Yufeng Zhu
- State Key Lab Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Jie Wu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Li Liu
- State Key Lab Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
| | - Tongjie Yao
- State Key Lab Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
| | - Qingfeng Yang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China.
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18
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Liu X, Xu J, Ma L, Liu Y, Hu L. Nano-flower S-scheme heterojunction NiAl-LDH/MoS2 for enhancing photocatalytic hydrogen production. NEW J CHEM 2022. [DOI: 10.1039/d1nj04728k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The construction of heterojunctions can effectively improve the electron transport rate and photocatalytic activity.
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Affiliation(s)
- Xinyu Liu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - Jing Xu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
- Key Laboratory of Chemical Engineering and Technology (North Minzu University), State Ethnic Affairs Commission, Yinchuan 750021, P. R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology Autonomous Region, North Minzu University, Yinchuan 750021, P. R. China
| | - Lijun Ma
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - Ye Liu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - Linying Hu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
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19
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Xu J, Liu X, Hu L, Li Z, Ma Y. A novel type-II NiCo-LDH/CeO 2 heterojunction for highly efficient photocatalytic H 2 production. NEW J CHEM 2022. [DOI: 10.1039/d2nj02848d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The study of environmentally friendly semiconductor photocatalysts has important practical significance for efficient photocatalytic hydrogen evolution.
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Affiliation(s)
- Jing Xu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P. R. China
- Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, P. R. China
| | - Xinyu Liu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - LinYing Hu
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - Zezhong Li
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
| | - Yue Ma
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P. R. China
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20
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Liu L, Huang J, Yu H, Wan J, Liu L, Yi K, Zhang W, Zhang C. Construction of MoO 3 nanopaticles /g-C 3N 4 nanosheets 0D/2D heterojuntion photocatalysts for enhanced photocatalytic degradation of antibiotic pollutant. CHEMOSPHERE 2021; 282:131049. [PMID: 34098307 DOI: 10.1016/j.chemosphere.2021.131049] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 05/03/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
A new type of 0D-2D Z-scheme heterojunction photocatalyst (MoO3/g-C3N4) was successfully prepared via simple hydrothermal calcination method. The catalytic activities of MoO3/g-C3N4 was evaluated by the degradation effect of tetracycline. The results indicated that the 0D-2D MoO3/g-C3N4 Z-scheme heterojunction was significantly better than that of original g-C3N4. Especially, the optimal 0.5 wt% MoO3/g-C3N4 could reach 85.9% removal efficiency within 100 min under visible light irradiation (λ > 420 nm), and its degradation rate constant was 2.3 times higher than that of g-C3N4·In addition, the effects of real water matrix, natural sunlight irradiation on tetracycline removal were examined. Reactive-species-trapping experiments show that both photo-generated •O2- and h+ are the main active species in the photocatalytic process. Besides, the results of •O2- and •OH detection further indicated that the yield amount of •O2- and •OH in MoO3/g-C3N4 case showed enhancement when compared with g-C3N4. Moreover, the quite stable crystal structure and excellent recycling ability endowed the MoO3/g-C3N4 composite with a great potential for applying in photocatalytic fields.
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Affiliation(s)
- Lishuo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China.
| | - Hanbo Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Lianyu Liu
- College of Environment and Resources, Shanxi University, Taiyuan, 030000, China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Chenyu Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
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21
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Yue YY, Zhao LY, Han DA, Wang L, Wang HY, Gao BR, Sun HB. Trion dynamics and charge photogeneration in MoS 2 nanosheets prepared by liquid phase exfoliation. Phys Chem Chem Phys 2021; 23:22430-22436. [PMID: 34585679 DOI: 10.1039/d1cp02455h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since excitonic quasiparticles, including excitons, trions and charges, have a great influence on the photoelectric characteristics of two-dimensional (2D) transition metal dichalcogenides (TMDs), systematic explorations of the trion dynamics and charge photogeneration in 2D TMDs are important for their future optoelectronic applications. Here, broadband femtosecond transient absorption spectroscopic experiments are performed first to investigate the peak shifting and broadening kinetics in MoS2 nanosheets in solution prepared by liquid phase exfoliation (LPE-MoS2, ∼9 layers, 9L), which reveal that the binding energies for the A-, B-, and C-exciton states are ∼77 meV, ∼76 meV, and -70 meV (the energy difference between free charges and excitons; the negative sign for C-excitons means a spontaneous dissociation nature in band-nesting regions), respectively. Then, the trion dynamics and charge photogeneration in LPE-MoS2 nanosheets have been studied in detail, demonstrating that they are comparable to those in chemical vapor deposition grown MoS2 films (1L-, 3L- and 7L-MoS2). These experimental results suggest that LPE-TMD nanosheets also have the potential for use in charge-related optoelectronic devices based on 2D TMDs.
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Affiliation(s)
- Yuan-Yuan Yue
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China. .,School of Management Science and Information Engineering, Jilin University of Finance and Economics, Changchun 130117, China
| | - Le-Yi Zhao
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
| | - Dan-Ao Han
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
| | - Lei Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
| | - Hai-Yu Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
| | - Bing-Rong Gao
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
| | - Hong-Bo Sun
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Haidian, Beijing 100084, China
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22
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Dadigala R, Bandi R, Alle M, Gangapuram BR, Guttena V, Kim JC. In-situ fabrication of novel flower like MoS 2/CoTiO 3 nanorod heterostructures for the recyclable degradation of ciprofloxacin and bisphenol A under sunlight. CHEMOSPHERE 2021; 281:130822. [PMID: 34010718 DOI: 10.1016/j.chemosphere.2021.130822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/02/2021] [Accepted: 05/07/2021] [Indexed: 05/14/2023]
Abstract
Effectual degradation of toxic water contaminants is a crucial step in water purification and designing an efficient semiconductor based hybrid structure photocatalyst is a good approach to achieve this. Benefiting from the combination of semiconductors, a series of novel visible-light active flower-like MoS2/CoTiO3 nanorod heterostructures with excellent morphological contact interface were prepared through a facile in-situ hydrothermal process. These heterostructures were well characterized and demonstrated high photocatalytic performance for ciprofloxacin (CIP) and bisphenol A (BPA) under sunlight irradiation. Compared to pristine CoTiO3 and MoS2, the optimal catalyst (5 wt% MoS2/CoTiO3) presented 39.97 and 22.32 times higher activity for CIP degradation and 26.85 and 15.66 times higher activity for BPA degradation, respectively. This improved activity can be accounted for the effective interfacial contact which promotes the efficient charge carriers separation and reduce its recombination. The catalyst exhibited decent stability and was potentially reused for five cycles without significant loss in activity. Furthermore, based on active species scavenging experiments the plausible photodegradation mechanism is discussed in detail.
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Affiliation(s)
- Ramakrishna Dadigala
- Department of Chemistry, Osmania University, Hyderabad, Telangana state, 500007, India
| | - Rajkumar Bandi
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Madhusudhan Alle
- Institute of Forest Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Bhagavanth Reddy Gangapuram
- Department of Chemistry, PG Center Wanaparthy, Palamuru University, Mahabub Nagar, Telangana State, 509001, India
| | - Veerabhadram Guttena
- Department of Chemistry, Osmania University, Hyderabad, Telangana state, 500007, India.
| | - Jin-Chul Kim
- Department of Biomedical Science & Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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23
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Yang S, Ke X, Chen Q, Huang R, Wang W, Wang K, Shu K, Tu C, Zheng Z, Luo D, Huang H, Zhang M. In-situ growth behavior of FAPbBr3 on two-dimensional materials for photocatalytic reaction to controllable products. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Amedlous A, Majdoub M, Amaterz E, Anfar Z, Benlhachemi A. Synergistic effect of g-C3N4 nanosheets/Ag3PO4 microcubes as efficient n-p-type heterostructure based photoanode for photoelectrocatalytic dye degradation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113127] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Solid-State Synthesis of Direct Z-Scheme Cu2O/WO3 Nanocomposites with Enhanced Visible-Light Photocatalytic Performance. Catalysts 2021. [DOI: 10.3390/catal11020293] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this paper, we report the preparation of visible-light active direct Z-scheme Cu2O/WO3 nanocomposite photocatalyst by a solid-state reaction avoiding the otherwise inevitable formation of CuWO4 phase in wet syntheses. Structure, morphology, and thermal and optical properties of prepared WO3 nanoplatelets decorated by Cu2O were investigated by XRD, Raman spectroscopy, SEM/TEM, combined thermogravimetric (TG)/differential scanning calorimetry (DSC) analysis, and UV–VIS spectroscopy. The photocatalytic performance of the prepared samples under UV and visible light was studied through monitoring discoloration of methylene blue under illumination by selected wavelengths, allowing for the distinguishing between the contributions of the two semiconductive components. Experimental results showed that the decoration of WO3 nanoplates by Cu2O nanoparticles led to an improvement in photocatalytic performance, regardless of used LED (Light-Emitting Diode) wavelength, even at low concentrations. By using scavengers selectively blocking reactive species involved in the discoloration reaction, we determined that the Cu2O/WO3 nanocomposite exhibited the characteristics of direct Z-scheme-type photocatalyst.
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26
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Yuan Y, Guo RT, Hong LF, Ji XY, Li ZS, Lin ZD, Pan WG. Recent advances and perspectives of MoS2-based materials for photocatalytic dyes degradation: A review. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125836] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Zhang S, Duan S, Chen G, Meng S, Zheng X, Fan Y, Fu X, Chen S. MoS2/Zn3In2S6 composite photocatalysts for enhancement of visible light-driven hydrogen production from formic acid. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63584-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Facile synthesis of ZnO/GO/Ag3PO4 heterojunction photocatalyst with excellent photodegradation activity for tetracycline hydrochloride under visible light. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125118] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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29
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Wang H, Zhang B, Tang Y, Wang C, Zhao F, Zeng B. Recent advances in bismuth oxyhalide-based functional materials for photoelectrochemical sensing. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116020] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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30
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Li J, Liu X, Zhang J. Smart Assembly of Sulfide Heterojunction Photocatalysts with Well-Defined Interfaces for Direct Z-Scheme Water Splitting under Visible Light. CHEMSUSCHEM 2020; 13:2996-3004. [PMID: 32189466 DOI: 10.1002/cssc.202000344] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/29/2020] [Indexed: 06/10/2023]
Abstract
A Z-scheme photocatalytic water-splitting system is an effective approach to integrate the advantages both hydrogen- and oxygen-evolution photocatalysts. The interfacial properties of the heterojunctions have a great influence on the efficiency through the crystal orientation and the charge kinetics. In this study, a general chemical vapor deposition process and a gentle cation-exchange method were combined to assemble Z-scheme photocatalysts between CdS and MnS. As a result of the well-defined heterojunction interfaces and distinctive structural benefits, without cocatalysts, the 1 D CdS/MnS hybrid photocatalyst exhibited a significantly increased photocatalytic H2 evolution rate of 1595 μmol h-1 g-1 (apparent quantum efficiency of 22.6 % at λ=420 nm), which is over 10.5 times higher than that of CdS. Moreover, a better photocatalytic stability is demonstrated over particulate (42 h cycling measurement) and photoelectrochemical (3000 min continuous measurement) systems. Overall, this work provides a unique experimental insight into high-quality heterojunction interface design and new Z-scheme photocatalyst synthesis.
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Affiliation(s)
- Jin Li
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xianming Liu
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Jian Zhang
- New Energy Technology Engineering Lab of Jiangsu Province, School of Science, Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
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Xue W, Huang D, Wen X, Chen S, Cheng M, Deng R, Li B, Yang Y, Liu X. Silver-based semiconductor Z-scheme photocatalytic systems for environmental purification. JOURNAL OF HAZARDOUS MATERIALS 2020; 390:122128. [PMID: 32006844 DOI: 10.1016/j.jhazmat.2020.122128] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/28/2019] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
Silver-based semiconductor photocatalysts are promising materials for solving environmental and energy issues due to their strong optical absorption, excellent quantum efficiency and photoelectrochemical properties. However, the uncontrollable photocorrosion and high use cost of single silver-based semiconductor photocatalysts limit its practical application. The construction of Z-scheme photocatalytic systems that mimic natural photosynthesis can not only enhance the photocatalytic activity of silver-based semiconductor photocatalysts, but also improve their stability and reduce the use costs. This critical review concisely highlights the basic principles of Z-scheme photocatalytic systems, and discusses the construction of silver-based semiconductor Z-scheme photocatalytic systems and the roles of metallic Ag in there and summarizes the synthesis methods of silver-based semiconductor Z-scheme photocatalytic systems. Then, a series of the solar-driven applications are elaborated, including organic pollutants degradation, hydrogen production, and carbon dioxide reduction. Meanwhile, the mechanism and difficult level of these photocatalytic reactions are also described. Besides, metal organic frameworks (MOFs) as a novel type of photocatalysts have attracted growing attention. The novel combination of silver-based semiconductors with typical photoactive MOFs is highlighted based on the Z-scheme photocatalytic systems. Eventually, the future challenges and prospects in the development of silver-based semiconductor Z-scheme photocatalytic systems are presented.
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Affiliation(s)
- Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China.
| | - Xiaoju Wen
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Xiwang Road, Yancheng, Jiangsu Province, 224051, PR China
| | - Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Rui Deng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Bo Li
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Yang Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
| | - Xigui Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Hunan University, Changsha, 410082, PR China
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Wan J, Zhang Y, Wang R, Liu L, Liu E, Fan J, Fu F. Effective charge kinetics steering in surface plasmons coupled two-dimensional chemical Au/Bi 2WO 6-MoS 2 heterojunction for superior photocatalytic detoxification performance. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121484. [PMID: 31653409 DOI: 10.1016/j.jhazmat.2019.121484] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Developing and designing a rational heterojunction with efficient charge kinetics properties have been a research hotspot for improving photocatalytic performance. Herein, a surface plasmons coupled two-dimensional chemical Au/Bi2WO6-MoS2 heterojunction was synthesized. In thus a system, Au nanoparticles are tightly attached to the sides of Bi2WO6 nanosheets, conducting a HEI effect with additional visible light response to inject "hot electrons" into Bi2WO6, resulting in additional charge generation. Meanwhile, few-layer MoS2 nanosheets were chemically assembled onto ultrathin Bi2WO6 nanosheets via interfacial SO bonds to form a intimate 2D-2D nanojunction, the separated and injected electrons on the surface of Bi2WO6 were further directional transfer to MoS2 nanosheets through SO bonds for detoxification of heavy metal ions Cr(VI), and the corresponding holes left on Bi2WO6 nanosheets were applied for simultaneous degradation of tetracycline antibiotic. The photocatalytic detoxification activity of Au/Bi2WO6-MoS2 was nearly 4.84, 3.47 and 1.90 times higher than that of pristine Bi2WO6, Au/Bi2WO6 and Bi2WO6-MoS2 composites, which could be ascribed to the effective charge kinetics steering and well manipulation of charge flow by virtue of the rational structural and compositional features. This work provides a new perspective for the construction of high-activity detoxification photocatalysts through steering charge kinetics.
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Affiliation(s)
- Jun Wan
- College of Chemistry & Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, 716000, PR China
| | - Yue Zhang
- College of Chemistry & Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, 716000, PR China
| | - Ruimiao Wang
- School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China
| | - Lin Liu
- College of Chemistry & Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, 716000, PR China.
| | - Enzhou Liu
- School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China
| | - Jun Fan
- School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China.
| | - Feng Fu
- College of Chemistry & Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, 716000, PR China
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Zhang R, Zhang T, Cai Y, Zhu X, Han Q, Li Y, Liu Y. Reduced Graphene Oxide-Doped Ag3PO4 Nanostructure as a High Efficiency Photocatalyst Under Visible Light. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-019-01214-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shi H, Fan J, Zhao Y, Hu X, Zhang X, Tang Z. Visible light driven CuBi 2O 4/Bi 2MoO 6 p-n heterojunction with enhanced photocatalytic inactivation of E. coli and mechanism insight. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:121006. [PMID: 31442686 DOI: 10.1016/j.jhazmat.2019.121006] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 05/21/2023]
Abstract
Here, a novel CuBi2O4/Bi2MoO6 (CBO/BMO) p-n heterojunction was fabricated and exhibited markedly improved photocatalytic inactivation capacity of E. coli cells under visible light excitation (λ > 420 nm) compared with pure CuBi2O4 and Bi2MoO6. The CBO/BMO-0.5 hybrid displayed the highest photoinactivation ability which could completely inactivate the E. coli cellswithin 4 h. The mechanism of photocatalytic disinfection towards E. coli of CBO/BMO heterojunctions was attributed to the disruption of cell-membrane, leakage and damage of cellular content including total protein and DNA as verified with SEM, fluorescence-base dead/live stain, sodium dodecyl sulfate polyacrylamide gel electropheresis (SDS-PAGE) and agarose gel electrophoresis (AGE). Additionally, the scavenge experiments showed that the reactive species h+, e- and •O2-play the predominant role in the photocatalytic system of CBO/BMO hybrids. The improved photocatalytic activity of CBO/BMO composites was mainly attributed to the promotion of spatial separation and migration rate of photoproduced electron-hole pairs, enhancement of visible light absorption and more generation of reactive species (•O2-) on the interface of catalyst and water which was demonstrated by nitroblue tetrazolium (NBT) and EPR. Our work indicated that construction of CuBi2O4/Bi2MoO6 p-n heterostructure photocatalyst is a promising environmental friendly alternative method to deal with the biohazards of pathogenic microorganisms.
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Affiliation(s)
- Huanxian Shi
- School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China
| | - Jun Fan
- College of Food Science and Engineering, Northwest University, Xi'an 710069, PR China.
| | - Yanyan Zhao
- School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China
| | - Xiaoyun Hu
- School of Physics, Northwest University, Xi'an, 710069, PR China
| | - Xu Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, PR China
| | - Zhishu Tang
- Shaanxi University of Chinese Medicine/Shaanxi collaborative Innovation Center of Idustrialization of Tradition Chinese Medicine Resources, Xianyang 712083, PR China.
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Zhang Y, Yang X, Zhang P, Liu D, Wang Y, Jin Z, Mamba BB, Kuvarega AT, Gui J. One-step hydrothermal fabrication of SrMoO 4/MoS 2 composites with strong interfacial contacts for efficient photoreduction removal of Cr( vi). CrystEngComm 2020. [DOI: 10.1039/d0ce00314j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In situ growth of MoS2 nanosheets on bulk SrMoO4 has been achieved by a one-step hydrothermal strategy. Strong interfacial contacts in 8%-SrMoO4/MoS2 composites endow them with superior photocatalytic performance.
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Affiliation(s)
- Yiming Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, and
- School of Material Science and Engineering
- Tiangong University
- Tianjin 300387
- China
| | - Xiaoyan Yang
- School of Chemistry and Chemical Engineering
- Shangqiu Normal University
- Shangqiu 476000
- China
| | - Peng Zhang
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering
- School of Chemistry and Chemical Engineering
- Tiangong University
- Tianjin 300387
- China
| | - Dan Liu
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering
- School of Chemistry and Chemical Engineering
- Tiangong University
- Tianjin 300387
- China
| | - Yonglin Wang
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering
- School of Chemistry and Chemical Engineering
- Tiangong University
- Tianjin 300387
- China
| | - Zhouzheng Jin
- State Key Laboratory of Separation Membranes and Membrane Processes, and
- School of Material Science and Engineering
- Tiangong University
- Tianjin 300387
- China
| | - Bhekie B. Mamba
- University of South Africa, College of Science, Engineering and Technology
- Nanotechnology and Water Sustainability Research Unit
- Florida
- South Africa
| | - Alex T. Kuvarega
- University of South Africa, College of Science, Engineering and Technology
- Nanotechnology and Water Sustainability Research Unit
- Florida
- South Africa
| | - Jianzhou Gui
- State Key Laboratory of Separation Membranes and Membrane Processes, and
- School of Material Science and Engineering
- Tiangong University
- Tianjin 300387
- China
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36
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Li A, Liu Y, Xu X, Zhang Y, Si Z, Wu X, Ran R, Weng D. MOF-derived (MoS2, γ-Fe2O3)/graphene Z-scheme photocatalysts with excellent activity for oxygen evolution under visible light irradiation. RSC Adv 2020; 10:17154-17162. [PMID: 35521476 PMCID: PMC9053387 DOI: 10.1039/d0ra02083d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/17/2020] [Indexed: 11/21/2022] Open
Abstract
Constructing Z-scheme heterojunctions is considered as an effective strategy to obtain catalysts of high efficiency in electron–hole separation in photocatalysis. Unfortunately, suitable heterojunctions are difficult to fabricate because the direct interaction between two semiconductors may lead to unpredictable negative effects such as electron scattering or electron trapping due to the existence of defects which causes the formation of new substances. Furthermore, the van der Waals contact between two semiconductors also results in bad electron diffusion. In this work, a MOF-derived carbon material as a Z-scheme photocatalyst was synthesized via one-step thermal treatment of MoS2 dots @Fe-MOF (MIL-101). Under visible light irradiation, the well-constructed Z-scheme (MoS2, γ-Fe2O3)/graphene photocatalyst shows 2-fold photocatalytic oxygen evolution activity (4400 μmol g−1 h−1) compared to that of γ-Fe2O3/graphene (2053 μmol g−1 h−1). Based on ultraviolet photoelectron spectrometry (UPS), Mott–Schottky plot, photocurrent and photoluminescence spectroscopy (PL) results, the photo-induced electrons from the conduction band of γ-Fe2O3 could transport quickly to the valence band of MoS2via highly conductive graphene as an electron transport channel, which could significantly enhance the electron–hole separation efficiency as well as photocatalytic performance. The heterojunction between MoS2 and γ-Fe2O3 was constructed via linking by in situ formed graphene, which resulted in a good photocatalyst for the oxygen evolution reaction, showing O2 evolution activity of 4400 μmol g−1 h−1.![]()
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Affiliation(s)
- Ang Li
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Yuxiang Liu
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Xuejun Xu
- College of Materials Science and Energy Engineering
- Foshan University
- Foshan City
- China
| | - Yuanyuan Zhang
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Zhichun Si
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
| | - Xiaodong Wu
- The Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing City
- China
| | - Rui Ran
- The Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing City
- China
| | - Duan Weng
- Tsinghua Shenzhen International Graduate School
- Tsinghua University
- Shenzhen City
- China
- The Key Laboratory of Advanced Materials of Ministry of Education
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Zhang S, Yu T, Wen H, Guo R, Xu J, Zhong R, Li X, You J. Enhanced photocatalytic activity of a visible-light-driven ternary WO3/Ag/Ag3PO4 heterojunction: a discussion on electron transfer mechanisms. RSC Adv 2020; 10:16892-16903. [PMID: 35693915 PMCID: PMC9122569 DOI: 10.1039/d0ra01731k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 04/22/2020] [Indexed: 11/26/2022] Open
Abstract
WO3/Ag3PO4 with different weight ratios were prepared by ultrasonic assisted two-step deposition method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence spectroscopy (PL) and transmission electron microscopy (TEM). The photocatalytic activities of all samples were evaluated by the degradation of rhodamine B (RhB) under visible light irradiation. WA-60 shows the highest photocatalytic activity in the WA-x series composite, while the photocatalytic activity of WAA-60 is the best among all samples. The free radical trapping experiments show that photogenerated holes (h+) are the main active species. The Ag nanoparticles produced by the decomposition of Ag3PO4 are located at the interface of Ag3PO4/WO3, which promotes the separation efficiency of photogenerated electrons and holes. To further explain the photocatalytic mechanism, electrochemical and physical tests are introduced to explore the flow of electrons inside the catalyst. WO3/Ag3PO4 with different weight ratios were prepared by ultrasonic assisted two-step deposition method.![]()
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Affiliation(s)
- Shengqi Zhang
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
| | - Tao Yu
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
| | - Hui Wen
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
| | - Rui Guo
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
| | - Juanjuan Xu
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
- School of Resources and Materials
| | - Ruixia Zhong
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
- School of Resources and Materials
| | - Xian Li
- School of Materials Science and Engineering
- Northeastern University
- Shenyang 110819
- China
- School of Resources and Materials
| | - Junhua You
- School of Materials Science and Engineering
- Shenyang University of Technology
- Shenyang 110870
- China
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38
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Ren Y, Zhan W, Tang L, Zheng H, Liu H, Tang K. Constructing a ternary H2SrTa2O7/g-C3N4/Ag3PO4 heterojunction based on cascade electron transfer with enhanced visible light photocatalytic activity. CrystEngComm 2020. [DOI: 10.1039/d0ce00998a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A ternary H2SrTa2O7/g-C3N4/Ag3PO4 heterojunction was fabricated for the first time and displayed excellent visible light photocatalytic activity.
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Affiliation(s)
- Yi Ren
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Wenqi Zhan
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Lulu Tang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Hui Zheng
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Huimin Liu
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Kaibin Tang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
- Hefei National Laboratory for Physical Sciences at the Microscale
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39
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Guan G, Han M. Functionalized Hybridization of 2D Nanomaterials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901837. [PMID: 31832321 PMCID: PMC6891915 DOI: 10.1002/advs.201901837] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/14/2019] [Indexed: 05/06/2023]
Abstract
The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene-analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in-plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post-graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.
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Affiliation(s)
- Guijian Guan
- Institute of Molecular PlusTianjin UniversityTianjin300072P. R. China
| | - Ming‐Yong Han
- Institute of Materials Research and EngineeringA*STAR2 Fusionopolis WaySingapore138634Singapore
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40
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Xia X, Song M, Wang H, Zhang X, Sui N, Zhang Q, Colvin VL, Yu WW. Latest progress in constructing solid-state Z scheme photocatalysts for water splitting. NANOSCALE 2019; 11:11071-11082. [PMID: 31149691 DOI: 10.1039/c9nr03218e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Artificial Z scheme photocatalysis has been considered as a promising strategy for producing the clean energy source of hydrogen gas. The core of the Z scheme is a two-step excitation process in a tandem structured photosystem aiming to satisfy both the criteria of wide range solar spectrum absorption and strong thermodynamic driving force for photolysis reactions. Therefore, efficient connection and matching between the two photosystems is the key to improve the photocatalytic activity. Recently, new progress has been achieved concerning the principles and applications of state-of-the-art solid-state Z schematic systems to enhance the photocatalytic efficiency and repress competitive reactions. This review summarizes the latest approaches to all-solid-state Z schemes for photocatalytic water splitting, including new tandem structures, new morphologies, and new connection modes to improve light absorption as well as carrier transportation. The challenges for developing novel high performance Z scheme photocatalysts are also discussed.
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Affiliation(s)
- Xinyuan Xia
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Mengjiao Song
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Hua Wang
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Xiangtong Zhang
- Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Ning Sui
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Qingbo Zhang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Vicki L Colvin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - William W Yu
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
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41
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Liang J, Ding C, Liu J, Chen T, Peng W, Li Y, Zhang F, Fan X. Heterostructure engineering of Co-doped MoS 2 coupled with Mo 2CT x MXene for enhanced hydrogen evolution in alkaline media. NANOSCALE 2019; 11:10992-11000. [PMID: 31140532 DOI: 10.1039/c9nr02085c] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The hydrogen evolution reaction (HER) in alkaline media is key for the cathodic reaction of electrochemical water splitting, but it suffers sluggish kinetics due to the slow water dissociation process. Here, we present a simple strategy to enhance the HER activity in alkaline media by engineering Co-doped MoS2 coupled with Mo2CTx MXene. The improved HER activity might be ascribed to the synergistic regulation of water dissociation sites and electronic conductivity. Co doping could effectively regulate the electronic structure of MoS2 and further improve the intrinsic activity of the catalyst. Mo2CTx MXene served as both the active and conductive substrate to facilitate electron transfer. As a result, the Co-MoS2/Mo2CTx nanohybrids showed dramatically enhanced HER performance with a low overpotential of 112 mV at a current density of 10 mA cm-2 and exhibited excellent long-term stability in alkaline media.
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Affiliation(s)
- Junmei Liang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China.
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Dabiri M, Nikbakht R, Movahed SK. Structuring Ru nanoparticles on magnetic nitrogen doped carbon induces excellent photocatalytic activity for oxidation of alcohols under visible light. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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43
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Wang R, Qiu G, Xiao Y, Tao X, Peng W, Li B. Optimal construction of WO3·H2O/Pd/CdS ternary Z-scheme photocatalyst with remarkably enhanced performance for oxidative coupling of benzylamines. J Catal 2019. [DOI: 10.1016/j.jcat.2019.05.016] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Huang D, Chen S, Zeng G, Gong X, Zhou C, Cheng M, Xue W, Yan X, Li J. Artificial Z-scheme photocatalytic system: What have been done and where to go? Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.12.013] [Citation(s) in RCA: 197] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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45
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Zhang Y, Yang X, Zhang P, Liu D, Zou Z, Tan R, Gui J. Morphology-tunable & template-free fabrication of MoS2 nanostructures with enhanced photoreduction activities for Cr(VI). J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Jiang D, Wen B, Zhang Y, Jin Y, Li D, Chen M. MoS2/SnNb2O6 2D/2D nanosheet heterojunctions with enhanced interfacial charge separation for boosting photocatalytic hydrogen evolution. J Colloid Interface Sci 2019; 536:1-8. [DOI: 10.1016/j.jcis.2018.10.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 01/20/2023]
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Low J, Dai B, Tong T, Jiang C, Yu J. In Situ Irradiated X-Ray Photoelectron Spectroscopy Investigation on a Direct Z-Scheme TiO 2 /CdS Composite Film Photocatalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1802981. [PMID: 30345599 DOI: 10.1002/adma.201802981] [Citation(s) in RCA: 297] [Impact Index Per Article: 59.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/10/2018] [Indexed: 06/08/2023]
Abstract
Inspired by nature, artificial photosynthesis through the construction of direct Z-scheme photocatalysts is extensively studied for sustainable solar fuel production due to the effectiveness in enhancing photoconversion efficiency. However, there is still a lack of thorough understanding and direct evidence for the direct Z-scheme charge transfer in these photocatalysts. Herein, a recyclable direct Z-scheme composite film composed of titanium dioxide and cadmium sulfide (TiO2 /CdS) is prepared for high-efficiency photocatalytic carbon dioxide (CO2 ) reduction. In situ irradiated X-ray photoelectron spectroscopy (ISI-XPS) confirms the direct Z-scheme charge-carrier migration pathway in the photocatalytic system. Furthermore, density functional theory simulation identifies the intrinsic cause for the formation of the direct Z-scheme heterojunction between the TiO2 and the CdS. Thanks to the significantly enhanced redox abilities of the charge carriers in the direct Z-scheme system, the photocatalytic CO2 reduction performance of the optimized TiO2 /CdS is 3.5, 5.4, and 6.3 times higher than that of CdS, TiO2 , and commercial TiO2 (P25), respectively, in terms of methane production. This work is a valuable guideline in preparation of highly efficient recyclable nanocomposite for photoconversion applications.
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Affiliation(s)
- Jingxiang Low
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Benzhe Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Tong Tong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Chuanjia Jiang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin, 300350, China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Hao H, Lang X. Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations. ChemCatChem 2019. [DOI: 10.1002/cctc.201801773] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huimin Hao
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Xianjun Lang
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
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Duan Z, Deng L, Shi Z, Zhang H, Zeng H, Crittenden J. In situ growth of Ag-SnO2 quantum dots on silver phosphate for photocatalytic degradation of carbamazepine: Performance, mechanism and intermediates toxicity assessment. J Colloid Interface Sci 2019; 534:270-278. [DOI: 10.1016/j.jcis.2018.09.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 01/19/2023]
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50
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Zhou M, Yang P, Wang S, Luo Z, Huang C, Wang X. Structure-Mediated Charge Separation in Boron Carbon Nitride for Enhanced Photocatalytic Oxidation of Alcohol. CHEMSUSCHEM 2018; 11:3949-3955. [PMID: 30112850 DOI: 10.1002/cssc.201801827] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Boron carbon nitride (BCN) is a promising earth-abundant photocatalyst for solar energy conversion. However, the photocatalytic activities of BCN materials remain moderate because of the fast electron-hole recombination. Herein, an ordered BCN structure is fabricated by a facile one-step thermal treatment strategy. The ordered structure of BCN is directly evident from powder X-ray diffraction and high-resolution transmission electron microscopy. Importantly, it is found that the long-period ordered structure can intrinsically accelerate the separation and transfer kinetics of photogenerated charge carriers. Benefiting from these advantages, the ordered BCN structure exhibits remarkable performance for photoinduced selective oxidation of benzyl alcohol compared with the pristine BCN counterpart. This work highlights the important role of the crystal structure of light-harvesting materials in affecting electron-hole separation and at the same time points to the ample potential for improving the photocatalytic performance.
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Affiliation(s)
- Min Zhou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Pengju Yang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Sibo Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Zhishan Luo
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Caijin Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
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