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Fu S, Ullah Khan S, Yang R, Pang H, Au CM, Ma H, Wang X, Yang G, Sun W, Yu WY. High-performance heterometallic photocatalysts afforded by polyoxometalate synthons for efficient H 2 production. J Colloid Interface Sci 2024; 666:496-504. [PMID: 38613972 DOI: 10.1016/j.jcis.2024.04.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
MoS2-based materials have emerged as photoelectric semiconductors characterized by a narrow band gap, high capacity for absorbing visible light, and reduced H2 adsorption energy comparable to Pt. These attributes render them appealing for application in photocatalytic hydrogen production. Despite these advantages, the widespread adoption of MoS2-based materials remains hindered by challenges associated with limited exposure to active sites and suboptimal catalytic hydrogen production efficiency. To address these issues, we have designed and synthesized a new class of highly dispersed bimetallic/trimetallic sulfide materials. This was achieved by developing polyoxometalate synthons containing Ni-Mo elements, which were subsequently reacted with thiourea and CdS. The resulting Ni3S2-MoS2 and Ni3S2-MoS2-CdS materials achieve photocatalytic hydrogen production rates of 2770 and 2873 μmol g-1h-1, respectively. Notably, the rate of 2873 μmol g-1h-1 for Ni3S2-MoS2-CdS surpassed triple (3.23 times) the performance of CdS and nearly sextuple (5.77 times) that of single MoS2. These materials outperformed the majority of MoS2-based photocatalysts. Overall, this study introduces a straightforward methodology for synthesizing bimetallic/trimetallic sulfides with enhanced photocatalytic H2 evolution performance. Our findings underscore the potential of transition metal sulfide semiconductors in the realm of photocatalysis and pave the way for the development of more sustainable energy production systems.
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Affiliation(s)
- Shuanghe Fu
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Shifa Ullah Khan
- The Institute of Chemistry, Faculty of Science, University of Okara, Renala Campus, Punjab 56300, Pakistan
| | - Ruoru Yang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Haijun Pang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Chi-Ming Au
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Huiyuan Ma
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Xinming Wang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Guixin Yang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Wenlong Sun
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China.
| | - Wing-Yiu Yu
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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2
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Jin S, Shi Z, Wang R, Guo Y, Wang L, Hu Q, Liu K, Li N, Zhou A. 2D MoB MBene: An Efficient Co-Catalyst for Photocatalytic Hydrogen Production under Visible Light. ACS NANO 2024; 18:12524-12536. [PMID: 38687979 DOI: 10.1021/acsnano.4c02642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Highly active and low-cost co-catalysts have a positive effect on the enhancement of solar H2 production. Here, we employ two-dimensional (2D) MBene as a noble-metal-free co-catalyst to boost semiconductor for photocatalytic H2 production. MoB MBene is a 2D nanoboride, which is directly made from MoAlB by a facile hydrothermal etching and manual scraping off process. The as-synthesized MoB MBene with purity >95 wt % is treated by ultrasonic cell pulverization to obtain ultrathin 2D MoB MBene nanosheets (∼0.61 nm) and integrated with CdS via an electrostatic interaction strategy. The CdS/MoB composites exhibit an ultrahigh photocatalytic H2 production activity of 16,892 μmol g-1 h-1 under visible light, surpassing that of pure CdS by an exciting factor of ≈1135%. Theoretical calculations and various measurements account for the high performance in terms of Gibbs free energy, work functions, and photoelectrochemical properties. This work discovers the huge potential of these promising 2D MBene family materials as high-efficiency and low-cost co-catalysts for photocatalytic H2 production.
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Affiliation(s)
- Sen Jin
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Zuhao Shi
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan 430070, China
| | - Ruige Wang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yitong Guo
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Libo Wang
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Qianku Hu
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Kai Liu
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan 430070, China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Aiguo Zhou
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
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3
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Zhang J, Zhang M, Wang S, Wu Z, Zhang Z. Moisture-Resistant and Highly Selective NH 3 Sensor Based on CdS/WS 2 Composite Heterojunction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10352-10366. [PMID: 37463135 DOI: 10.1021/acs.langmuir.3c00465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
This study reports the synthesis of CdS/WS2 composites via a green and ultra-low-cost hydrothermal method. By controlling the relative mass ratio between WS2 and CdS, an n-n type CdS/WS2 heterostructure, with excellent NH3 gas-sensitive properties, was developed and investigated at room temperature. Compared with pristine WS2 and CdS, the CdS/WS2-40%wt composite exhibited excellent selectivity of more than 4 orders of magnitude for sensing NH3, a very short recovery time of 3 s, and ultrahigh selectivity at room temperature. The large specific surface area of the CdS/WS2 composite increased the active sites for the gas-sensitive reaction. Additionally, the 2D morphology of CdS/WS2 and the heterojunction formed between WS2 and CdS contributed to the improved performance. Anti-humidity interference tests showed that the CdS/WS2 sample remained stable under real-time monitoring of NH3 at different ambient humidity values. This study paves the way for designing high-performance gas sensors operating at room temperature.
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Affiliation(s)
- Jinzhu Zhang
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Min Zhang
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Shuying Wang
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Zhaofeng Wu
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Ze Zhang
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
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Bavani T, Sasikala P, Arumugam S, Malathi A, Praserthdam P, Madhavan J. A novel S-scheme Ws 2/BiYWO 6 electrostatic heterostructure for enhanced photocatalytic degradation performance towards the degradation of Rhodamine B. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:34468-34480. [PMID: 36512282 DOI: 10.1007/s11356-022-24614-0] [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: 08/08/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Constructing S-scheme heterojunction between two semiconductor materials is an effective route to increase the photocatalytic degradation efficiency. Here, a novel S-scheme WS2/BiYWO6 heterojunction photocatalyst was prepared by wet chemical route. At the same time, the photocatalytic degradation performance of the fabricated materials was analyzed by the degradation of Rhodamine B under visible light. Of all prepared WS2/BiYWO6 composites, the 20 wt.% WS2 loaded WS2/BiYWO6 composite exhibited an enhanced photocatalytic degradation ability than other prepared photocatalysts. Here, O2·- and ·OH radicals are performing a pivotal role in the Rhodamine B degradation and the optimized composite shows greater photocurrent intensity than pure BiYWO6 and WS2, respectively. Also, the synthesized photocatalyst maintains its stability with negligible changes even after three cycles. Thereby, the constructed S-scheme WS2/BiYWO6 heterojunction is a potential material for the wastewater remediation.
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Affiliation(s)
- Thirugnanam Bavani
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Parthasarathy Sasikala
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Swaminathan Arumugam
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India
| | - Arumugam Malathi
- Center of Excellence On Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyasan Praserthdam
- Center of Excellence On Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore, 632 115, India.
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5
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Zhang Y, Qi S, Yu J, Zhang R, Liu X, Zhang K. Theoretical Study on two Direct Z‐scheme Heterostructure Photocatalysts for Efficient Photohydrolysis and Catalytic Oxidation of Formaldehyde, CdS/BiOF and g‐C
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/BiOF. ChemistrySelect 2022. [DOI: 10.1002/slct.202202723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yiming Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Shuyan Qi
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
- School of Artificial Intelligence Liangjiang Chongqing University of Technology Chongqing China 400054
| | - Jintao Yu
- School of Artificial Intelligence Liangjiang Chongqing University of Technology Chongqing China 400054
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Ruiyan Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Xueting Liu
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
| | - Kaiyao Zhang
- School of Materials Science and Engineering Harbin University of Science and Technology Harbin China 150040
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6
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Heterojunction Design between WSe2 Nanosheets and TiO2 for Efficient Photocatalytic Hydrogen Generation. Catalysts 2022. [DOI: 10.3390/catal12121668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Design and fabrication of efficient and stable photocatalysts are critically required for practical applications of solar water splitting. Herein, a series of WSe2/TiO2 nanocomposites were constructed through a facile mechanical grinding method, and all of the nanocomposites exhibited boosted photocatalytic hydrogen evolution. It was discovered that the enhanced photocatalytic performance was attributed to the efficient electron transfer from TiO2 to WSe2 and the abundant active sites provided by WSe2 nanosheets. Moreover, the intimate heterojunction between WSe2 nanosheets and TiO2 favors the interfacial charge separation. As a result, a highest hydrogen evolution rate of 2.28 mmol/g·h, 114 times higher than pristine TiO2, was obtained when the weight ratio of WSe2/(WSe2 + TiO2) was adjusted to be 20%. The designed WSe2/TiO2 heterojunctions can be regarded as a promising photocatalysts for high-throughput hydrogen production.
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7
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Varma P, Sudheer AE, Aravindh Sasikala Devi A, Murali D, Amaranatha Reddy D. Regulating the charge carrier transport rate via bridging ternary heterojunctions to enable CdS nanorods' solar-driven hydrogen evolution. Dalton Trans 2022; 51:18693-18707. [PMID: 36448739 DOI: 10.1039/d2dt03285f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Solar-driven hydrogen generation using single-semiconductor photocatalysts for hydrogen evolution seems to be challenging due to their poor solar to fuel conversion efficiency because of their fast charge carrier recombination. The ternary heterostructure was prepared by an advanced approach to suppress the recombination of photogenerated charge carriers and has contributed a new platform for designing highly efficient photocatalytic systems. Herein, we fabricated a ternary heterojunction with ultrathin WS2-SnS2 nanosheets and CdS nanorods, and the photocatalytic activity was studied. The optimized CdS/SnS2-WS2 (6 wt%) nanostructures were found to be highly stable and exhibited the highest hydrogen evolution rate of 232.45 mmol g-1 h-1, which was almost 93-fold higher than that of the pristine CdS nanorods. Also, Density Functional Theory (DFT) calculations confirmed that the favorable band alignment for charge transport and superior catalytic activity of the newly fabricated ternary nanostructures make them a potential candidate for solar-driven hydrogen production.
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Affiliation(s)
- Pooja Varma
- Department of Sciences, Indian Institute of Information Technology, Design and Manufacturing, Kurnool-518008, Andhra Pradesh, India.
| | - Anjana E Sudheer
- Department of Sciences, Indian Institute of Information Technology, Design and Manufacturing, Kurnool-518008, Andhra Pradesh, India.
| | | | - D Murali
- Department of Sciences, Indian Institute of Information Technology, Design and Manufacturing, Kurnool-518008, Andhra Pradesh, India.
| | - D Amaranatha Reddy
- Department of Sciences, Indian Institute of Information Technology, Design and Manufacturing, Kurnool-518008, Andhra Pradesh, India.
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8
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Guo X, Liu X, Yan J, Liu SF. Heterointerface Engineering of ZnO/CdS Heterostructures through ZnS Layers for Photocatalytic Water Splitting. Chemistry 2022; 28:e202202662. [PMID: 36323635 DOI: 10.1002/chem.202202662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Indexed: 11/06/2022]
Abstract
Solar-driven water splitting to produce clean and renewable hydrogen offers a green strategy to address the energy crisis and environmental pollution. Heterostructure catalysts are receiving increasing attention for photocatalytic hydrogen generation. ZnO/ZnS/CdS and ZnO/CdS heterostructures have been successfully designed and prepared according to two different strategies. By introducing a heterointerface layer of ZnS between ZnO and CdS, a Z scheme charge-transfer channel was promoted and achieved superior photocatalytic performance. A highest hydrogen generation rate of 156.7 μmol g-1 h-1 was achieved by precise control of the thickness of the heterointerface layer and of the CdS shell. These findings demonstrated that heterostructures are promising catalysts for solar-driven water splitting, and that heterointerface engineering is an effective way to improve the photocatalytic properties of heterostructures.
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Affiliation(s)
- Xu Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Xing Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Junqing Yan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China.,iChem, Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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9
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One Step Synthesis of Oxygen Defective Bi@Ba2TiO4/BaBi4Ti4O15 Microsheet with Efficient Photocatalytic Activity for NO Removal. Catalysts 2022. [DOI: 10.3390/catal12111455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Photocatalysis is an effective technology for NO removal even at low concentrations in the ambient atmosphere. However, the low efficiency of this advanced process and the tendency of producing toxic byproducts hinder the practical application of photocatalysis. To overcome these problems, the Bi@Ba2TiO4/BaBi4Ti4O15 photocatalytic composites were successfully prepared by a one-step hydrothermal method. The as-synthesized photocatalysts exhibited an efficient photocatalytic performance and generated low amounts of toxic byproducts. X-ray diffraction studies show that Bi3+ is successfully reduced on the surface of Ba2TiO4/BaBi4Ti4O15 (BT/BBT). After L-Ascorbic acid (AA) modification, the photocatalytic NO removal efficiency of Bi@Ba2TiO4/BaBi4Ti4O15 is increased from 25.55% to 67.88%, while the production of the toxic byproduct NO2 is reduced by 92.02%, where the initial concentration of NO is diluted to ca. 800 ppb by the gas stream and the flow rate is controlled at 301.98 mL·min−1 in a 150 mL cylindrical reactor. Furthermore, ambient humidity has little effect on the photocatalytic performance of theBi@Ba2TiO4/BaBi4Ti4O15, and the photocatalyst exhibits excellent reusability after repeated cleaning with deionized water. The improved photocatalytic effect is attributed to the addition of AA in BT/BBT being able to reduce Bi3+ ions to form Bi nanoparticles giving surface plasmon effect (SPR) and generate oxygen vacancies (OVs) at the same time, thereby improving the separation efficiency of photogenerated carriers, enhancing the light absorption, and increasing the specific surface areas. The present work could provide new insights into the design of high-performance photocatalysts and their potential applications in air purification, especially for NO removal.
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Huang H, Lei Y, Bai L, Liang Y, Yang H. Morphology-dependent quasi 2D/2D point-flat-plate ternary CdS/MoS2/WS2 heterojunction with improved visible photocatalytic degradation of tetracycline. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Metal oxide/2D layered TMDs composites for H2 evolution reaction via photocatalytic water splitting – A mini review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Fan Y, Song X, Ma X, Li W, Zhao M. Rational Design of Black Phosphorus-Based Direct Z-Scheme Photocatalysts for Overall Water Splitting: The Role of Defects. J Phys Chem Lett 2022; 13:9363-9371. [PMID: 36190244 DOI: 10.1021/acs.jpclett.2c02406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Black phosphorus (BP) has received increasing interest as a promising photocatalyst for water splitting. Nevertheless, exploring the underlying hydrogen evolution reaction (HER) mechanism and improving the water oxidizing ability remains an urgent task. Here, using first-principles calculations, we uncover the role of point defects in improving the HER activity of BP photocatalysts. We demonstrate that the defective phosphorene can be effectively activated by the photoinduced electrons under solar light, exhibiting high HER catalytic activity in a broad pH range (0-10). Besides, we propose that the direct Z-scheme in the defective BP/SnSe2 heterobilayer is quite feasible for photocatalytic overall water splitting. This mechanism could be further verified based on the excited state dynamics method. The role of point defects in the photocatalytic mechanism provides useful insights for the development of BP photocatalysts.
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Affiliation(s)
- Yingcai Fan
- School of Information and Electronic Engineering, Shandong Technology and Business University, Yantai264005, China
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan250100, China
| | - Xiaohan Song
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan250100, China
- Shandong Institute of Advanced Technology, Jinan250100, China
| | - Xikui Ma
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan250100, China
| | - Weifeng Li
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan250100, China
| | - Mingwen Zhao
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan250100, China
- School of Physics and Electrical Engineering, Kashgar University, Kashi844006, China
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Ahmad I, Shukrullah S, Naz M, Ahmad M, Ahmed E, Liu Y, Hussain A, Iqbal S, Ullah S. Recent advances and challenges in 2D/2D heterojunction photocatalysts for solar fuels applications. Adv Colloid Interface Sci 2022; 304:102661. [PMID: 35462267 DOI: 10.1016/j.cis.2022.102661] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/26/2022] [Accepted: 04/01/2022] [Indexed: 12/29/2022]
Abstract
Although photocatalytic technology has emerged as an effective means of alleviating the projected future fuel crisis by converting sunlight directly into chemical energy, no visible-light-driven, low-cost, and highly stable photocatalyst has been developed to date. Due to considerably higher interfacial contact with numerous reactive sites, effective charge transmission and separation ability, and strong redox potentials, the focus has now shifted to 2D/2D heterojunction systems, which have exhibited effective photocatalytic performance. The fundamentals of 2D/2D photocatalysis for different applications and the classification of 2D/2D materials are first explained in this paper, followed by strategies to improve the photocatalytic performance of various 2D/2D heterojunction systems. Following that, current breakthroughs in 2D/2D metal-based and metal-free heterojunction photocatalysts, as well as their applications for H2 evolution via water splitting, CO2 reduction, and N2 fixation, are discussed. Finally, a brief overview of current constraints and predicted results for 2D/2D heterojunction systems is also presented. This paper lays out a strategy for developing efficient 2D/2D heterojunction photocatalysts and sophisticated technology for solar fuel applications in order to address the energy issue.
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14
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Wang G, Dou K, Cao H, Du R, Liu J, Tsidaeva N, Wang W. Designing Z-scheme CdS/WS2 heterojunctions with enhanced photocatalytic degradation of organic dyes and photoreduction of Cr (VI): Experiments, DFT calculations and mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Yang W, Xu M, Tao KY, Zhang JH, Zhong DC, Lu TB. Building 2D/2D CdS/MOLs Heterojunctions for Efficient Photocatalytic Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200332. [PMID: 35451165 DOI: 10.1002/smll.202200332] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/01/2022] [Indexed: 06/14/2023]
Abstract
2D lamellar materials can offer high surface area and abundant reactive sites, thus showing an appealing prospect in photocatalytic hydrogen evolution. However, it is still difficult to build cost-efficient photocatalytic hydrogen evolution systems based on 2D materials. Herein, an in situ growth method is employed to build 2D/2D heterojunctions, with which 2D Ni-based metal-organic layers (Ni-MOLs) are closely grown on 2D porous CdS (P-CdS) nanosheets, affording traditional P-CdS/Ni-MOL heterojunction materials. Impressively, the optimized P-CdS/Ni-MOL catalyst exhibits superior photocatalytic hydrogen evolution performance, with an H2 yield of 29.81 mmol g-1 h-1 . This value is 7 and 2981 times higher than that of P-CdS and Ni-MOLs, respectively, and comparable to those of reported state of the art catalysts. Photocatalytic mechanism studies reveal that the enhanced photocatalytic performance can be attributed to the 2D/2D intimate interface between P-CdS and Ni-MOLs, which facilitates the fast charge carriers' separation and transfer. This work provides a strategy to develop 2D MOL-based photocatalysts for sustainable energy conversion.
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Affiliation(s)
- Wei Yang
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Meng Xu
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Ke-Ying Tao
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Ji-Hong Zhang
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Di-Chang Zhong
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Tong-Bu Lu
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
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Ren J, Stagi L, Malfatti L, Paolucci V, Cantalini C, Garroni S, Mureddu M, Innocenzi P. Improving the Photocatalytic Activity of Mesoporous Titania Films through the Formation of WS 2/TiO 2 Nano-Heterostructures. NANOMATERIALS 2022; 12:nano12071074. [PMID: 35407192 PMCID: PMC9000319 DOI: 10.3390/nano12071074] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 01/15/2023]
Abstract
Heterostructures formed by anatase nanotitania and bidimensional semiconducting materials are expected to become the next-generation photocatalytic materials with an extended operating range and higher performances. The capability of fabricating optically transparent photocatalytic thin films is also a highly demanded technological issue, and increasing the performances of such devices would significantly impact several applications, from self-cleaning surfaces to photovoltaic systems. To improve the performances of such devices, WS2/TiO2 heterostructures obtained by incorporating two-dimensional transition metal dichalcogenides layers into titania mesoporous ordered thin films have been fabricated. The self-assembly process has been carefully controlled to avoid disruption of the order during film fabrication. WS2 nanosheets of different sizes have been exfoliated by sonication and incorporated in the mesoporous films via one-pot processing. The WS2 nanosheets result as well-dispersed within the titania anatase mesoporous film that retains a mesoporous ordered structure. An enhanced photocatalytic response due to an interparticle electron transfer effect has been observed. The structural characterization of the heterostructure has revealed a tight interplay between the matrix and nanosheets rather than a simple additive co-catalyst effect.
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Affiliation(s)
- Junkai Ren
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy; (J.R.); (L.S.); (L.M.)
| | - Luigi Stagi
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy; (J.R.); (L.S.); (L.M.)
| | - Luca Malfatti
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy; (J.R.); (L.S.); (L.M.)
| | - Valentina Paolucci
- Department of Industrial and Information Engineering and Economy, University of L’Aquila, 67100 L’Aquila, Italy; (V.P.); (C.C.)
| | - Carlo Cantalini
- Department of Industrial and Information Engineering and Economy, University of L’Aquila, 67100 L’Aquila, Italy; (V.P.); (C.C.)
| | - Sebastiano Garroni
- Department of Chemistry and Geology, University of Sassari, 07100 Sassari, Italy; (S.G.); (M.M.)
| | - Marzia Mureddu
- Department of Chemistry and Geology, University of Sassari, 07100 Sassari, Italy; (S.G.); (M.M.)
| | - Plinio Innocenzi
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy; (J.R.); (L.S.); (L.M.)
- Correspondence:
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17
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Biomimetic nitrogen-rich photocatalyst based on cadmium sulfide for photocatalytic hydrogen evolution. J Colloid Interface Sci 2022; 608:954-962. [PMID: 34785470 DOI: 10.1016/j.jcis.2021.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/21/2022]
Abstract
A novel N-rich sugarcane-like photocatalyst CdS/C3N5 (CCN) was prepared by a thermal polymerization method and tested for generating H2 and realizing antiphotocorrosive performance. The best photocatalytic H2 evolution is obtained for a CdS to C3N5 mass ratio of 1:1 (CCN3), which is nearly 33 and 3 times higher than that of pure C3N5 and CdS, respectively. CCN3 can be used to effectively reduce CdS photocorrosion and increase stability because of its N-rich performance and sugarcane-like structure, which can affect electron transport and enhance the internal binding force, respectively. CCN3 can maintain a high H2 evolution ability after 5 cycles, while still maintaining the original sugarcane-like shape, which has an anti-photocorrosive ability.
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18
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Arun Joshi Reddy K, Amaranatha Reddy D, Hye Hong D, Gopannagari M, Putta Rangappa A, Praveen Kumar D, Kyu Kim T. Impact of the number of surface-attached tungsten diselenide layers on cadmium sulfide nanorods on the charge transfer and photocatalytic hydrogen evolution rate. J Colloid Interface Sci 2022; 608:903-911. [PMID: 34785465 DOI: 10.1016/j.jcis.2021.10.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/11/2021] [Accepted: 10/08/2021] [Indexed: 10/20/2022]
Abstract
The selection of layered number and time-course destruction of layers may affect the charge transfer between 2D-to-1D heterostructure, making it possible to improve the efficiency of solar-to-hydrogen evolution. Herein, we demonstrate a simple, low-cost systematic protocol of 2D-WSe2 nanolayer numbers ranging from 7 to 60 aiding the ultrasonication time-course. The resultant nanolayers were assembled on the surface of 1D-CdS nanorods, which demonstrated an improved surface shuttling property. Consequently, a drastic improvement in photocatalytic solar-driven hydrogen evolution was observed (103.5 mmol h-1 g-1) with seven-layered WSe2 (few-layered WSe2) attached on CdS nanorods surface. This enhanced photocatalytic performance is attributed to the selection of layers on CdS surface that expose abundant active sites; along with suitable energy levels, this can facilitate increased charge transfer leading to feasible photocatalytic reactions. Significantly, the present study proposes an efficient and sustainable process to produce hydrogen and demonstrates the potential of numbered WSe2 nanosheets as a co-catalyst material.
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Affiliation(s)
- K Arun Joshi Reddy
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - D Amaranatha Reddy
- Department of Sciences, Indian Institute of Information Technology Design and Manufacturing, Kurnool, Andhra Pradesh 518007, India.
| | - Da Hye Hong
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | | | - A Putta Rangappa
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - D Praveen Kumar
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Tae Kyu Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
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19
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Humayun M, Wang C, Luo W. Recent Progress in the Synthesis and Applications of Composite Photocatalysts: A Critical Review. SMALL METHODS 2022; 6:e2101395. [PMID: 35174987 DOI: 10.1002/smtd.202101395] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Photocatalysis is an advanced technique that transforms solar energy into sustainable fuels and oxidizes pollutants via the aid of semiconductor photocatalysts. The main scientific and technological challenges for effective photocatalysis are the stability, robustness, and efficiency of semiconductor photocatalysts. For practical applications, researchers are trying to develop highly efficient and stable photocatalysts. Since the literature is highly scattered, it is urgent to write a critical review that summarizes the state-of-the-art progress in the design of a variety of semiconductor composite photocatalysts for energy and environmental applications. Herein, a comprehensive review is presented that summarizes an overview, history, mechanism, advantages, and challenges of semiconductor photocatalysis. Further, the recent advancements in the design of heterostructure photocatalysts including alloy quantum dots based composites, carbon based composites including carbon nanotubes, carbon quantum dots, graphitic carbon nitride, and graphene, covalent-organic frameworks based composites, metal based composites including metal carbides, metal halide perovskites, metal nitrides, metal oxides, metal phosphides, and metal sulfides, metal-organic frameworks based composites, plasmonic materials based composites and single atom based composites for CO2 conversion, H2 evolution, and pollutants oxidation are discussed elaborately. Finally, perspectives for further improvement in the design of composite materials for efficient photocatalysis are provided.
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Affiliation(s)
- Muhammad Humayun
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Engineering Research Center for Functional Ceramics of the Ministry of Education, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Chundong Wang
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Engineering Research Center for Functional Ceramics of the Ministry of Education, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Wei Luo
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Engineering Research Center for Functional Ceramics of the Ministry of Education, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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20
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Goswami T, Bhatt H, Yadav DK, Saha R, Babu KJ, Ghosh HN. Probing ultrafast hot charge carrier migration in MoS 2 embedded CdS nanorods. J Chem Phys 2022; 156:034704. [PMID: 35065550 DOI: 10.1063/5.0074155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Efficient utilization of hot charge carriers is of utmost benefit for a semiconductor-based optoelectronic device. Herein, a one-dimensional (1D)/two-dimensional (2D) heterojunction was fabricated in the form of CdS/MoS2 nanorod/nanosheet composite and migration of hot charge carriers was being investigated with the help of transient absorption (TA) spectroscopy. The band alignment was such that both the electrons and holes in the CdS region tend to migrate into the MoS2 region following photoexcitation. The composite system is composed of optical signatures of both CdS and MoS2, with the dominance of CdS nanorods. In addition, the TA signal of MoS2 is substantially enhanced in the heterosystem at the cost of the diminished CdS signal, confirming the migration of charge carrier population from CdS to MoS2. This migration phenomenon was dominated by the hot carrier transfer. The hot carriers in the high energy states of CdS are preferentially migrated into the MoS2 states rather than being cooled to the band edge. The hot carrier transfer time for a 400 nm pump excitation was calculated to be 0.21 ps. This is much faster than the band edge electron transfer process, occurring at 2.0 ps time scale. We found that these migration processes are very much dependent on the applied pump photon energy. Higher energy pump photons are more efficient in the hot carrier transfer process and place these hot carriers in the higher energy states of MoS2, further extending charge carrier separation. This detailed spectroscopic investigation would help in the fabrication of better 1D/2D heterojunctions and advance the optoelectronic field.
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Affiliation(s)
- Tanmay Goswami
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - Himanshu Bhatt
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - Dharmendra Kumar Yadav
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - Ramchandra Saha
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - K Justice Babu
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
| | - Hirendra N Ghosh
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Mohali, Punjab 140306, India
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21
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Goswami T, Bhatt H, Yadav DK, Ghosh HN. Interfacing g-C 3N 4 Nanosheets with CdS Nanorods for Enhanced Photocatalytic Hydrogen Evolution: An Ultrafast Investigation. J Phys Chem B 2022; 126:572-580. [PMID: 34994569 DOI: 10.1021/acs.jpcb.1c10336] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Effective separation of electron-hole and utilization of hot charge carriers are known to be the most important factors influencing the activity of a good photocatalyst. Herein, we developed a 1D/2D heterojunction in the composite of CdS nanorod and g-C3N4 (CN) nanosheets. These two form a quasi-type-II junction at the heterointerface. The photoexcited electrons are supposed to be transferred from CN to CdS, as observed from the enhanced photoluminescence of CdS. Transient studies revealed an absolute dominance of CdS exciton formation even in the composite system, although the dynamics were substantially modified in the presence of CN. The rise time of CdS band edge excitons were increased in the composite material, owing to the migration of hot electrons from CN to CdS. The hot electron transfer time was found to be ∼0.5 ps (rate constant ∼1.98 ps-1). The excitons decay in a much slower manner than that of the pristine CdS, confirming enhanced electron population in CdS. This migration of charge carriers was found to be immensely dependent on the applied excitation photon energy. Efficient migration of charge carriers leads to enhanced photocatalytic activity in the composite and an increased evolution of H2 evolution rate was witnessed. This detailed spectroscopic study toward the mechanistic pathway of the catalytic activity of an 1D/2D heterocomposite would be immensely helpful in fabricating many other effective heterojunctions which will advance the catalysis research.
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Affiliation(s)
- Tanmay Goswami
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Punjab 140306, India
| | - Himanshu Bhatt
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Punjab 140306, India
| | - Dharmendra Kumar Yadav
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Punjab 140306, India
| | - Hirendra N Ghosh
- Institute of Nano Science and Technology, Knowledge City, Sector 81, SAS Nagar, Punjab 140306, India.,Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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22
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Qi S, Zhang R, Zhang Y, Zhang K, Xu H. The photocatalytic properties and construction of a WS 2/MoS 2/CdS heterojunction. NEW J CHEM 2022. [DOI: 10.1039/d2nj00470d] [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 as-prepared WS2/MoS2/CdS composite heterojunction semiconductor exhibited high photocatalytic activity when degrading organic pollutants under visible light illumination.
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Affiliation(s)
- Shuyan Qi
- The School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Ruiyan Zhang
- The School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Yiming Zhang
- The School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Kaiyao Zhang
- The School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Huanyan Xu
- The School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, China
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23
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Kim T, Park H, Park BH, Joon Yoon S, Liu C, Joo SW, Son N, Kang M. Long-term catalytic durability in Z-scheme CdS@ 1T-WS2 heterojunction materials. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Xu R, Du Y, Ma H, Wu D, Ren X, Sun X, Wei Q, Ju H. Photoelectrochemical aptasensor based on La 2Ti 2O 7/Sb 2S 3 and V 2O 5 for effectively signal change strategy for cancer marker detection. Biosens Bioelectron 2021; 192:113528. [PMID: 34325322 DOI: 10.1016/j.bios.2021.113528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/24/2021] [Accepted: 07/20/2021] [Indexed: 12/01/2022]
Abstract
In this item, a high-efficiency signal "on-off-on" strategy photoelectrochemical (PEC) apatsensor was resoundingly developed for target ultrasensitive analysis. Primarily, the heterojunction formation between Cd: Sb2S3 and La2Ti2O7 was contributed to the first "signal-on" state to improve the stability of the PEC platform. Secondly, V2O5 nanosphere act as a catalyst for H2O2 was used to label on aptamer DNA to consume electron donor for achieving "signal-off" state. Then target analyte was modified on the surface of the PEC platform, and part of V2O5 with aptamer DNA would be released from the aptasensor surface, thus, the "signal-on" state was realized again. In this signal "on-off-on" strategy, the PEC performance of perovskite La2Ti2O7 was effectively perfected with Cd: Sb2S3 sensitization, and broaden the application of perovskite in PEC sensor field. And the signal attenuation and recovery strategy were distinctly elevated the sensitivity of the aptasensor. In the preferred detection conditions, the proposed PEC sensor for analyte (PSA as an example) analysis revealed a wide sensing range from 1.000 × 10-5 to 500.0 ng/mL, own a low detection limit of 4.300 fg/mL. This smart response change mode also provide prospect for other target detection, and offer a reference to signal transform for other electrochemical method.
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Affiliation(s)
- Rui Xu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Yu Du
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Dan Wu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xiang Ren
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xu Sun
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Huangxian Ju
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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25
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Li R, Ou X, Zhang L, Qi Z, Wu X, Lu C, Fan J, Lv K. Photocatalytic oxidation of NO on reduction type semiconductor photocatalysts: effect of metallic Bi on CdS nanorods. Chem Commun (Camb) 2021; 57:10067-10070. [PMID: 34514489 DOI: 10.1039/d1cc03516a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first visible light photocatalytic oxidation of NO on CdS nanorods (CdS-NRs), one of the typical reduction type semiconductor photocatalysts. The NO removal rate in a continuous reactor sharply increases from 44% to 58% after in situ deposition of Bi nanoplates on CdS-NRs. The LSPR effect of metallic Bi causes the dramatic production of superoxide radicals (˙O2-) and singlet oxygen (1O2) that are responsible for the oxidation of NO.
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Affiliation(s)
- Ruina Li
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China.
| | - Xiaoyu Ou
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China.
| | - Li Zhang
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China.
| | - Zheng Qi
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China.
| | - Xiaofeng Wu
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China. .,Surface Science Laboratory, Department of Materials and Earth Sciences, Technische Universität Darmstadt, Otto-Berndt-Strasse 3, 64287 Darmstadt, Germany.
| | - Chunshan Lu
- State Key Laboratory of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Kangle Lv
- Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, Hubei Province 430074, China.
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26
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Huang L, Gao R, Xiong L, Devaraji P, Chen W, Li X, Mao L. Two dimensional Ni 2P/CdS photocatalyst for boosting hydrogen production under visible light irradiation. RSC Adv 2021; 11:12153-12161. [PMID: 35423773 PMCID: PMC8696946 DOI: 10.1039/d1ra00625h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/17/2021] [Indexed: 11/21/2022] Open
Abstract
Two-dimensional (2D) semiconductor materials have attracted considerable attention in the field of photocatalysis due to the high interfacial charge separation efficiency and abundant surface active sites. Herein, we have fabricated 2D/2D sheets of Ni2P/CdS heterostructure for photocatalytic H2 evolution. The microscopic and photocatalytic activity results suggested that Ni2P nanosheets were coupled with snowflake CdS. The optimal hydrogen production rate reached 58.33 mmol h-1 g-1 (QE = 34.38%, λ = 420 nm) over 5 wt% Ni2P, which is equivalent to that of 1 wt% Pt/CdS. Compared with pure CdS, Ni2P/CdS presented lower fluorescence intensity and stronger photocurrent density, which demonstrated that the 2D/2D Ni2P/CdS heterojunction photocatalyst significantly improved the separation efficiency of photogenerated electrons and holes. The excellent performance of Ni2P/CdS clearly indicated that Ni2P was an excellent cocatalyst and could provide abundant active sites for hydrogen evolution.
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Affiliation(s)
- Li Huang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
| | - Ruchao Gao
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
| | - Liuying Xiong
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
| | - Perumal Devaraji
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
| | - Wei Chen
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
- Institute of Functional Polymer Composites, College of Chemistry and Chemical Engineering, Henan University Kaifeng 475004 PR China
| | - Xiying Li
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
- Institute of Functional Polymer Composites, College of Chemistry and Chemical Engineering, Henan University Kaifeng 475004 PR China
| | - Liqun Mao
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University Kaifeng 475004 PR China +86-13513781969
- Institute of Functional Polymer Composites, College of Chemistry and Chemical Engineering, Henan University Kaifeng 475004 PR China
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27
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Zhou Y, Zhang L, Gao W, Yang M, Lu J, Zheng Z, Zhao Y, Yao J, Li J. A reasonably designed 2D WS 2 and CdS microwire heterojunction for high performance photoresponse. NANOSCALE 2021; 13:5660-5669. [PMID: 33724286 DOI: 10.1039/d1nr00210d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Heterojunctions based on low-dimensional materials can combine the superiorities of each component and realize novel properties. Herein, a mixed-dimensional heterojunction comprising multilayer WS2, CdS microwire, and few-layer WS2 has been demonstrated. The working mechanism and its application in a photodetector are investigated. The multilayer WS2 and CdS microwire are utilized to provide efficient light absorption, while the few-layer WS2 is utilized to passivate interfacial impurity scattering. In addition, based on the reasonable band alignment of the components, three built-in electric fields are formed, which efficiently separate the photo-generated carriers and enhance the photocurrent. In particular, the photo-generated electrons are trapped in CdS, while the photo-generated holes circulate in the external circuit, leading to a high photoconductivity gain. Motivated by these, we constructed a device that exhibits a photoresponsivity of ∼4.7 A W-1, a response/recovery time of 13.7/15.8 ms, and a detectivity of 3.4 × 1012 Jones, which are much better than the counterparts. All of these clearly demonstrate the importance of advanced device designs for realizing high performance optoelectronic devices.
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Affiliation(s)
- Yuchen Zhou
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, Guangdong, P. R. China.
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28
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Gai Q, Ren S, Zheng X, Liu W, Dong Q. The synergy of photodeposited CoNi co-catalysts for the photocatalytic performance of C 3N 4/CdS nanosheets: optimized Gibbs free energy and Co–S bridging bonds. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00811k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photocatalytic performance of C3N4/CdS is enhanced by the photodeposited CoNi alloyed NPs: the synergy of the optimized Gibbs free energy of the CoNi co-catalysts and the formed Co–S bridging bonds between CoNi and CdS.
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Affiliation(s)
- Qixiao Gai
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
- Department of Physics
| | - Shoutian Ren
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Xiaochun Zheng
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
- Department of Physics
| | - Wenjun Liu
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Quanli Dong
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
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Qin Z, Guan X, Guo X, Guo P, Wang M, Huang Z, Chen Y. Integrated Z-Scheme Nanosystem Based on Metal Sulfide Nanorods for Efficient Photocatalytic Pure Water Splitting. CHEMSUSCHEM 2020; 13:6528-6533. [PMID: 33094921 DOI: 10.1002/cssc.202002171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/14/2020] [Indexed: 06/11/2023]
Abstract
Developing efficient metal sulfides for pure water splitting is a challenging topic in the field of photocatalysis. Herein, inspired by natural photosynthesis, an all-solid-state Z-scheme photocatalyst was constructed with Cd0.9 Zn0.1 S (CZS) for water reduction, red phosphorus (RP) for water oxidation, and metallic CoP as the electron mediator. RP@CoP core-shell nanostructures were uniformly attached on the CZS nanorods, which gave rise to multiple monodispersed nanojunctions. The integrated Z-scheme nanosystem exhibited an apparent quantum efficiency of 6.4 % at 420 nm for pure water splitting. Theoretical analysis and femtosecond transient absorption results revealed that the impressive performance was mainly due to efficient hole transfer of CZS, resulting from the intimate atomic contacts between CoP mediator and photocatalysts, together with favorable band alignment. Meanwhile, the multiple monodispersed Z-scheme nanojunctions could provide abundant reaction sites, which was also important for the boosted activity.
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Affiliation(s)
- Zhixiao Qin
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Xiangjiu Guan
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Xu Guo
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Penghui Guo
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Menglong Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Zhenxiong Huang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yubin Chen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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30
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Talooki EF, Ghorbani M, Rahimnejad M, Lashkenari MS. Evaluation of a visible light-responsive polyaniline nanofiber˗cadmium sulfide quantum dots photocathode for simultaneous hexavalent chromium reduction and electricity generation in photo-microbial fuel cell. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114469] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Khan K, Tareen AK, Aslam M, Sagar RUR, Zhang B, Huang W, Mahmood A, Mahmood N, Khan K, Zhang H, Guo Z. Recent Progress, Challenges, and Prospects in Two-Dimensional Photo-Catalyst Materials and Environmental Remediation. NANO-MICRO LETTERS 2020; 12:167. [PMID: 34138161 PMCID: PMC7770787 DOI: 10.1007/s40820-020-00504-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/12/2020] [Indexed: 05/03/2023]
Abstract
The successful photo-catalyst library gives significant information on feature that affects photo-catalytic performance and proposes new materials. Competency is considerably significant to form multi-functional photo-catalysts with flexible characteristics. Since recently, two-dimensional materials (2DMs) gained much attention from researchers, due to their unique thickness-dependent uses, mainly for photo-catalytic, outstanding chemical and physical properties. Photo-catalytic water splitting and hydrogen (H2) evolution by plentiful compounds as electron (e-) donors is estimated to participate in constructing clean method for solar H2-formation. Heterogeneous photo-catalysis received much research attention caused by their applications to tackle numerous energy and environmental issues. This broad review explains progress regarding 2DMs, significance in structure, and catalytic results. We will discuss in detail current progresses of approaches for adjusting 2DMs-based photo-catalysts to assess their photo-activity including doping, hetero-structure scheme, and functional formation assembly. Suggested plans, e.g., doping and sensitization of semiconducting 2DMs, increasing electrical conductance, improving catalytic active sites, strengthening interface coupling in semiconductors (SCs) 2DMs, forming nano-structures, building multi-junction nano-composites, increasing photo-stability of SCs, and using combined results of adapted approaches, are summed up. Hence, to further improve 2DMs photo-catalyst properties, hetero-structure design-based 2DMs' photo-catalyst basic mechanism is also reviewed.
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Affiliation(s)
- Karim Khan
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology (DGUT), Dongguan, 523808, Guangdong, People's Republic of China.
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Ayesha Khan Tareen
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Muhammad Aslam
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
- Government Degree College Paharpur, Gomel University, Dera Ismail Khan, K.P.K, Islamic Republic of Pakistan
| | - Rizwan Ur Rehman Sagar
- School of Materials Science and Engineering, Jiangxi University of Science and Technology, Jiangxi, 341000, People's Republic of China
| | - Bin Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Weichun Huang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Asif Mahmood
- School of Chemical and Bio-Molecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nasir Mahmood
- School of Engineering, The Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC, Australia
| | - Kishwar Khan
- Research Laboratory of Electronics (RLE), Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Han Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Zhongyi Guo
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology (DGUT), Dongguan, 523808, Guangdong, People's Republic of China.
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32
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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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33
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Wang W, Hood ZD, Zhang X, Ivanov IN, Bao Z, Su T, Jin M, Bai L, Wang X, Zhang R, Wu Z. Construction of 2D BiVO
4
−CdS−Ti
3
C
2
T
x
Heterostructures for Enhanced Photo‐redox Activities. ChemCatChem 2020. [DOI: 10.1002/cctc.202000448] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Wuyou Wang
- The College of ChemistryNanchang University Nanchang 330031 P.R. China
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
| | - Zachary D. Hood
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
- Department of Materials Science and EngineeringMassachusetts Institute of Technology Massachusetts 02139 USA
| | - Xuanyu Zhang
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
- Department of chemical physicsUniversity of Science and Technology of China Hefei 230026 P.R. China
| | - Ilia N. Ivanov
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
| | - Zhenghong Bao
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
| | - Tongming Su
- School of Chemistry and Chemical EngineeringGuangxi University P.R. China
| | - Mingzhou Jin
- Institute of a Secure and Sustainable EnvironmentThe University of Tennessee Knoxville TN-37996 USA
| | - Lei Bai
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
- Department of Chemical and Biomedical EngineeringWest Virginia University Morgantown WV-26506 USA
| | - Xuewen Wang
- The College of ChemistryNanchang University Nanchang 330031 P.R. China
| | - Rongbin Zhang
- The College of ChemistryNanchang University Nanchang 330031 P.R. China
| | - Zili Wu
- Center for Nanophase Materials SciencesOak Ridge National Laboratory Oak Ridge Tennessee 37831 USA
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34
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Zhou Y, Ding Q, Wang Y, OuYang X, Liu L, Li J, Wang B. Carrier Transfer and Capture Kinetics of the TiO 2/Ag 2V 4O 11 Photocatalyst. NANOMATERIALS 2020; 10:nano10050828. [PMID: 32349227 PMCID: PMC7711476 DOI: 10.3390/nano10050828] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 11/16/2022]
Abstract
In this paper, TiO2/Ag2V4O11 nanoheterojunctions have been synthesized by hydrothermal methods, which show enhanced photocatalytic activity compared to TiO2 under visible light. Moreover, the TiO2/Ag2V4O11 nanoheterojunction with set molar ratio of 2:1, referred to as TA2, show the highest visible light photocatalytic activity, which could decompose about 100% RhB molecules within 80 min of irradiation with visible light. Specially, the time-resolved photoluminescence spectrum of TA2 demonstrates that the free exciton recombination occurs in approximately 1.7 ns, and the time scale for Shockley-Read-Hall recombination of photogenerated electrons and holes is prolonged to 6.84 ns. The prolonged timescale of TA2 compared to TiO2 and Ag2V4O11 can be attributed to the carrier separation between nanojunctions and the carrier capture by interfacial defects. Furthermore, the enhanced photocatalytic activity of TiO2/Ag2V4O11 nanoheterojunctions also benefits from the synergistic effect of the broadened absorption region, higher photocarrier generation, longer carrier lifetime, and quicker collection dynamics.
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Affiliation(s)
- Yun Zhou
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (Y.Z.); (Q.D.); (J.L.); (B.W.)
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
| | - Qiujie Ding
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (Y.Z.); (Q.D.); (J.L.); (B.W.)
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
| | - Yuan Wang
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
- Correspondence: (Y.W.); (X.O.); Tel.: +86-0816-248139 (Y.W.)
| | - Xiaoping OuYang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (Y.Z.); (Q.D.); (J.L.); (B.W.)
- Correspondence: (Y.W.); (X.O.); Tel.: +86-0816-248139 (Y.W.)
| | - Lixin Liu
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
| | - Junyu Li
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (Y.Z.); (Q.D.); (J.L.); (B.W.)
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
| | - Bing Wang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (Y.Z.); (Q.D.); (J.L.); (B.W.)
- Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900, China;
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35
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Chava RK, Son N, Kim YS, Kang M. Controlled Growth and Bandstructure Properties of One Dimensional Cadmium Sulfide Nanorods for Visible Photocatalytic Hydrogen Evolution Reaction. NANOMATERIALS 2020; 10:nano10040619. [PMID: 32230877 PMCID: PMC7221677 DOI: 10.3390/nano10040619] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 01/06/2023]
Abstract
One dimensional (1D) metal sulfide nanostructures are one of the most promising materials for photocatalytic water splitting reactions to produce hydrogen (H2). However, tuning the nanostructural, optical, electrical and chemical properties of metal sulfides is a challenging task for the fabrication of highly efficient photocatalysts. Herein, 1D CdS nanorods (NRs) were synthesized by a facile and low-cost solvothermal method, in which reaction time played a significant role for increasing the length of CdS NRs from 100 nm to several micrometers. It is confirmed that as the length of CdS NR increases, the visible photocatalytic H2 evolution activity also increases and the CdS NR sample obtained at 18 hr. reaction time exhibited the highest H2 evolution activity of 206.07 μmol.g−1.h−1. The higher H2 evolution activity is explained by the improved optical absorption properties, enhanced electronic bandstructure and decreased electron-hole recombination rate.
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Affiliation(s)
- Rama Krishna Chava
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea;
- Correspondence: or (R.K.C.); (M.K.)
| | - Namgyu Son
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea;
| | - Yang Soo Kim
- Korea Basic Science Institute, Gwahak-ro, Yuseong-gu, Daejeon 34133, Korea;
| | - Misook Kang
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea;
- Correspondence: or (R.K.C.); (M.K.)
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36
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Lu X, Toe CY, Ji F, Chen W, Wen X, Wong RJ, Seidel J, Scott J, Hart JN, Ng YH. Light-Induced Formation of MoO xS y Clusters on CdS Nanorods as Cocatalyst for Enhanced Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8324-8332. [PMID: 31934743 DOI: 10.1021/acsami.9b21810] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal and metal-oxide particles are commonly photodeposited on photocatalysts by reduction and oxidation reactions, respectively, consuming charges that are generated under illumination. This study reveals that amorphous MoOxSy clusters can be easily photodeposited at the tips of CdS nanorods (NRs) by in situ photodeposition for the first time. The as-prepared MoOxSy-decorated CdS samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma (ICP) to determine the composition and the possible formation pathways of the amorphous MoOxSy clusters. The MoOxSy-tipped CdS samples exhibited better hydrogen evolution performance than pure CdS under visible-light illumination. The enhanced activity is attributed to the formation of intimate interfacial contact between CdS and the amorphous MoOxSy clusters, which facilitates the charge separation and transfer. Through time-resolved photoluminescence (TRPL) measurements, it was clearly observed that all MoOxSy-decorated CdS samples with different loadings of MoOxSy showed a faster PL decay when compared to pure CdS, resulting from the effective trapping of photogenerated electrons by the MoOxSy clusters. Kelvin probe force microscopy (KPFM) was further used to study the surface potentials of pure CdS NRs and MoOxSy-decorated CdS NRs. A higher surface potential on MoOxSy-decorated CdS NRs was observed in the dark, indicating that the loading of MoOxSy resulted in a lower surface work function compared to pure CdS NRs. This contributed to the effective electron trapping and separation, which was also reflected by the increased photoelectrochemical response. Thus, this study demonstrates the design and facile synthesis of MoOxSy-tipped CdS NRs photocatalysts for efficient solar hydrogen production.
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Affiliation(s)
| | | | | | - Weijian Chen
- Centre for Translational Atomaterials , Swinburne University of Technology , Hawthorn, Melbourne 3122 , Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials , Swinburne University of Technology , Hawthorn, Melbourne 3122 , Australia
| | - Roong Jien Wong
- School of Applied Chemistry and Environmental Science , RMIT University , Melbourne , VIC 3000 , Australia
| | | | | | | | - Yun Hau Ng
- School of Energy and Environment , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
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37
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Bhavani P, Kumar DP, Shim HS, Rangappa P, Gopannagari M, Reddy DA, Song JK, Kim TK. In situ addition of Ni salt onto a skeletal Cu7S4 integrated CdS nanorod photocatalyst for efficient production of H2 under solar light irradiation. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02612f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Development of earth-abundant, low cost, skeletal-type copper sulfide superstructures and in situ addition of Ni salts plays a prominent role to enhance the activity of CdS semiconductor nanostructures for photocatalytic H2 production.
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Affiliation(s)
- P. Bhavani
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Republic of Korea
| | - D. Praveen Kumar
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Republic of Korea
| | - Hyung Seop Shim
- Department of Chemistry
- Kyung Hee University
- Seoul 02447
- Republic of Korea
| | - Putta Rangappa
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Republic of Korea
| | | | | | - Jae Kyu Song
- Department of Chemistry
- Kyung Hee University
- Seoul 02447
- Republic of Korea
| | - Tae Kyu Kim
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Republic of Korea
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38
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Li Y, Chen S, Zhang K, Gu S, Cao J, Xia Y, Yang C, Sun W, Zhou Z. Highly efficient and stable photocatalytic properties of CdS/FeS nanocomposites. NEW J CHEM 2020. [DOI: 10.1039/d0nj01424a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
CdS/FeS nanocomposites were successfully synthesized via a liquid-phase thermal decomposition of a single precursor and an ion adsorption method.
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Affiliation(s)
- Yu Li
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Shubin Chen
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Kejie Zhang
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology
| | - Siwen Gu
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Jing Cao
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Yuan Xia
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Changgen Yang
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Wu Sun
- School of Materials Science and Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Zhiping Zhou
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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39
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Jian Q, Hao X, Jin Z, Ma Q. Amorphous tungsten phosphosulphide-modified CdS nanorods as a highly efficient electron-cocatalyst for enhanced photocatalytic hydrogen production. Phys Chem Chem Phys 2020; 22:1932-1943. [DOI: 10.1039/c9cp04724g] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Improving the utilization rate of photogenerated electrons generated by visible light excitation is an important factor to improve the activity of photocatalytic decomposition of water for hydrogen evolution.
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Affiliation(s)
- Qiyan Jian
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P. R. China
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
| | - Xuqiang Hao
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P. R. China
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P. R. China
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
| | - Qingxiang Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
- Ningxia University
- Yinchuan
- P. R. China
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40
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Gai Q, Ren S, Zheng X, Liu W, Dong Q, Gao R. Controllable photodeposition of nickel phosphide cocatalysts on cadmium sulfide nanosheets for enhanced photocatalytic hydrogen evolution performance. NEW J CHEM 2020. [DOI: 10.1039/c9nj06403f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As efficient cocatalysts in photocatalytic processes, transition metal phosphides are usually synthesized in harsh and tedious conditions. So to achieve their simple and controllable loading on photocatalyst surface is especially valuable.
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Affiliation(s)
- Qixiao Gai
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Shoutian Ren
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Xiaochun Zheng
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Wenjun Liu
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Quanli Dong
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
| | - Renxi Gao
- Department of Optoelectronic Science
- Harbin Institute of Technology at Weihai
- Weihai 264209
- People's Republic of China
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41
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Su T, Qin Z, Ji H, Wu Z. An overview of photocatalysis facilitated by 2D heterojunctions. NANOTECHNOLOGY 2019; 30:502002. [PMID: 31469110 DOI: 10.1088/1361-6528/ab3f15] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Two-dimensional (2D) photocatalysts have attracted considerable research interest in the past decades due to their unique optical, physical and chemical properties. Constructing 2D/2D heterojunctions with large interface area has been considered as an effective approach to enhance the transfer rate and the separation efficiency of the charge carriers, leading to dramatic increase in the photocatalytic performance of the photocatalysts. Here, the state-of-the-art progress on heterojunctions based on 2D materials is reviewed, including the photocatalysis principles using 2D heterojunctions, the categories of 2D heterojunctions and their application in different photocatalytic reactions, and the theoretical studies of the 2D heterojunctions. Moreover, the advantages and disadvantages of the 2D heterojunctions are also discussed. Finally, the ongoing challenges and opportunities for the future development of 2D photocatalysts with built-in heterojunctions are proposed.
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Affiliation(s)
- Tongming Su
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, People's Republic of China
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Luo J, Zhang S, Sun M, Yang L, Luo S, Crittenden JC. A Critical Review on Energy Conversion and Environmental Remediation of Photocatalysts with Remodeling Crystal Lattice, Surface, and Interface. ACS NANO 2019; 13:9811-9840. [PMID: 31365227 DOI: 10.1021/acsnano.9b03649] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Solar energy is a renewable resource that can supply our energy needs in the long term. A semiconductor photocatalysis that is capable of utilizing solar energy has appealed to considerable interests for recent decades, owing to the ability to aim at environmental problems and produce renewal energy. Much effort has been put into the synthesis of a highly efficient semiconductor photocatalyst to promote its real application potential. Hence, we reviewed the most advanced methods and strategies in terms of (i) broadening the light absorption wavelengths, (ii) design of active reaction sites, and (iii) control of the electron-hole (e--h+) recombination, while these three processes could be influenced by remodeling the crystal lattice, surface, and interface. Additionally, we individually examined their current applications in energy conversion (i.e., hydrogen evolution, CO2 reduction, nitrogen fixation, and oriented synthesis) and environmental remediation (i.e., air purification and wastewater treatment). Overall, in this review, we particularly focused on advanced photocatalytic activity with simultaneous wastewater decontamination and energy conversion and further enriched the mechanism by proposing the electron flow and substance conversion. Finally, this review offers the prospects of semiconductor photocatalysts in the following three vital (distinct) aspects: (i) the large-scale preparation of highly efficient photocatalysts, (ii) the development of sustainable photocatalysis systems, and (iii) the optimization of the photocatalytic process for practical application.
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Affiliation(s)
- Jinming Luo
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Shuqu Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - Meng Sun
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Lixia Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle , Nanchang Hangkong University , Nanchang 330063 , Jiangxi Province , People's Republic of China
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
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Wang K, Li J, Zhang G. Ag-Bridged Z-Scheme 2D/2D Bi 5FeTi 3O 15/g-C 3N 4 Heterojunction for Enhanced Photocatalysis: Mediator-Induced Interfacial Charge Transfer and Mechanism Insights. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27686-27696. [PMID: 31282639 DOI: 10.1021/acsami.9b05074] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Heterojunction photocatalysts have attracted widespread interest in photocatalysis because of their high-efficiency interfacial charge-transfer characteristics of nanoarchitectures. In this study, Ag-bridged 2D/2D Bi5FeTi3O15/ultrathin g-C3N4 Z-scheme heterojunction photocatalysts with powerful interfacial charge transfer has been synthesized via a facile ultrasound method coupled with a photoreduction strategy for efficient photocatalytic degradation of antibiotics. The morphology analysis displays that the bridged Ag nanoparticles were anchored on the interface of layered Bi5FeTi3O15 and ultrathin g-C3N4 nanosheets. Owing to its unique 2D/2D ternary heterostructure, the Bi5FeTi3O15/2%Ag/10% ultrathin g-C3N4 composite exhibited the best tetracycline degradation performance under visible-light and simulated solar irradiation. Meanwhile, the intermediates and degradation pathways were proposed by a liquid-phase mass spectrometry system. Characterizations and density functional theory studies together verify that the matched band structure of Bi5FeTi3O15 and g-C3N4 could induce a superfast Z-scheme interfacial charge-transfer path. More importantly, bridged Ag nanoparticles in the 2D/2D heterojunction extended the light absorption range and prolonged the lifetime of photogenerated electron-holes induced by Bi5FeTi3O15. This work affords a promising approach for designing multicomponent Z-scheme heterojunction photocatalysts for highly efficient photocatalytic application.
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Fiaz M, Athar M. Modification of MIL‐125(Ti) by Incorporating Various Transition Metal Oxide Nanoparticles for Enhanced Photocurrent during Hydrogen and Oxygen Evolution Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901818] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Muhammad Fiaz
- Institute of Chemical SciencesBahauddin Zakariya University Multan 60800 Pakistan
| | - Muhammad Athar
- Institute of Chemical SciencesBahauddin Zakariya University Multan 60800 Pakistan
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Xia Y, Cheng B, Fan J, Yu J, Liu G. Unraveling Photoexcited Charge Transfer Pathway and Process of CdS/Graphene Nanoribbon Composites toward Visible-Light Photocatalytic Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902459. [PMID: 31257727 DOI: 10.1002/smll.201902459] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/06/2019] [Indexed: 06/09/2023]
Abstract
Converting solar energy into chemical fuels is increasingly receiving a great deal of attention. In this work, CdS nanoparticles (NPs) are solvothermally anchored onto graphene nanoribbons (GNRs) that are longitudinally unzipped from multiwalled carbon nanotubes. The as-synthesized CdS/GNR nanocomposites with recyclability present GNR content-dependent activity in visible-light-driven hydrogen evolution from water splitting. In a range of 1-10 wt% GNRs, the CdS/GNR composites with 2 wt% GNRs achieves the greatest hydrogen evolution rate of 1.89 mmol h-1 g-1 . The corresponding apparent quantum efficiency is 19.3%, which is ≈3.7 times higher than that of pristine CdS NPs. To elucidate the underlying photocatalytic mechanism, a systematic characterization, including in situ irradiated X-ray photoelectron spectroscopy and Kelvin probe measurements, is performed. In particular, the interfacial charge transfer pathway and process from CdS NPs to GNRs is revealed. This work may open avenues to fabricate GNR-based nanocomposites for solar-to-chemical energy conversion and beyond.
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Affiliation(s)
- Yang Xia
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Jiajie Fan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Gang Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
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Bao Y, Zhang Z, Cao B, Liu Y, Shang J, Yang Y, Dong B. Energy transfer from Er to Nd ions by the thermal effect and promotion of the photocatalysis of the NaYF 4:Yb,Er,Nd/W 18O 49 heterostructure. NANOSCALE 2019; 11:7433-7439. [PMID: 30938729 DOI: 10.1039/c9nr00409b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The NaYF4:Yb,Er/W18O49 heterostructure is an excellent photocatalyst that can promote H2 evolution by hydrolyzing BH3NH3 under near-infrared (NIR) light irradiation. At the same time, the photothermal effect can be produced in photocatalytic reactions, which will cause the luminescence efficiency and photocatalytic activity to decrease. Determining how to take advantage of that photothermal effect becomes a major problem. Moreover, the energy transfer (ET) process from Er ions to Nd ions in NaYF4 co-doped with Yb/Er/Nd ions (NaYF4:Yb,Er,Nd) occurred at high temperature. Herein, the NaYF4:Yb,Er,Nd/W18O49 quasi-core-shell heterostructure was designed to achieve better H2 production capacity; this heterostructure exhibits a 1.5-fold enhancement of photocatalytic activity for H2 evolution as compared with the NaYF4:Yb,Er/W18O49 heterostructure. This study provides a new way to explore the catalytic activities in the NIR field for application in the development of a sustainable energy source.
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Affiliation(s)
- Yanan Bao
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, P. R. China.
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Sumesh CK, Peter SC. Two-dimensional semiconductor transition metal based chalcogenide based heterostructures for water splitting applications. Dalton Trans 2019; 48:12772-12802. [DOI: 10.1039/c9dt01581g] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent research and development is focused in an intensive manner to increase the efficiency of solar energy conversion into electrical energy via photovoltaics and photo-electrochemical reactions.
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Affiliation(s)
- C. K. Sumesh
- Department of Physical Sciences
- P. D. Patel Institute of Applied Sciences
- Charotar University of Science and Technology (CHARUSAT)
- Changa-388421
- India
| | - Sebastian C. Peter
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
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Liu C, Xiong M, Chai B, Yan J, Fan G, Song G. Construction of 2D/2D Ni2P/CdS heterojunctions with significantly enhanced photocatalytic H2 evolution performance. Catal Sci Technol 2019. [DOI: 10.1039/c9cy02045d] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2D/2D Ni2P/CdS heterojunctions are prepared by combining liquid exfoliation of CdS with a post-annealing procedure and employed as highly efficient photocatalysts for H2 evolution.
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Affiliation(s)
- Chun Liu
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Minghui Xiong
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Bo Chai
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Juntao Yan
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Guozhi Fan
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
| | - Guangsen Song
- School of Chemical and Environmental Engineering
- Wuhan Polytechnic University
- Wuhan 430023
- PR China
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You D, Xu C, Wang J, Su W, Zhang W, Zhao J, Qin F, Liu Y. Three-Dimensional Core-Shell Nanorod Arrays for Efficient Visible-Light Photocatalytic H 2 Production. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35184-35193. [PMID: 30256090 DOI: 10.1021/acsami.8b11988] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Constructing heterostructured nanomaterials with integrating different functional materials into well-oriented nanoarchitectures is an efficacious tactic to obtain high-performance photocatalysts. In this paper, we fabricated three-dimensional ZnO-WS2@CdS core-shell nanorod arrays as visible-light-driven photocatalysts for efficient photocatalytic H2 production. This unique core-shell heterostructure extends visible-light absorption and provides more active sites. More importantly, the ZnO-WS2@CdS nanorod arrays build a beneficial energy level configuration and spatial structure to accelerate the generation, separation, and transfer of the photogenerated electron-hole. On the basis of the synergistic effects, the photocatalytic H2 rate of optimized ZnO-WS2@CdS nanorod arrays achieves 15.12 mmol h-1 g-1 in visible light irradiation, which is 39, 9, and 8 times higher than pure CdS, ZnO-CdS, and CdS-WS2 photocatalysts. The apparent quantum yield is up to 14.92% at 420 nm. Moreover, the core-shell heterostructure photocatalyst can recycle and maintain stability.
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Affiliation(s)
- Daotong You
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Chunxiang Xu
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Jing Wang
- State Key Laboratory of Photocatalysis on Energy and Environment , Fuzhou University , Fuzhou 350002 , P. R. China
| | - Wenyue Su
- State Key Laboratory of Photocatalysis on Energy and Environment , Fuzhou University , Fuzhou 350002 , P. R. China
| | - Wei Zhang
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Jie Zhao
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Feifei Qin
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
| | - Yanjun Liu
- State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering , Southeast University , Nanjing 210096 , P. R. China
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