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Wei N, Chen Y, Wang X, Kan M, Zhang T, Zhao Y. Solution chemistry quasi-epitaxial growth of atomic CaTiO 3 perovskite layers to stabilize and passivate TiO 2 photoelectrodes for efficient water splitting. FUNDAMENTAL RESEARCH 2023; 3:918-925. [PMID: 38933012 PMCID: PMC11197713 DOI: 10.1016/j.fmre.2021.11.038] [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: 07/06/2021] [Revised: 09/30/2021] [Accepted: 11/02/2021] [Indexed: 11/24/2022] Open
Abstract
Perovskite oxides with unique crystal structures and high defect tolerance are promising as atomic surface passivation layers for photoelectrodes for efficient and stable water splitting. However, controllably depositing and crystalizing perovskite-type metal oxides at the atomic level remains challenging, as they usually crystalize at higher temperatures than regular metal oxides. Here, we report a mild solution chemistry approach for the quasi-epitaxial growth of an atomic CaTiO3 perovskite layer on rutile TiO2 nanorod arrays. The high-temperature crystallization of CaTiO3 perovskite is overcome by a sequential hydrothermal conversion of the atomic amorphous TiOx layer to CaTiO3 perovskite. The atomic quasi-epitaxial CaTiO3 layer passivated TiO2 nanorod arrays exhibit more efficient interface charge transfer and high photoelectrochemical performance for water splitting. Such a mild solution-based approach for the quasi-epitaxial growth of atomic metal oxide perovskite layers could be a promising strategy for both fabricating atomic perovskite layers and improving their photoelectrochemical properties.
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Affiliation(s)
- Ning Wei
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuetian Chen
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xingtao Wang
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Miao Kan
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Taiyang Zhang
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yixin Zhao
- Frontiers Science Center for Transformative Molecules, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200240, China
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Unpredicted Visible Light Induced Advanced Photocatalytic Performance of Eu Doped CaTiO3 Nanoparticles Prepared by Facile Sol–Gel Technique. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02135-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Efficient hydrogen generation of vector Z-scheme CaTiO 3/Cu/TiO 2 photocatalyst assisted by cocatalyst Cu nanoparticles. J Colloid Interface Sci 2021; 605:373-384. [PMID: 34332411 DOI: 10.1016/j.jcis.2021.07.106] [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: 05/28/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 12/23/2022]
Abstract
Herein, the CaTiO3/Cu/TiO2 all-solid-state Z-scheme heterojunction is successfully designed via Cu nanoparticles situating at the interface between CaTiO3 and TiO2 with a new synthesis route. Interestingly, TiO2 nanosheets are generated in-situ on the surface of CaTiO3 in the second step hydrothermal reaction. The lifetimes of photoexcited carriers, photoluminescence emission spectra and transient photocurrent response tests have confirmed that the efficient Z-scheme charge transmission path of the CaTiO3/Cu/TiO2 is beneficial to facilitate the separation of photogenerated carriers and reduce their recombination efficiency. As expected, the hydrogen generation rate of CaTiO3/Cu/TiO2 is increased to 23.550 mmol g-1h-1 with the appropriate amount of copper loading, which is about 981 times and 93 times higher than that of pristine CaTiO3 (0.024 mmol g-1h-1) and CaTiO3/TiO2 (0.253 mmol g-1h-1), respectively. Furthermore, the CaTiO3/Cu/TiO2 sample shows good stability in cycle experiments. Particularly, experimental results show that the non-noble metal Cu nanoparticles can be an effective electron mediator. And these merits strongly demonstrate that the CaTiO3/Cu/TiO2 composites have potential application in photocatalytic field. This study can provide fundamental guidance for designing rationally efficient non-noble metal vector Z-scheme system photocatalysts with outstanding photocatalytic H2 generation performance.
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Purohit S, Yadav KL, Satapathi S. Bandgap Engineering in a Staggered-Type Oxide Perovskite Heterojunction for Efficient Visible Light-Driven Photocatalytic Dye Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3467-3476. [PMID: 33705135 DOI: 10.1021/acs.langmuir.1c00209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Oxide perovskite materials with ABO3 structure have been widely employed for photocatalytic applications. However, owing to the disadvantageous electron-hole recombination process and wide bandgap of some materials, the photocatalytic performance is seemingly restricted. Coupling two catalysts together through the formation of a heterojunction ensures effective charge carrier separation. The intimate interaction between the materials is propitiously useful for charge transfer, thereby increasing the efficacy. In this study, the photocatalytic activity of a KxNa(1-x)NbO3-BaBiO3 (KNN-BBO) heterojunction material for the degradation of Rhodamine 6G organic dye was investigated. The materials were extensively characterized by X-ray diffraction, UV-Vis diffused reflectance spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and N2 adsorption isotherms. The degradation efficiency of the organic contaminant under 1 sun simulated sunlight is monitored by spectral analysis from UV-Vis absorption spectroscopy. The resistance to charge transfer was also observed by electrochemical impedance spectroscopy. The effect of the sintering temperature on the photoinduced degradation activity was also included in our study. An unsintered KNN-BBO (UKB) composite material is found to be the most efficient catalyst with 84% removal efficiency as compared to the sintered one (SKB). This is attributed to the reduced bandgap with staggered-type band alignment, increased surface area, and surface oxygen vacancy states. Together with the crucial findings of this work, a probable mechanism for enhanced photocatalytic activity has been proposed here.
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Affiliation(s)
- Smruti Purohit
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667, India
| | - Kanhaiya Lal Yadav
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667, India
| | - Soumitra Satapathi
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667, India
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Kumar A, Kumar A, Krishnan V. Perovskite Oxide Based Materials for Energy and Environment-Oriented Photocatalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02947] [Citation(s) in RCA: 205] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ashish Kumar
- School of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Ajay Kumar
- School of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
| | - Venkata Krishnan
- School of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
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Kumar A, Navakoteswara Rao V, Kumar A, Venkatakrishnan Shankar M, Krishnan V. Interplay between Mesocrystals of CaTiO3and Edge Sulfur Atom Enriched MoS2on Reduced Graphene Oxide Nanosheets: Enhanced Photocatalytic Performance under Sunlight Irradiation. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900267] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ashish Kumar
- School of Basic Sciences and Advanced Materials Research CenterIndian Institute of Technology Mandi Mandi 175075, Himachal Pradesh India
| | - Vempuluru Navakoteswara Rao
- Nanocatalysis and Solar Fuels Research Laboratory Department of Materials Science & NanotechnologyYogi Vemana University Kadapa 516005, Andhra Pradesh India
| | - Ajay Kumar
- School of Basic Sciences and Advanced Materials Research CenterIndian Institute of Technology Mandi Mandi 175075, Himachal Pradesh India
| | - Muthukonda Venkatakrishnan Shankar
- Nanocatalysis and Solar Fuels Research Laboratory Department of Materials Science & NanotechnologyYogi Vemana University Kadapa 516005, Andhra Pradesh India
| | - Venkata Krishnan
- School of Basic Sciences and Advanced Materials Research CenterIndian Institute of Technology Mandi Mandi 175075, Himachal Pradesh India
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Large-scale fabrication of upconversion/quantum dots photocatalyst film by a facile spin-coating method. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Perovskite-Based Materials for Photocatalytic Environmental Remediation. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2019. [DOI: 10.1007/978-3-030-10609-6_5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Lin J, Hu J, Qiu C, Huang H, Chen L, Xie Y, Zhang Z, Lin H, Wang X. In situ hydrothermal etching fabrication of CaTiO3 on TiO2 nanosheets with heterojunction effects to enhance CO2 adsorption and photocatalytic reduction. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02142b] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ fabricated CaTiO3/TiO2 heterojunction shows highly photocatalytic activity for reduction of CO2 to CO with H2O.
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Affiliation(s)
- Jinjin Lin
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Jiangshan Hu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Chengwei Qiu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Huijuan Huang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Lu Chen
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Yanyu Xie
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Zizhong Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Huaxiang Lin
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
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Yang MQ, Gao M, Hong M, Ho GW. Visible-to-NIR Photon Harvesting: Progressive Engineering of Catalysts for Solar-Powered Environmental Purification and Fuel Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802894. [PMID: 30133029 DOI: 10.1002/adma.201802894] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 06/08/2018] [Indexed: 06/08/2023]
Abstract
Utilization of diffusive solar energy through photocatalytic processes for environmental purification and fuel production has long been pursued. However, efficient capture of visible-near-infrared (NIR) photons, especially for those with wavelengths longer than 600 nm, is a demanding quest in photocatalysis owing to their relatively low energy. In recent years, benefiting from the advances in photoactive material design, photocatalytic reaction system optimization, and new emerging mechanisms for long-wavelength photon activation, increasing numbers of studies on the harnessing of visible-NIR light for solar-to-chemical energy conversion have been reported. Here, the aim is to comprehensively summarize the progress in this area. The main strategies of the long-wavelength visible-NIR photon capture and the explicitly engineered material systems, i.e., narrow optical gap, photosensitizers, upconversion, and photothermal materials, are elaborated. In addition, the advances in long-wavelength light-driven photo- and photothermal-catalytic environmental remediation and fuel production are discussed. It is anticipated that this review presents the forefront achievements in visible-NIR photon capture and at the same time promotes the development of novel visible-NIR photon harnessing catalysts toward efficient solar energy utilization.
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Affiliation(s)
- Min-Quan Yang
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117583, Singapore, Singapore
| | - Minmin Gao
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117583, Singapore, Singapore
| | - Minghui Hong
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117583, Singapore, Singapore
| | - Ghim Wei Ho
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117583, Singapore, Singapore
- Engineering Science Programme, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore, Singapore
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, 117602, Singapore, Singapore
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11
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Wang Y, Niu CG, Wang L, Wang Y, Zhang XG, Zeng GM. Synthesis of fern-like Ag/AgCl/CaTiO3 plasmonic photocatalysts and their enhanced visible-light photocatalytic properties. RSC Adv 2016. [DOI: 10.1039/c6ra06435c] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel visible-light-driven photocatalyst Ag/AgCl/CaTiO3 was successfully synthesized via a simple ultrasonic assisted precipitation–photoreduction process.
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Affiliation(s)
- Ying Wang
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
| | - Cheng-Gang Niu
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
| | - Liang Wang
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
| | - Yin Wang
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
| | - Xue-Gang Zhang
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
| | - Guang-Ming Zeng
- College of Environmental Science Engineering
- Key Laboratory of Environmental Biology Pollution Control
- Ministry of Education
- Hunan University
- Changsha 410082
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12
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Zhang F, Hao LN, Wang Y, Cheng S, Wang WN, Zhang CL, Xu F, Qian HS. Hydrothermal-assisted crystallization for the synthesis of upconversion nanoparticles/CdS/TiO2composite nanofibers by electrospinning. CrystEngComm 2016. [DOI: 10.1039/c6ce00987e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Li YW, Dong L, Huang CX, Guo YC, Yang XZ, Xu YJ, Qian HS. Decoration of upconversion nanoparticles@mSiO2 core–shell nanostructures with CdS nanocrystals for excellent infrared light triggered photocatalysis. RSC Adv 2016. [DOI: 10.1039/c6ra09261f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Upconversion nanoparticles@mesoporous silica (mSiO2)/CdS nanostructures have been designed and fabricated for infrared light triggered photocatalytic degradation towards RhB dye.
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Affiliation(s)
- Yao-Wu Li
- School of Biological and Medical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Liang Dong
- School of Biological and Medical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
- Division of Nanomaterials and Chemistry
| | - Chen-Xi Huang
- School of Biological and Medical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Yan-Chuan Guo
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xian-Zhu Yang
- School of Biological and Medical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Yun-Jun Xu
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Chemistry
- University of Science and Technology of China
- Hefei
| | - Hai-Sheng Qian
- School of Biological and Medical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
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