1
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Zhen C, Zhu H, Chen R, Zheng Z, Fan F, Li B, Xu X, Du Y, Cheng HM, Domen K, Liu G. An Artificial Leaf with Patterned Photocatalysts for Sunlight-Driven Water Splitting. J Am Chem Soc 2024. [PMID: 39324425 DOI: 10.1021/jacs.4c10807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Plant leaves can turn entirely absorbed light into chemical energy due to their spatially separated photosystems I and II in the thylakoid membrane that enables unidirectional Z-scheme type charge transfer between them. In artificial systems that mimic leaves, a lack of spatial and interfacial control of active units (i.e., hydrogen evolution photocatalyst/HEP and oxygen evolution photocatalyst/OEP) introduces competitive charge transfer channels between them, resulting in deficient Z-scheme type charge transfer. Herein, we demonstrate that a patterned photocatalyst sheet, namely, an artificial leaf, comprising an ordered and separated distribution of the OEP and HEP strips on a conductive substrate, achieves unidirectional Z-scheme type charge transfer as the leaves do. It represents a next-generation photocatalytic system that mimics the leaves to bring breakthrough in photocatalytic over water splitting performance with the combination of highly active HEP and OEP photocatalysts, opening up a promising avenue toward solar energy conversion by artificial photosynthesis.
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Affiliation(s)
- Chao Zhen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Honglei Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Ruotian Chen
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Bei Li
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Xiaoxiang Xu
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yufei Du
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Blvd, Shenzhen 518055, China
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan
- Office of University Professors, The University of Tokyo, Tokyo 113-8656, Japan
| | - Gang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
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2
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Kaiya K, Ueki Y, Kawamoto H, Watanabe K, Yoshino S, Yamaguchi Y, Kudo A. Water splitting over transition metal-doped SrTiO 3 photocatalysts with response to visible light up to 660 nm. Chem Sci 2024:d4sc03978e. [PMID: 39290591 PMCID: PMC11403823 DOI: 10.1039/d4sc03978e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 09/04/2024] [Indexed: 09/19/2024] Open
Abstract
Highly efficient water splitting under visible light irradiation was achieved using Ir, Sb, and Al-codoped SrTiO3 of a single particulate metal oxide photocatalyst by a solid-state reaction followed by flux treatment using SrCl2 and loading of a RhCrO x cocatalyst. The photocatalytic activity was improved by Al2O3 addition to the flux treatment, and doping of small amounts of Ir and Sb. It is notable that the water splitting over the photocatalyst proceeded with response to visible light up to 660 nm. This response wavelength is the longest compared with previously reported single particulate visible-light-driven photocatalysts for water splitting. The apparent quantum yield at 420 nm of the optimized photocatalyst was 0.73%. This photocatalyst was active for solar water splitting and gave 0.33% solar-to-hydrogen energy conversion efficiency (STH). Notably, water splitting proceeded giving 0.035% STH under visible light (λ > 440 nm) in a solar spectrum. Additionally, Rh, Ru, and Cr-doped SrTiO3 photocatalysts were also successfully developed for highly efficient water splitting under visible light irradiation by application of the strategies of small amounts of doping, flux treatment with SrCl2 with Al2O3 addition, and loading of a RhCrO x cocatalyst.
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Affiliation(s)
- Kyohei Kaiya
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
| | - Yoshiya Ueki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
| | - Hiromasa Kawamoto
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
| | - Kenta Watanabe
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
| | - Shunya Yoshino
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
| | - Yuichi Yamaguchi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
- Carbon Value Research Center, Research Institute for Science and Technology, Tokyo University of Science Noda-shi Chiba-ken 278-8510 Japan
| | - Akihiko Kudo
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Shinjuku-ku Tokyo 162-8601 Japan
- Carbon Value Research Center, Research Institute for Science and Technology, Tokyo University of Science Noda-shi Chiba-ken 278-8510 Japan
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3
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Galvão RA, Nandy S, Hirako A, Otsuki T, Nakabayashi M, Lu D, Hisatomi T, Domen K. Nanoparticulate TiN Loading to Promote Z-Scheme Water Splitting Using a Narrow-Bandgap Nonoxide-Based Photocatalyst Sheet. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311170. [PMID: 38377301 DOI: 10.1002/smll.202311170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/06/2024] [Indexed: 02/22/2024]
Abstract
Some oxide-based particulate photocatalyst sheets exhibit excellent activity during the water-splitting reaction. The replacement of oxide photocatalysts with narrow-bandgap photocatalysts based on nonoxides could provide the higher solar-to-hydrogen energy conversion efficiencies that are required for practical implementation. Unfortunately, the activity of nonoxide-based photocatalyst sheets is low in many cases, indicating the need for strategies to improve the quality of nonoxide photocatalysts and the charge transfer process. In this work, single-crystalline particulate SrTaO2N is studied as an oxygen evolution photocatalyst for photocatalyst sheets applied to Z-scheme water splitting, in combination with La5Ti2Cu0.9Ag0.1O7S5 and Au as the hydrogen evolution photocatalyst and conductive layer, respectively. The loading of SrTaO2N with CoOx provided increases activity during photocatalytic water oxidation, giving an apparent quantum yield of 15.7% at 420 nm. A photocatalyst sheet incorporating CoOx-loaded SrTaO2N is also found to promote Z-scheme water splitting under visible light. Notably, the additional loading of nanoparticulate TiN on the CoOx-loaded SrTaO2N improves the water splitting activity by six times because the TiN promotes electron transfer from the SrTaO2N particles to the Au layer. This work demonstrates key concepts related to the improvement of nonoxide-based photocatalyst sheets based on facilitating the charge transfer process through appropriate surface modifications.
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Affiliation(s)
- Rhauane Almeida Galvão
- Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Swarnava Nandy
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Akio Hirako
- Graduate School of Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Takehiro Otsuki
- Graduate School of Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Daling Lu
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
- PRESTO, JST, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
- Department of Chemistry, Kyung Hee University, Seoul, 130-701, Republic of Korea
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4
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Wang X, Zhang B, Zhang J, Jiang X, Liu K, Wang H, Yuan X, Xu H, Zheng Y, Ma G, Zhong C. Conformal and conductive biofilm-bridged artificial Z-scheme system for visible light-driven overall water splitting. SCIENCE ADVANCES 2024; 10:eadn6211. [PMID: 38865453 PMCID: PMC11168464 DOI: 10.1126/sciadv.adn6211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 05/07/2024] [Indexed: 06/14/2024]
Abstract
Semi-artificial Z-scheme systems offer promising potential toward efficient solar-to-chemical conversion, yet sustainable and stable designs are currently lacking. Here, we developed a sustainable hybrid Z-scheme system capable for visible light-driven overall water splitting by integrating the durability of inorganic photocatalysts with the interfacial adhesion and regenerative property of bacterial biofilms. The Z-scheme configuration is fabricated by drop casting a mixture of photocatalysts onto a glass plate, followed by the growth of biofilms for conformal conductive paste through oxidative polymerization of pyrrole molecules. Notably, the system exhibited scalability indicated by consistent catalytic efficiency across various sheet areas, resistance observed by remarkable maintaining of photocatalytic efficiency across a range of background pressures, and high stability as evidenced by minimal decay of photocatalytic efficiency after 100-hour reaction. Our work thus provides a promising avenue toward sustainable and high-efficiency artificial photosynthesis, contributing to the broader goal of sustainable energy solutions.
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Affiliation(s)
- Xinyu Wang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Shenzhen Key Laboratory of Materials Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Boyang Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jicong Zhang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Shenzhen Key Laboratory of Materials Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiaoyu Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Kaiwei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Haifeng Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xinyi Yuan
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Shenzhen Key Laboratory of Materials Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Haiyi Xu
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Shenzhen Key Laboratory of Materials Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yijun Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Guijun Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Chao Zhong
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Shenzhen Key Laboratory of Materials Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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5
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Wang H, Wang F, Zhang S, Shen J, Zhu X, Cui Y, Li P, Lin C, Li X, Xiao Q, Luo W. Ice-Templated Synthesis of Atomic Cluster Cocatalyst with Regulable Coordination Number for Enhanced Photocatalytic Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400764. [PMID: 38415407 DOI: 10.1002/adma.202400764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/23/2024] [Indexed: 02/29/2024]
Abstract
Supported metal catalysts have been exploited in various applications. Among them, cocatalyst supported on photocatalyst is essential for activation of photocatalysis. However, cocatalyst decoration in a controllable fashion to promote intrinsic activity remains challenging. Herein, a versatile method is developed for cocatalyst synthesis using an ice-templating (ICT) strategy, resulting in size control from single-atom (SA), and atomic clusters (AC) to nanoparticles (NP). Importantly, the coordination numbers (CN) of decorated AC cocatalysts are highly controllable, and this ICT method applies to various metals and photocatalytic substrates. Taking narrow-band gap Ga-doped La5Ti2Cu0.9Ag0.1O7S5 (LTCA) photocatalyst as an example, supported Ru AC/LTCA catalysts with regulable Ru CNs have been prepared, delivering significantly enhanced activities compared to Ru SA and Ru NPs supported on LTCA. Specifically, Ru(CN = 3.4) AC/LTCA with an average CN of Ru─Ru bond measured to be ≈3.4 exhibits excellent photocatalytic H2 evolution rate (578 µmol h-1) under visible light irradiation. Density functional theory calculation reveals that the modeled Ru(CN = 3) atomic cluster cocatalyst possesses favorable electronic properties and available active sites for the H2 evolution reaction.
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Affiliation(s)
- Haifeng Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Fan Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Shengjia Zhang
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jing Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Xiaolin Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Yuanyuan Cui
- Shimadzu (China) Co., Ltd., Shanghai, 200233, P. R. China
| | - Pengfei Li
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- National Energy R&D Center for Coal to Liquid Fuels, Synfuels China Technology Co., Ltd, Beijing, 101407, P. R. China
| | - Chao Lin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Xiaopeng Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Qi Xiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
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6
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Lin L, Ma Y, Zettsu N, Vequizo JJM, Gu C, Yamakata A, Hisatomi T, Takata T, Domen K. Carbon Nanotubes as a Solid-State Electron Mediator for Visible-Light-Driven Z-Scheme Overall Water Splitting. J Am Chem Soc 2024; 146:14829-14834. [PMID: 38748984 PMCID: PMC11141554 DOI: 10.1021/jacs.4c03437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/07/2024] [Accepted: 05/07/2024] [Indexed: 05/30/2024]
Abstract
So-called Z-scheme systems, which typically comprise an H2 evolution photocatalyst (HEP), an O2 evolution photocatalyst (OEP), and an electron mediator, represent a promising approach to solar hydrogen production via photocatalytic overall water splitting (OWS). The electron mediator transferring photogenerated charges between the HEP and OEP governs the performance of such systems. However, existing electron mediators suffer from low stability, corrosiveness to the photocatalysts, and parasitic light absorption. In the present work, carbon nanotubes (CNTs) were shown to function as an effective solid-state electron mediator in a Z-scheme OWS system. Based on the high stability and good charge transfer characteristics of CNTs, this system exhibited superior OWS performance compared with other systems using more common electron mediators. The as-constructed system evolved stoichiometric amounts of H2 and O2 at near-ambient pressure with a solar-to-hydrogen energy conversion efficiency of 0.15%. The OWS reaction was also promoted in the case that this CNT-based Z-scheme system was immobilized on a substrate. Hence, CNTs are a viable electron mediator material for large-scale Z-scheme OWS systems.
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Affiliation(s)
- Lihua Lin
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Yiwen Ma
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Nobuyuki Zettsu
- Department
of Materials Chemistry, Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan
- Energy
Land-scape Architectonics Brain Bank, Shinshu
University, Nagano 380-8553, Japan
| | - Junie Jhon M. Vequizo
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Chen Gu
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Akira Yamakata
- Faculty
of Natural Science and Technology, Okayama
University, Kita-ku, Okayama 700-8530, Japan
| | - Takashi Hisatomi
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Tsuyoshi Takata
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
| | - Kazunari Domen
- Research
Initiative for Supra-Materials, Interdisciplinary
Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan
- Office
of University Professors, The University
of Tokyo, Tokyo 113-8656, Japan
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7
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Higashi T, Domen K. Interfacial Design of Particulate Photocatalyst Materials for Green Hydrogen Production. CHEMSUSCHEM 2024:e202400663. [PMID: 38794839 DOI: 10.1002/cssc.202400663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 05/26/2024]
Abstract
Green hydrogen production using particulate photocatalyst materials has attracted much attention in recent years because this process could potentially lead to inexpensive and scalable solar-to-chemical energy conversion systems. Although the development of efficient particulate photocatalysts enabling one-step overall water splitting (OWS) with solar-to-hydrogen efficiencies in excess of 10 % remains challenging, promising photocatalyst candidates exhibiting OWS activity have been demonstrated. This review provides a comprehensive introduction to the solar-to-hydrogen energy conversion process of semiconductor photocatalyst materials and highlights recent advances in photocatalytic OWS via both one-step and two-step photoexcitation processes. The review also covers recent developments in the photocatalytic OWS of SrTiO3, including the establishment of large-scale photocatalytic systems, interfacial design using cocatalysts to enhance water splitting activity, and its photoelectrochemical (PEC) properties at the electrified solid/liquid interface. In addition, there is a special focus on visible-light-absorbing oxynitride and oxysulfide particulate photocatalysts with absorption edges near 600 nm. Methods for photocatalyst preparation and surface modification, as well as PEC properties, are also discussed. The semiconductor properties of particulate photocatalysts obtained from photoelectroanalytical evaluations using particulate photoelectrodes are evaluated. This review is intended to provide guidelines for the future development of particulate photocatalysts capable of efficient and stable OWS.
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Affiliation(s)
- Tomohiro Higashi
- Institute for Tenure Track Promotion, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki, 889-2192, Japan
| | - Kazunari Domen
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8533, Japan
- Department of Chemistry, Kyung Hee University, Seoul, 130-701, Republic of, Korea
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8
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Katayama K. Pattern-illumination time-resolved phase microscopy and its applications for photocatalytic and photovoltaic materials. Phys Chem Chem Phys 2024; 26:9783-9815. [PMID: 38497609 DOI: 10.1039/d3cp06211b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Pattern-illumination time-resolved phase microscopy (PI-PM) is a technique used to study the microscopic charge carrier dynamics in photocatalytic and photovoltaic materials. The method involves illuminating a sample with a pump light pattern, which generates charge carriers and they decay subsequently due to trapping, recombination, and transfer processes. The distribution of photo-excited charge carriers is observed through refractive index changes using phase-contrast imaging. In the PI-PM method, the sensitivity of the refractive index change is enhanced by adjusting the focus position, the method takes advantage of photo-excited charge carriers to observe non-radiative processes, such as charge diffusion, trapping in defect/surface states, and interfacial charge transfer of photocatalytic and photovoltaic reactions. The quality of the image sequence is recovered using various informatics calculations. Categorizing and mapping different types of charge carriers based on their response profiles using clustering analysis provides spatial information on charge carrier types and the identification of local sites for efficient and inefficient photo-induced reactions, providing valuable information for the design and optimization of photocatalytic materials such as the cocatalyst effect.
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Affiliation(s)
- Kenji Katayama
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
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9
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Kumar V, Prasad Singh G, Kumar M, Kumar A, Singh P, Ansu AK, Sharma A, Alam T, Yadav AS, Dobrotă D. Nanocomposite Marvels: Unveiling Breakthroughs in Photocatalytic Water Splitting for Enhanced Hydrogen Evolution. ACS OMEGA 2024; 9:6147-6164. [PMID: 38371806 PMCID: PMC10870388 DOI: 10.1021/acsomega.3c07822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/02/2024] [Accepted: 01/05/2024] [Indexed: 02/20/2024]
Abstract
An overview of the significant innovations in photocatalysts for H2 development, photocatalyst selection criteria, and photocatalytic modifications to improve the photocatalytic activity was examined in this Review, as well as mechanisms and thermodynamics. A variety of semiconductors have been examined in a structured fashion, such as TiO2-, g-C3N4-, graphene-, sulfide-, oxide-, nitride-, oxysulfide-, oxynitrides, and cocatalyst-based photocatalysts. The techniques for enhancing the compatibility of metals and nonmetals is discussed in order to boost photoactivity within visible light irradiation. In particular, further deliberation has been carried out on the development of heterojunctions, such as type I, type II, and type III, along with Z-systems, and S-scheme systems. It is important to thoroughly investigate these issues in the sense of visible light irradiations to enhance the efficacy of photocatalytic action. In fact, another advancement in this area may include hiring mediators including grapheme oxide and metals to establish indirect Z-scheme montages with a correct band adjustment. The potential consideration of reaction chemology, mass transfer, kinetics of reactions, restriction of light diffusion, and the process and selection of suitable light and photoreactor also will optimize sustainable hydrogen output efficiency and selectivity.
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Affiliation(s)
- Vikash Kumar
- Department
of Electronics and Communication Engineering, RV Institute of Technology and Management, Bangalore, Karnataka 560076, India
| | - Gajendra Prasad Singh
- Department
of Metallurgical and Material Engineering, Central University Jharkhand, Ranchi, Jharkhand 835205, India
| | - Manish Kumar
- Department
of Mechanical Engineering, RV Institute
of Technology and Management, Bangalore, Karnataka 560076, India
| | - Amit Kumar
- Centre
for Augmented Intelligence and Design, Department of Mechanical Engineering, Sri Eshwar College of Engineering, Coimbatore, Tamil Nadu 641202, India
| | - Pooja Singh
- Department
of Mechanical Engineering, Manipal University
Jaipur, Jaipur, Rajasthan 303007, India
| | - Alok Kumar Ansu
- Department
of Mechanical Engineering, Manipal University
Jaipur, Jaipur, Rajasthan 303007, India
| | - Abhishek Sharma
- Department
of Mechanical Engineering, BIT Sindri, Dhanbad Jharkhand 828123, India
| | - Tabish Alam
- CSIR-Central
Building Research Institute, Roorkee, Uttarakhand 247667, India
| | - Anil Singh Yadav
- Department
of Mechanical Engineering, Bakhtiyarpur
College of Engineering (Science, Technology and Technical Education
Department, Government of Bihar), Bakhtiyarpur, Bihar 803212, India
| | - Dan Dobrotă
- Faculty
of Engineering, Department of Industrial Engineering and Management, Lucian Blaga University of Sibiu, 550024 Sibiu, Romania
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10
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Lin L, Ma Y, Vequizo JJM, Nakabayashi M, Gu C, Tao X, Yoshida H, Pihosh Y, Nishina Y, Yamakata A, Shibata N, Hisatomi T, Takata T, Domen K. Efficient and stable visible-light-driven Z-scheme overall water splitting using an oxysulfide H 2 evolution photocatalyst. Nat Commun 2024; 15:397. [PMID: 38195692 PMCID: PMC10776739 DOI: 10.1038/s41467-024-44706-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024] Open
Abstract
So-called Z-scheme systems permit overall water splitting using narrow-bandgap photocatalysts. To boost the performance of such systems, it is necessary to enhance the intrinsic activities of the hydrogen evolution photocatalyst and oxygen evolution photocatalyst, promote electron transfer from the oxygen evolution photocatalyst to the hydrogen evolution photocatalyst, and suppress back reactions. The present work develop a high-performance oxysulfide photocatalyst, Sm2Ti2O5S2, as an hydrogen evolution photocatalyst for use in a Z-scheme overall water splitting system in combination with BiVO4 as the oxygen evolution photocatalyst and reduced graphene oxide as the solid-state electron mediator. After surface modifications of the photocatalysts to promote charge separation and redox reactions, this system is able to split water into hydrogen and oxygen for more than 100 hours with a solar-to-hydrogen energy conversion efficiency of 0.22%. In contrast to many existing photocatalytic systems, the water splitting activity of the present system is only minimally reduced by increasing the background pressure to 90 kPa. These results suggest characteristics suitable for applications under practical operating conditions.
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Affiliation(s)
- Lihua Lin
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Yiwen Ma
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Junie Jhon M Vequizo
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Mamiko Nakabayashi
- Institute for Engineering Innovation, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Chen Gu
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Xiaoping Tao
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Hiroaki Yoshida
- Science and Innovation Center, Mitsubishi Chemical Corporation, Aoba-ku, Yokohama-shi, Kanagawa, Japan
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), Tokyo, Japan
| | - Yuriy Pihosh
- Office of University Professors, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University, Kita-ku, Okayama, Japan
| | - Akira Yamakata
- Faculty of Natural Science and Technology, Okayama University, Kita-ku, Okayama, Japan
| | - Naoya Shibata
- Institute for Engineering Innovation, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Tsuyoshi Takata
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano, Japan.
- Office of University Professors, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
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11
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Wei Y, Zhang Z, Wang W, Song Z, Cai M, Sun S. Photocatalytic Z-scheme Overall Water Splitting: Insight into Different Optimization Strategies for Powder Suspension and Particulate Sheet Systems. Chemphyschem 2023; 24:e202300216. [PMID: 37232190 DOI: 10.1002/cphc.202300216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 05/27/2023]
Abstract
Achieving solar light-driven photocatalytic overall water splitting is the ideal and ultimate goal for solving energy and environment issues. Photocatalytic Z-scheme overall water splitting has undergone considerable development in recent years; specific approaches include a powder suspension Z-scheme system with a redox shuttle and a particulate sheet Z-scheme system. Of these, a particulate sheet has achieved a benchmark solar-to-hydrogen efficiency exceeding 1.1 %. Nevertheless, owing to intrinsic differences in the components, structure, operating environment, and charge transfer mechanism, there are several differences between the optimization strategies for a powder suspension and particulate sheet Z-scheme. Unlike a powder suspension Z-scheme with a redox shuttle, the particulate sheet Z-scheme system is more like a miniaturized and parallel p/n photoelectrochemical cell. In this review, we summarize the optimization strategies for a powder suspension Z-scheme with a redox shuttle and particulate sheet Z-scheme. In particular, attention has been focused on choosing appropriate redox shuttle and electron mediator, facilitating the redox shuttle cycle, avoiding redox mediator-induced side reactions, and constructing a particulate sheet. Challenges and prospects in the development of efficient Z-scheme overall water splitting are also briefly discussed.
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Affiliation(s)
- Yuxue Wei
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, China
| | - Zhiyuan Zhang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, China
| | - Wenjing Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, China
| | - Zhimin Song
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Mengdie Cai
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, China
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, China
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12
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Ma Y, Lin L, Takata T, Hisatomi T, Domen K. A perspective on two pathways of photocatalytic water splitting and their practical application systems. Phys Chem Chem Phys 2023; 25:6586-6601. [PMID: 36789746 DOI: 10.1039/d2cp05427b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Photocatalytic water splitting has been widely studied as a means of converting solar energy into hydrogen as an ideal energy carrier in the future. Systems for photocatalytic water splitting can be divided into one-step excitation and two-step excitation processes. The former uses a single photocatalyst while the latter uses a pair of photocatalysts to separately generate hydrogen and oxygen. Significant progress has been made in each type of photocatalytic water splitting system in recent years, although improving the solar-to-hydrogen energy conversion efficiency and constructing practical technologies remain important tasks. This perspective summarizes recent advances in the field of photocatalytic overall water splitting, with a focus on the design of photocatalysts, co-catalysts and reaction systems. The associated challenges and potential approaches to practical solar hydrogen production via photocatalytic water splitting are also presented.
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Affiliation(s)
- Yiwen Ma
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan.
| | - Lihua Lin
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan.
| | - Tsuyoshi Takata
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan.
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan.
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan. .,Office of University Professors, The University of Tokyo, Tokyo 113-86556, Japan
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13
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Zhuo Z, Wang X, Shen C, Cai M, Jiang Y, Xue Z, Fu Z, Wang Q, Wei Y, Sun S. Construction of TiO 2 /SrTiO 3 Heterojunction Derived from Monolayer Ti 3 C 2 MXene for Efficient Photocatalytic Overall Water Splitting. Chemistry 2023; 29:e202203450. [PMID: 36445821 DOI: 10.1002/chem.202203450] [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: 11/07/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 11/30/2022]
Abstract
Construction of heterojunction at the atomic scale to ensure efficient charge separation for improvement of photocatalytic water splitting is challenging. Herein, a facile hydrothermal method has been applied for the in situ fabrication of TiO2 /SrTiO3 heterojunction, using the monolayer Ti3 C2 MXene as the template and reactant. It is found that the sample with the hydrothermal reaction time of 60 min exhibits the highest H2 evolution rate with the sacrificial reagent, due to the efficient charge separation of TiO2 /SrTiO3 heterojunction as Ti3 C2 derivative. In addition, the sample shows the best overall water splitting performance at a hydrothermal reaction time of 120 min, where TiO2 is nearly converted to SrTiO3 , due to the fast kinetic process and low structural defects of SrTiO3 . This work not only provides a simple strategy for the fabrication of heterojunction photocatalysts but also demonstrates the difference in optimization of half-reaction and overall water splitting reaction.
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Affiliation(s)
- Zhenzhen Zhuo
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Xue Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Cheng Shen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Mengdie Cai
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Yong Jiang
- Shanghai Synchrotron Radiation Facility, Zhangjiang National Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Zhaoming Xue
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Zhiyuan Fu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Qi Wang
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Yuxue Wei
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
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14
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Chen S, Nandy S, Vequizo JJM, Hisatomi T, Nakabayashi M, Pan Z, Xiao Q, Wang Z, Lin L, Sun S, Kato K, Yamakata A, Shibata N, Takata T, Zhang F, Domen K. Promoted Utilization of Charge Carriers in La 5Ti 2Cu 0.9Ag 0.1O 7S 5-Based Photocatalyst Sheets for Efficient Z-Scheme Overall Water Splitting. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Shanshan Chen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
- School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Swarnava Nandy
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Junie Jhon M. Vequizo
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Zhenhua Pan
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Qi Xiao
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Zheng Wang
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Lihua Lin
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Kosaku Kato
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Akira Yamakata
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Naoya Shibata
- Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tsuyoshi Takata
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
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15
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Patterning alternate TiO 2 and Cu 2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting. Sci Bull (Beijing) 2022; 67:2420-2427. [PMID: 36566065 DOI: 10.1016/j.scib.2022.11.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022]
Abstract
Semiconductor heterostructures mediated by electrical conductors are very promising for Z-scheme photocatalytic water splitting. In contrast to conventional particulate heterostructures, alternate TiO2 and Cu2O film stripes patterned parallel on a fluorine-doped tin oxide (FTO) conductive substrate was fabricated as a model film photocatalyst to study the characteristics of the photogenerated charge transfer process. The Z-scheme transfer process with an effective transport distance of up to 5 μm occurs only in regions distant from the TiO2/Cu2O strip edges through the FTO substrate from the bottom. In contrast, the transfer of charge around their contact regions follows the conventional transfer process through the TiO2/Cu2O strip interface. These results indicate that the Z-scheme transfer process occurring in such a large region dominates the charge transfer processes in the TiO2/FTO/Cu2O pattern film heterostructure. Importantly, unlike the single component film, which is inactive for photocatalytic overall water splitting, the modified TiO2/Cu2O pattern film can induce photocatalytic overall water splitting at a stoichiometric H2/O2 ratio close to 2:1. These findings have significant implications in designing efficient heterostructures by employing a Z-scheme charge transfer process.
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16
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Pan Z, Nandal V, Pihosh Y, Higashi T, Liu T, Röhr JA, Seki K, Chu C, Domen K, Katayama K. Elucidating the Role of Surface Energetics on Charge Separation during Photoelectrochemical Water Splitting. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Zhenhua Pan
- Department of Applied Chemistry, Faculty of Science and Technology, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo112-8551, Japan
| | - Vikas Nandal
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki305-8565, Japan
| | - Yuriy Pihosh
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo113-8656, Japan
| | - Tomohiro Higashi
- Institute for Tenure Track Promotion, University of Miyazaki, Nishi 1-1 Gakuen-Kibanadai, Miyazaki889-2192, Japan
| | - Tian Liu
- Faculty of Agriculture, Life, and Environmental Sciences, Zhejiang University, Hangzhou310058, China
| | - Jason A. Röhr
- Singh Center for Nanotechnology, School of Engineering & Applied Sciences, University of Pennsylvania, Philadelphia19104, United States
| | - Kazuhiko Seki
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki305-8565, Japan
| | - Chiheng Chu
- Faculty of Agriculture, Life, and Environmental Sciences, Zhejiang University, Hangzhou310058, China
| | - Kazunari Domen
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo113-8656, Japan
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano380-8553, Japan
| | - Kenji Katayama
- Department of Applied Chemistry, Faculty of Science and Technology, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo112-8551, Japan
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17
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Ravi P, Noh J. Photocatalytic Water Splitting: How Far Away Are We from Being Able to Industrially Produce Solar Hydrogen? Molecules 2022; 27:molecules27217176. [PMID: 36364002 PMCID: PMC9657347 DOI: 10.3390/molecules27217176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
Solar water splitting (SWS) has been researched for about five decades, but despite successes there has not been a big breakthrough advancement. While the three fundamental steps, light absorption, charge carrier separation and diffusion, and charge utilization at redox sites are given a great deal of attention either separately or simultaneously, practical considerations that can help to increase efficiency are rarely discussed or put into practice. Nevertheless, it is possible to increase the generation of solar hydrogen by making a few little but important adjustments. In this review, we talk about various methods for photocatalytic water splitting that have been documented in the literature and importance of the thin film approach to move closer to the large-scale photocatalytic hydrogen production. For instance, when comparing the film form of the identical catalyst to the particulate form, it was found that the solar hydrogen production increased by up to two orders of magnitude. The major topic of this review with thin-film forms is, discussion on several methods of increased hydrogen generation under direct solar and one-sun circumstances. The advantages and disadvantages of thin film and particle technologies are extensively discussed. In the current assessment, potential approaches and scalable success factors are also covered. As demonstrated by a film-based approach, the local charge utilization at a zero applied potential is an appealing characteristic for SWS. Furthermore, we compare the PEC-WS and SWS for solar hydrogen generation and discuss how far we are from producing solar hydrogen on an industrial scale. We believe that the currently employed variety of attempts may be condensed to fewer strategies such as film-based evaluation, which will create a path to address the SWS issue and achieve sustainable solar hydrogen generation.
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Affiliation(s)
- Parnapalle Ravi
- Bionano Research Institute, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Korea
| | - Jinseo Noh
- Department of Physics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Korea
- Correspondence: ; Tel.: +82-317505611
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18
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Shen R, Zhang L, Li N, Lou Z, Ma T, Zhang P, Li Y, Li X. W–N Bonds Precisely Boost Z-Scheme Interfacial Charge Transfer in g-C 3N 4/WO 3 Heterojunctions for Enhanced Photocatalytic H 2 Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02416] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rongchen Shen
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Lu Zhang
- School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zaizhu Lou
- Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Tianyi Ma
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Peng Zhang
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Youji Li
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000, China
| | - Xin Li
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
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19
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Chugenji T, Pan Z, Nandal V, Seki K, Domen K, Katayama K. Local charge carrier dynamics of a particulate Ga-doped La 5Ti 2Cu 0.9Ag 0.1O 7S 5 photocatalyst and the impact of Rh cocatalysts. Phys Chem Chem Phys 2022; 24:17485-17495. [PMID: 35822609 DOI: 10.1039/d2cp02808e] [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
Visible-light responsive photocatalytic materials are expected to be deployed for practical use in photocatalytic water splitting. One of the promising materials as a p-type semiconductor, oxysulfides, was investigated in terms of the local charge carrier behavior for each particle by using a home-built time-resolved microscopic technique in combination with clustering analysis. We could differentiate electron and hole trapping to the surface states and the following recombination on a micron-scale from the nanosecond to microsecond order. The map of the charge carrier type revealed that charge trapping sites for electrons and holes were spatially separated within each particle/aggregate. Furthermore, the effect of the rhodium cocatalyst was recognized as a new electron pathway, trapping to the rhodium site and the following recombination, which was delayed compared with the original electron recombination process. The Rh effect was discussed based on the phenomenological simulation, revealing a possible reason for the decay was due to the anisotropic diffusion of charge carriers in oxysulfides or the interfacial energy barrier at the interface.
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Affiliation(s)
- Tatsuya Chugenji
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Zhenhua Pan
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Vikas Nandal
- Global Zero Emission Research Center (GZR), National Institute of Advanced Industrial Science and Technology (AIST), Onogawa 16-1 AIST West, Tsukuba 305-8569, Japan
| | - Kazuhiko Seki
- Global Zero Emission Research Center (GZR), National Institute of Advanced Industrial Science and Technology (AIST), Onogawa 16-1 AIST West, Tsukuba 305-8569, Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 380-8553, Japan. .,Office of University Professors, The University of Tokyo, Tokyo 113-8656, Japan
| | - Kenji Katayama
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
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20
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Shi A, Sun D, Zhang X, Ji S, Wang L, Li X, Zhao Q, Niu X. Direct Z-Scheme Photocatalytic System: Insights into the Formative Factors of Photogenerated Carriers Transfer Channel from Ultrafast Dynamics. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Anqi Shi
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Dazhong Sun
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Xuemei Zhang
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Shilei Ji
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Longlu Wang
- School of Optoelectronic Engineering and Grüenberg Research Centre, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Xing’ao Li
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Qiang Zhao
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
- School of Optoelectronic Engineering and Grüenberg Research Centre, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Xianghong Niu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
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21
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Tao X, Zhao Y, Wang S, Li C, Li R. Recent advances and perspectives for solar-driven water splitting using particulate photocatalysts. Chem Soc Rev 2022; 51:3561-3608. [PMID: 35403632 DOI: 10.1039/d1cs01182k] [Citation(s) in RCA: 125] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The conversion and storage of solar energy to chemical energy via artificial photosynthesis holds significant potential for optimizing the energy situation and mitigating the global warming effect. Photocatalytic water splitting utilizing particulate semiconductors offers great potential for the production of renewable hydrogen, while this cross-road among biology, chemistry, and physics features a topic with fascinating interdisciplinary challenges. Progress in photocatalytic water splitting has been achieved in recent years, ranging from fundamental scientific research to pioneering scalable practical applications. In this review, we focus mainly on the recent advancements in terms of the development of new light-absorption materials, insights and strategies for photogenerated charge separation, and studies towards surface catalytic reactions and mechanisms. In particular, we emphasize several efficient charge separation strategies such as surface-phase junction, spatial charge separation between facets, and polarity-induced charge separation, and also discuss their unique properties including ferroelectric and photo-Dember effects on spatial charge separation. By integrating time- and space-resolved characterization techniques, critical issues in photocatalytic water splitting including photoinduced charge generation, separation and transfer, and catalytic reactions are analyzed and reviewed. In addition, photocatalysts with state-of-art efficiencies in the laboratory stage and pioneering scalable solar water splitting systems for hydrogen production using particulate photocatalysts are presented. Finally, some perspectives and outlooks on the future development of photocatalytic water splitting using particulate photocatalysts are proposed.
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Affiliation(s)
- Xiaoping Tao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, Dalian, 116023, China.
| | - Yue Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, Dalian, 116023, China.
| | - Shengyang Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, Dalian, 116023, China.
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, Dalian, 116023, China. .,University of Chinese Academy of Sciences, China
| | - Rengui Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Zhongshan Road 457, Dalian, 116023, China.
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22
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Jakhar M, Kumar A, Ahluwalia PK, Tankeshwar K, Pandey R. Engineering 2D Materials for Photocatalytic Water-Splitting from a Theoretical Perspective. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2221. [PMID: 35329672 PMCID: PMC8954018 DOI: 10.3390/ma15062221] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/06/2022] [Accepted: 03/14/2022] [Indexed: 12/19/2022]
Abstract
Splitting of water with the help of photocatalysts has gained a strong interest in the scientific community for producing clean energy, thus requiring novel semiconductor materials to achieve high-yield hydrogen production. The emergence of 2D nanoscale materials with remarkable electronic and optical properties has received much attention in this field. Owing to the recent developments in high-end computation and advanced electronic structure theories, first principles studies offer powerful tools to screen photocatalytic systems reliably and efficiently. This review is organized to highlight the essential properties of 2D photocatalysts and the recent advances in the theoretical engineering of 2D materials for the improvement in photocatalytic overall water-splitting. The advancement in the strategies including (i) single-atom catalysts, (ii) defect engineering, (iii) strain engineering, (iv) Janus structures, (v) type-II heterostructures (vi) Z-scheme heterostructures (vii) multilayer configurations (viii) edge-modification in nanoribbons and (ix) the effect of pH in overall water-splitting are summarized to improve the existing problems for a photocatalytic catalytic reaction such as overcoming large overpotential to trigger the water-splitting reactions without using cocatalysts. This review could serve as a bridge between theoretical and experimental research on next-generation 2D photocatalysts.
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Affiliation(s)
- Mukesh Jakhar
- Department of Physics, Central University of Punjab, Bathinda 151401, India;
| | - Ashok Kumar
- Department of Physics, Central University of Punjab, Bathinda 151401, India;
| | | | - Kumar Tankeshwar
- Department of Physics and Astrophysics, Central University of Haryana, Mahendragarh 123031, India;
| | - Ravindra Pandey
- Department of Physics, Michigan Technological University, Houghton, MI 49931, USA;
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23
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Zhang Z, Li F, Li G, Li R, Wang Y, Wang Y, Zhang X, Zhang L, Li F, Liu J, Fan C. Cu-doped MIL-101(Fe) with enhanced photocatalytic nitrogen fixation performance. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123041] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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24
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Gao Y, Fu C, Hu W, Yang J. Designing Direct Z-Scheme Heterojunctions Enabled by Edge-Modified Phosphorene Nanoribbons for Photocatalytic Overall Water Splitting. J Phys Chem Lett 2022; 13:1-11. [PMID: 34941268 DOI: 10.1021/acs.jpclett.1c03527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Direct Z-scheme photocatalyst possess promising potential to utilize solar radiation for photocatalytic overall water splitting; however, the design and characterization remain challenging. Here, we construct and verify a direct Z-scheme heterojunction using edge-modified phosphorene-nanoribbons (X-PNRs, where X = OH and OCN) with first-principles ground-state and excited-state density functional theory (DFT) calculations. The ground-state calculations provide fundamental properties such as geometric structure and band alignment. The linear-response time-dependent DFT (LR-TDDFT) calculations exhibit the photogenerated charge distribution and demonstrate the generation of interlayer excitons in heterojunctions, which are advantageous to the electron-hole recombination in Z-scheme heterojunctions. The ultrafast charge transfer at the interface studied by time-dependent ab initio nonadiabatic molecular dynamics (NAMD) simulations indicates that interlayer electron-hole recombination is prior to intralayer recombination for the OH/OCN-PNRs heterojunction, showing the characteristics of a Z-scheme heterojunction. Therefore, our computational work provides a universal strategy to design direct Z-scheme heterojunction photocatalysts for overall water splitting.
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Affiliation(s)
- Yunzhi Gao
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230 026, China
| | - Cenfeng Fu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230 026, China
| | - Wei Hu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230 026, China
| | - Jinlong Yang
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230 026, China
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25
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Wang Y, Hu Z, Wang W, He H, Deng L, Zhang Y, Huang J, Zhao N, Yu G, Liu YN. Design of well-defined shell-core covalent organic frameworks/metal sulfide as an efficient Z-scheme heterojunction for photocatalytic water splitting. Chem Sci 2021; 12:16065-16073. [PMID: 35024128 PMCID: PMC8672765 DOI: 10.1039/d1sc05893b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/21/2021] [Indexed: 11/24/2022] Open
Abstract
Development of a covalent-organic framework (COF)-based Z-scheme heterostructure is a promising strategy for solar energy driven water splitting, but the construction of a COF-based Z-scheme heterostructure with well-defined architecture, large contact area and intimate contact interfaces is scarce. Herein, we fabricated a direct Z-scheme heterostructure COF-metal sulfide hybrid (T-COF@CdS) with shell-core architecture by self-polymerization of 1,3,5-benzenetricarboxaldehyde and 2,4,6-tris(4-aminophenyl)-1,3,5-triazine in situ on CdS. The formed C-S chemical bonding between T-COF and CdS could provide a very tight and stable interface. Owing to the properly staggered band alignment, strong interfacial interaction and large interfacial contact area between T-COF and CdS, a Z-scheme route for charge separation and transfer is realized, resulting in electron accumulation in CdS for H2O reduction. The obtained Z-scheme heterostructure T-COF@CdS-3 exhibits a high apparent quantum efficiency of 37.8% under 365 nm monochromatic light irradiation, and long-term stability arising from shell-core structures in which the T-COF shell protects the catalytic centers of CdS against deactivation, as well as acts as oxidation sites to avoid the photocorrosion of CdS. This work provides a strategy for the construction of a shell-core direct Z-scheme heterostructure photocatalyst for water splitting with high performance.
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Affiliation(s)
- Yan Wang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - Zhao Hu
- State Key Laboratory of Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University Guiyang Guizhou 550025 China
| | - Wei Wang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - Haichuan He
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - Liu Deng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS Taiyuan Shanxi 030001 PR China
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - Jianhan Huang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - Ning Zhao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS Taiyuan Shanxi 030001 PR China
| | - Guipeng Yu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
| | - You-Nian Liu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 PR China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS Taiyuan Shanxi 030001 PR China
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26
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Nagakawa H, Nagata M. Photoreforming of Organic Waste into Hydrogen Using a Thermally Radiative CdO x/CdS/SiC Photocatalyst. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47511-47519. [PMID: 34582184 DOI: 10.1021/acsami.1c11888] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To achieve superior efficiency for photocatalytic reactions, it is necessary to utilize visible light, which accounts for most of the solar energy. Herein, by applying a photocatalytic reaction, we aimed to develop a method for generating hydrogen by reforming organic waste, which is discharged as part of domestic, agricultural, forestry, and industrial practice. In the prepared CdS/SiC composite photocatalyst, etching of the oxide film of SiC and oxidation of the atomic-level surface of CdS proceeded in an alkaline reaction solution to form a CdOx/CdS/SiC composite. This composite is stable under light irradiation in a high-temperature alkaline reaction solution and can steadily promote hydrogen production. CdOx/CdS/SiC exhibits absorption in the entire ultraviolet and visible light region. In particular, the visible light region on the long-wavelength side, which is derived from the crystal defect of SiC, was used for heat radiation, and it was effective in increasing the temperature of the reaction solution. The high-temperature alkaline reaction solution promoted the hydrolysis of organic wastes with high molecular weight. Elution of small organic molecules by this process facilitated the progress of photocatalytic reactions and improved the rate of hydrogen production. Furthermore, in the absorption region derived from the interband transition below 580 nm, electron transfer between SiC and CdS suppressed recombination and improved the photocatalytic activity. Particularly, we achieved a high quantum yield of almost 20% in the ultraviolet region of 380 nm, where electron transfer from SiC was remarkable. Even in the visible light region, 2.0% was achieved at 420 nm, indicating an activity superior to that of conventional photoreforming systems. Using the developed photocatalytic system, we succeeded in producing hydrogen by photoreforming organic waste, such as cellulosic biomass, animal biomass, and plastic, under sunlight. Therefore, it is possible to solve waste disposal, environmental, and energy problems using sustainable photocatalytic processes.
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Affiliation(s)
- Haruki Nagakawa
- Department of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science, 12-1 Ichigayafunagawara-cho, Shinjuku-ku, Tokyo 162-0826, Japan
| | - Morio Nagata
- Department of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science, 12-1 Ichigayafunagawara-cho, Shinjuku-ku, Tokyo 162-0826, Japan
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27
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Zhou Z, Springer MA, Geng W, Zhu X, Li T, Li M, Jing Y, Heine T. Rational Design of Two-Dimensional Binary Polymers from Heterotriangulenes for Photocatalytic Water Splitting. J Phys Chem Lett 2021; 12:8134-8140. [PMID: 34410139 DOI: 10.1021/acs.jpclett.1c02109] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
On the basis of first-principles calculations, we report the design of three two-dimensional (2D) binary honeycomb-kagome polymers composed of B- and N-centered heterotriangulenes with a periodically alternate arrangement as in hexagonal boron nitride. The 2D binary polymers with donor-acceptor characteristics are semiconductors with a direct band gap of 1.98-2.28 eV. The enhanced in-plane electron conjugation contributes to high charge carrier mobilities for both electrons and holes, about 6.70 and 0.24 × 103 cm2 V-1 s-1, respectively, for the 2D binary polymer with carbonyl bridges (2D CTPAB). With appropriate band edge alignment to match the water redox potentials and pronounced light adsorption for the ultraviolet and visible range of spectra, 2D CTPAB is predicted to be an effective photocatalyst/photoelectrocatalyst to promote overall water splitting.
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Affiliation(s)
- Zhenpei Zhou
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Maximilian A Springer
- Fakultät Chemie und Lebensmittelchemie, TU Dresden, Bergstraße 66c, 01062 Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Permoserstraße 15, 04318 Leipzig, Germany
| | - Weixiang Geng
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xinyue Zhu
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Tianchun Li
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Manman Li
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Jing
- Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Thomas Heine
- Fakultät Chemie und Lebensmittelchemie, TU Dresden, Bergstraße 66c, 01062 Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Permoserstraße 15, 04318 Leipzig, Germany
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28
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Chen S, Vequizo JJM, Pan Z, Hisatomi T, Nakabayashi M, Lin L, Wang Z, Kato K, Yamakata A, Shibata N, Takata T, Yamada T, Domen K. Surface Modifications of (ZnSe) 0.5(CuGa 2.5Se 4.25) 0.5 to Promote Photocatalytic Z-Scheme Overall Water Splitting. J Am Chem Soc 2021; 143:10633-10641. [PMID: 34235922 DOI: 10.1021/jacs.1c03555] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Charge separation is crucial for an efficient artificial photosynthetic process, especially for narrow-bandgap metal sulfides/selenides. The present study demonstrates the application of a p-n junction to particulate metal selenides to enhance photocatalytic Z-scheme overall water splitting (OWS). The constructed p-n junction of CdS-(ZnSe)0.5(CuGa2.5Se4.25)0.5 significantly boosted charge separation. A thin TiO2 coating layer also was introduced to inhibit photocorrosion of CdS and suppress the backward reaction of water formation from hydrogen and oxygen. By employing Pt-loaded TiO2/CdS-(ZnSe)0.5(CuGa2.5Se4.25)0.5 as a hydrogen evolution photocatalyst (HEP), we assembled a Z-scheme OWS system, together with BiVO4:Mo and Au as an oxygen evolution photocatalyst and electron mediator, respectively. An apparent quantum yield of 1.5% at 420 nm was achieved, which is by far the highest among reported particulate photocatalytic Z-scheme OWS systems with metal sulfides/selenides as HEPs. The present work demonstrates that a well-tailored p-n junction structure is effective for promoting charge separation in photocatalysis and opens new pathways for the development of efficient artificial photosynthesis systems involving narrow bandgap photocatalysts.
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Affiliation(s)
- Shanshan Chen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan.,School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300-350, China
| | - Junie Jhon M Vequizo
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Zhenhua Pan
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8656, Japan
| | - Lihua Lin
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Zheng Wang
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Kosaku Kato
- Graduate School of Engineering, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku, Nagoya 468-8511, Japan
| | - Akira Yamakata
- Graduate School of Engineering, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku, Nagoya 468-8511, Japan
| | - Naoya Shibata
- Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8656, Japan
| | - Tsuyoshi Takata
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Taro Yamada
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan.,Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
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29
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Synthesis of a Ga-doped La5Ti2Cu0.9Ag0.1O7S5 photocatalyst by thermal sulfidation for hydrogen evolution under visible light. J Catal 2021. [DOI: 10.1016/j.jcat.2021.05.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Nandy S, Savant SA, Haussener S. Prospects and challenges in designing photocatalytic particle suspension reactors for solar fuel processing. Chem Sci 2021; 12:9866-9884. [PMID: 34349960 PMCID: PMC8317641 DOI: 10.1039/d1sc01504d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/17/2021] [Indexed: 01/17/2023] Open
Abstract
Photocatalytic approaches for the production of solar hydrogen or hydrocarbons are interesting as they provide a sustainable alternative to fossil fuels. Research has been focused on water splitting and on the synthesis of photocatalyst materials and compounds, and their characterization. The material-related challenges include the synthesis and design of photocatalysts that can absorb visible light at a high quantum efficiency, cocatalysts that are selective and can accelerate the reduction and/or oxidation reactions, and protection layers that facilitate migration of the minority carriers to the surface-active sites while reducing charge recombination and photo-corrosion. Less attention has been paid to the conceptual design of reactors, and how design and coupled transport can affect the material choice and requirements. This perspective discusses the various possible conceptual designs for particle suspension reactors and the related implications on the material requirements to achieve high energy conversion efficiencies. We establish a link between the thermodynamic limits, materials requirements, and conceptual reactor designs, quantify changes in material requirements when more realistic operation and losses are considered, and compare the theory-derived guidelines with the ongoing materials research activity. This perspective discusses the various possible conceptual designs for particle suspension reactors and the related implications on the material and reactor requirements to achieve high STH conversion efficiencies.![]()
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Affiliation(s)
- Swarnava Nandy
- Laboratory of Renewable Energy Science and Engineering, Institute of Mechanical Engineering, EPFL Station 9 1015 Lausanne Switzerland +41 21 69 33878
| | - Sangram Ashok Savant
- Laboratory of Renewable Energy Science and Engineering, Institute of Mechanical Engineering, EPFL Station 9 1015 Lausanne Switzerland +41 21 69 33878
| | - Sophia Haussener
- Laboratory of Renewable Energy Science and Engineering, Institute of Mechanical Engineering, EPFL Station 9 1015 Lausanne Switzerland +41 21 69 33878
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31
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Affiliation(s)
- Roland Marschall
- Department of Chemistry University of Bayreuth 95447 Bayreuth Germany
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32
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Gordon MN, Chatterjee K, Lambright AL, Bueno SLA, Skrabalak SE. Organohalide Precursors for the Continuous Production of Photocatalytic Bismuth Oxyhalide Nanoplates. Inorg Chem 2021; 60:4218-4225. [PMID: 33356200 DOI: 10.1021/acs.inorgchem.0c03231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal heteroanionic materials, such as oxyhalides, are promising photocatalysts in which band positions can be engineered for visible-light absorption by changing the halide identity. Advancing the synthesis of these materials, bismuth oxyhalides of the form BiOX (X = Cl, Br) have been prepared using rapid and scalable ultrasonic spray synthesis (USS). Central to this advance was the identification of small organohalide molecules as halide sources. When these precursors are spatially and temporally confined in the aerosol phase with molten salt fluxes, powders composed of single-crystalline BiOX nanoplates can be produced continuously. A mechanism highlighting the in situ generation of halide ions is proposed. These materials can be used as photocatalysts and provide proof-of-concept toward USS as a route to more complex bismuth oxyhalide materials.
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Affiliation(s)
- Matthew N Gordon
- Department of Chemistry, Indiana University - Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Kaustav Chatterjee
- Department of Chemistry, Indiana University - Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Alison L Lambright
- Department of Chemistry, Indiana University - Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Sandra L A Bueno
- Department of Chemistry, Indiana University - Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University - Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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33
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Ojha N, Bajpai A, Kumar S. Enriched oxygen vacancies of Cu2O/SnS2/SnO2 heterostructure for enhanced photocatalytic reduction of CO2 by water and nitrogen fixation. J Colloid Interface Sci 2021; 585:764-777. [DOI: 10.1016/j.jcis.2020.10.056] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/09/2020] [Accepted: 10/18/2020] [Indexed: 12/17/2022]
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34
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Wang Z, Luo Y, Hisatomi T, Vequizo JJM, Suzuki S, Chen S, Nakabayashi M, Lin L, Pan Z, Kariya N, Yamakata A, Shibata N, Takata T, Teshima K, Domen K. Sequential cocatalyst decoration on BaTaO 2N towards highly-active Z-scheme water splitting. Nat Commun 2021; 12:1005. [PMID: 33579929 PMCID: PMC7881033 DOI: 10.1038/s41467-021-21284-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 01/19/2021] [Indexed: 11/09/2022] Open
Abstract
Oxynitride photocatalysts hold promise for renewable solar hydrogen production via water splitting owing to their intense visible light absorption. Cocatalyst loading is essential for activation of such oxynitride photocatalysts. However, cocatalyst nanoparticles form aggregates and exhibit weak interaction with photocatalysts, which prevents eliciting their intrinsic photocatalytic performance. Here, we demonstrate efficient utilization of photoexcited electrons in a single-crystalline particulate BaTaO2N photocatalyst prepared with the assistance of RbCl flux for H2 evolution reactions via sequential decoration of Pt cocatalyst by impregnation-reduction followed by site-selective photodeposition. The Pt-loaded BaTaO2N photocatalyst evolves H2 over 100 times more efficiently than before, with an apparent quantum yield of 6.8% at the wavelength of 420 nm, from a methanol aqueous solution, and a solar-to-hydrogen energy conversion efficiency of 0.24% in Z-scheme water splitting. Enabling uniform dispersion and intimate contact of cocatalyst nanoparticles on single-crystalline narrow-bandgap particulate photocatalysts is a key to efficient solar-to-chemical energy conversion.
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Affiliation(s)
- Zheng Wang
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan.,Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Ying Luo
- Department of Science and Technology, Graduate School of Medicine, Science and Technology, Shinshu University, Nagano, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Junie Jhon M Vequizo
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Sayaka Suzuki
- Department of Materials Chemistry, Faculty of Engineering, Shinshu University, Nagano, Japan
| | - Shanshan Chen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, The University of Tokyo, Tokyo, Japan
| | - Lihua Lin
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Zhenhua Pan
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Nobuko Kariya
- Science & Innovation Center, Mitsubishi Chemical Corporation, Yokohama-shi, Kanagawa, Japan
| | - Akira Yamakata
- Graduate School of Engineering, Toyota Technological Institute, Nagoya, Japan
| | - Naoya Shibata
- Institute of Engineering Innovation, The University of Tokyo, Tokyo, Japan
| | - Tsuyoshi Takata
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan
| | - Katsuya Teshima
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan. .,Department of Materials Chemistry, Faculty of Engineering, Shinshu University, Nagano, Japan.
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano-shi, Nagano, Japan. .,Office of University Professors, The University of Tokyo, Tokyo, Japan.
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35
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Zhao Z, Shen B, Hu Z, Zhang J, He C, Yao Y, Guo SQ, Dong F. Recycling of spent alkaline Zn-Mn batteries directly: Combination with TiO 2 to construct a novel Z-scheme photocatalytic system. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123236. [PMID: 32947685 DOI: 10.1016/j.jhazmat.2020.123236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
Recycling of spent alkaline Zn-Mn batteries (S-AZMB) has always been a focus of attention in environmental and energy fields. However, the current research mostly concentrated in the recovery of purified materials, and ignores the direct reuse of S-AZMB. Herein, we propose a new concept for the first time that unpurified S-AZMB can be used as raw materials for preparation of Z-scheme photocatalytic system in combination with TiO2. A series of characterizations and experiments confirm that the combination with S-AZMB not only extends the response of TiO2 to visible light, but also significantly enhances the separation ability of photogenerated electron-hole pairs. In the toluene removal experiment, the degradation kinetic rate of Z-scheme TiO2@S-AZMB photocatalyst reaches 21.0 and 10.5 times than that of TiO2 and S-AZMB, respectively. More notably, this S-AZMB based Z-scheme photocatalyst can maintain structural and photocatalytic performance stability in cyclic catalytic reactions. We believe that this work not only expands the research concept of recycling S-AZMB, but also provides a new idea for designing highly efficient Z-scheme photocatalysts.
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Affiliation(s)
- Zhong Zhao
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Boxiong Shen
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China.
| | - Zhenzhong Hu
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Jianwei Zhang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Chuan He
- Xi'an Thermal Power Research Institute Co., Ltd., Suzhou Branch, Suzhou, 215153, PR China
| | - Yan Yao
- Xi'an Thermal Power Research Institute Co., Ltd., Suzhou Branch, Suzhou, 215153, PR China
| | - Sheng-Qi Guo
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China.
| | - Fan Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, PR China
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36
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An Y, Xing Z, Zhu K, Lin H, Su H, Yang S. Anomalous Photoinduced Reconstructing and Dark Self-Healing Processes on Bi 2O 2S Nanoplates. J Phys Chem Lett 2020; 11:7832-7838. [PMID: 32864970 DOI: 10.1021/acs.jpclett.0c01928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report an anomalous photoinduced reconstructing and dark self-healing process on Bi2O2S nanoplates by monitoring the time profile of open-circuit potential (OCP). When the light was switched on and off on the nanoplates, we observed pronounced and repeatable decrement-recovery cycles of the OCP signal, which are inexplicable by a rapid electron-hole separation-recombination process only as in a conventional semiconductor. It is proposed that upon irradiation, accumulation of photogenerated holes at the electrode surface caused oxidation of the S layers of Bi2O2S nanoplates into certain intermediates, which, when the light was turned off, were then reduced back to the original state by the electron back flow. Raman scattering spectroscopy provided te S-S vibrational signature of the intermediate, evidencing the hole oxidative dimerization of the S2- species and the inverse reductive S-S dissociation process. The photophysics and photochemistry of semiconductor nanoplates reported here may inspire the development of energy devices, switches, and memristors.
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Affiliation(s)
- Yiming An
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zheng Xing
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Kaicheng Zhu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - He Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Haibin Su
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Guangdong Key Lab of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology Shenzhen Graduate School, Peking University, Shenzhen 518055, China
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37
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Lin L, Hisatomi T, Chen S, Takata T, Domen K. Visible-Light-Driven Photocatalytic Water Splitting: Recent Progress and Challenges. TRENDS IN CHEMISTRY 2020. [DOI: 10.1016/j.trechm.2020.06.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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38
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Yoda M, Takashima T, Akiyoshi K, Torimoto T, Irie H. Red light-inducible overall water-splitting photocatalyst, gold-inserted zinc rhodium oxide and bismuth vanadium oxide heterojunction, connected using gold prepared by sputtering in ionic liquid. J Chem Phys 2020; 153:014701. [DOI: 10.1063/5.0010100] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Masaomi Yoda
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine, Engineering and Agricultural Sciences, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Toshihiro Takashima
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine, Engineering and Agricultural Sciences, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
- Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Kazutaka Akiyoshi
- Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Tsukasa Torimoto
- Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hiroshi Irie
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine, Engineering and Agricultural Sciences, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
- Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
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39
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Li G, Li F, Liu J, Fan C. Fe-based MOFs for photocatalytic N2 reduction: Key role of transition metal iron in nitrogen activation. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121245] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Ng B, Putri LK, Kong XY, Teh YW, Pasbakhsh P, Chai S. Z-Scheme Photocatalytic Systems for Solar Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903171. [PMID: 32274312 PMCID: PMC7141076 DOI: 10.1002/advs.201903171] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/22/2019] [Indexed: 05/27/2023]
Abstract
As the world decides on the next giant step for the renewable energy revolution, scientists have begun to reinforce their headlong dives into the exploitation of solar energy. Hitherto, numerous attempts are made to imitate the natural photosynthesis of plants by converting solar energy into chemical fuels which resembles the "Z-scheme" process. A recreation of this system is witnessed in artificial Z-scheme photocatalytic water splitting to generate hydrogen (H2). This work outlines the recent significant implication of the Z-scheme system in photocatalytic water splitting, particularly in the role of electron mediator and the key factors that improve the photocatalytic performance. The Review begins with the fundamental rationales in Z-scheme water splitting, followed by a survey on the development roadmap of three different generations of Z-scheme system: 1) PS-A/D-PS (first generation), 2) PS-C-PS (second generation), and 3) PS-PS (third generation). Focus is also placed on the scaling up of the "leaf-to-tree" challenge of Z-scheme water splitting system, which is also known as Z-scheme photocatalyst sheet. A detailed investigation of the Z-scheme system for achieving H2 evolution from past to present accompanied with in-depth discussion on the key challenges in the area of Z-scheme photocatalytic water splitting are provided.
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Affiliation(s)
- Boon‐Junn Ng
- Multidisciplinary Platform of Advanced EngineeringChemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
| | - Lutfi Kurnianditia Putri
- Multidisciplinary Platform of Advanced EngineeringChemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
| | - Xin Ying Kong
- Multidisciplinary Platform of Advanced EngineeringChemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
| | - Yee Wen Teh
- Multidisciplinary Platform of Advanced EngineeringChemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
| | - Pooria Pasbakhsh
- Mechanical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
| | - Siang‐Piao Chai
- Multidisciplinary Platform of Advanced EngineeringChemical Engineering DisciplineSchool of EngineeringMonash UniversityJalan Lagoon Selatan47500Bandar SunwaySelangorMalaysia
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41
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Two decades of Ezio Pelizzetti’s achievements and contributions to photocatalysis – A personal recollection. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.10.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Chen S, Huang D, Xu P, Gong X, Xue W, Lei L, Deng R, Li J, Li Z. Facet-Engineered Surface and Interface Design of Monoclinic Scheelite Bismuth Vanadate for Enhanced Photocatalytic Performance. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03411] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Lei Lei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Rui Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Jing Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Zhihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
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43
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Zhou D, Wang YY, Wang FR, Liu JK, Zhang XM. Design and Application of Ag3PO4@Ag4V2O7 Z-Scheme Photocatalysts with a Micro-Nano Tube-Cluster Structure for the Co-Degradation of Nitrate and Ammonia in Wastewater. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03623] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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44
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Wang Q, Domen K. Particulate Photocatalysts for Light-Driven Water Splitting: Mechanisms, Challenges, and Design Strategies. Chem Rev 2019; 120:919-985. [PMID: 31393702 DOI: 10.1021/acs.chemrev.9b00201] [Citation(s) in RCA: 741] [Impact Index Per Article: 148.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Solar-driven water splitting provides a leading approach to store the abundant yet intermittent solar energy and produce hydrogen as a clean and sustainable energy carrier. A straightforward route to light-driven water splitting is to apply self-supported particulate photocatalysts, which is expected to allow solar hydrogen to be competitive with fossil-fuel-derived hydrogen on a levelized cost basis. More importantly, the powder-based systems can lend themselves to making functional panels on a large scale while retaining the intrinsic activity of the photocatalyst. However, all attempts to generate hydrogen via powder-based solar water-splitting systems to date have unfortunately fallen short of the efficiency values required for practical applications. Photocatalysis on photocatalyst particles involves three sequential steps: (i) absorption of photons with higher energies than the bandgap of the photocatalysts, leading to the excitation of electron-hole pairs in the particles, (ii) charge separation and migration of these photoexcited carriers, and (iii) surface chemical reactions based on these carriers. In this review, we focus on the challenges of each step and summarize material design strategies to overcome the obstacles and limitations. This review illustrates that it is possible to employ the fundamental principles underlying photosynthesis and the tools of chemical and materials science to design and prepare photocatalysts for overall water splitting.
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Affiliation(s)
- Qian Wang
- Department of Chemical System Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Kazunari Domen
- Department of Chemical System Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.,Center for Energy & Environmental Science , Shinshu University , 4-17-1 Wakasato , Nagano-shi , Nagano 380-8553 , Japan
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45
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Xia X, Song M, Wang H, Zhang X, Sui N, Zhang Q, Colvin VL, Yu WW. Latest progress in constructing solid-state Z scheme photocatalysts for water splitting. NANOSCALE 2019; 11:11071-11082. [PMID: 31149691 DOI: 10.1039/c9nr03218e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Artificial Z scheme photocatalysis has been considered as a promising strategy for producing the clean energy source of hydrogen gas. The core of the Z scheme is a two-step excitation process in a tandem structured photosystem aiming to satisfy both the criteria of wide range solar spectrum absorption and strong thermodynamic driving force for photolysis reactions. Therefore, efficient connection and matching between the two photosystems is the key to improve the photocatalytic activity. Recently, new progress has been achieved concerning the principles and applications of state-of-the-art solid-state Z schematic systems to enhance the photocatalytic efficiency and repress competitive reactions. This review summarizes the latest approaches to all-solid-state Z schemes for photocatalytic water splitting, including new tandem structures, new morphologies, and new connection modes to improve light absorption as well as carrier transportation. The challenges for developing novel high performance Z scheme photocatalysts are also discussed.
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Affiliation(s)
- Xinyuan Xia
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Mengjiao Song
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Hua Wang
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Xiangtong Zhang
- Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
| | - Ning Sui
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Qingbo Zhang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Vicki L Colvin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - William W Yu
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. and Department of Chemistry and Physics, Louisiana State University, Shreveport, LA 71115, USA
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46
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Cui J, Li C, Zhang F. Development of Mixed-Anion Photocatalysts with Wide Visible-Light Absorption Bands for Solar Water Splitting. CHEMSUSCHEM 2019; 12:1872-1888. [PMID: 30211984 DOI: 10.1002/cssc.201801829] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/10/2018] [Indexed: 05/26/2023]
Abstract
Rapid fossil-fuel consumption, severe environmental concerns, and growing energy demands call for the exploitation of environmentally friendly, recyclable, new energy sources. Fuel-producing artificial systems that directly convert solar energy into fuels by mimicking natural photosynthesis are expected to achieve this goal. Among them, the conversion of solar energy into hydrogen energy through the photocatalytic water-splitting process over a particulate semiconductor is one of the most promising routes due to advantages such as simplicity, cheapness, and ease of large-scale production. Abundant metal oxide photocatalysts have been developed in the last century, but most are only active under UV-light irradiation. To harvest a much wider range of the solar spectrum, the development of photocatalysts with wide visible-light absorption bands has become increasingly popular this century. Herein, a brief overview of materials developed for promising solar water splitting, with an emphasis on a mixed-anion structure and wide visible-light absorption bands, is presented, with some basic information on the principles, approaches, and research progress on the photocatalytic water-splitting reaction with particulate semiconductors. Typical progress on research into one- and two-step (Z-scheme) overall water-splitting systems by utilizing mixed-anion photocatalysts is highlighted, together with research strategies and modification methods.
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Affiliation(s)
- Junyan Cui
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023, PR China
| | - Can Li
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023, PR China
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023, PR China
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47
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Song Z, Hisatomi T, Chen S, Wang Q, Ma G, Li S, Zhu X, Sun S, Domen K. Visible-Light-Driven Photocatalytic Z-Scheme Overall Water Splitting in La 5 Ti 2 AgS 5 O 7 -based Powder-Suspension System. CHEMSUSCHEM 2019; 12:1906-1910. [PMID: 30644173 DOI: 10.1002/cssc.201802306] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 01/08/2019] [Indexed: 06/09/2023]
Abstract
La5 Ti2 Cux Ag1-x S5 O7 (x=0-1) is a type of long-wavelength-responsive oxysulfide photocatalysts for hydrogen evolution and has been demonstrated to enable the Z-scheme water-splitting coupling with oxygen evolution photocatalysts (OEPs) in the particulate sheet. Among La5 Ti2 Cux Ag1-x S5 O7 materials, La5 Ti2 AgS5 O7 was found to have the highest performance on Z-scheme overall water splitting in conjunction with PtOx -WO3 as an OEP and a triiodide/iodide (I3 - /I- ) redox couple as a shuttle electron mediator in a powder-suspension system. Loading Pt/NiS on La5 Ti2 AgS5 O7 benefitted the Z-scheme to achieve an apparent quantum yield of 0.12 % at 420 nm. The results for this powder-suspension system differ from earlier studies on photocatalyst sheet configurations, in which p-type doping and the formation of a solid solution could effectively enhance the water-splitting activity. This work not only demonstrates a La5 Ti2 AgS5 O7 -based Z-scheme water-splitting photocatalyst but also improves the understanding of the difference between particulate sheets and a powder-suspension system available in an optimal strategy for water splitting.
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Affiliation(s)
- Zhimin Song
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Takashi Hisatomi
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for Energy & Environmental Science, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Shanshan Chen
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for Energy & Environmental Science, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Qian Wang
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Current address: Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Guijun Ma
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Current address: School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P.R. China
| | - Shikuo Li
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P.R. China
| | - Xiaodi Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, P.R. China
| | - Song Sun
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui, 230601, P.R. China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, P.R. China
| | - Kazunari Domen
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for Energy & Environmental Science, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
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Yue P, Zhang G, Cao X, Wang B, Zhang Y, Wei Y. In situ synthesis of Z-scheme BiPO4/BiOCl0.9I0.1 heterostructure with multiple vacancies and valence for efficient photocatalytic degradation of organic pollutant. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Hisatomi T, Domen K. Reaction systems for solar hydrogen production via water splitting with particulate semiconductor photocatalysts. Nat Catal 2019. [DOI: 10.1038/s41929-019-0242-6] [Citation(s) in RCA: 620] [Impact Index Per Article: 124.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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Nandy S, Hisatomi T, Sun S, Katayama M, Minegishi T, Domen K. Effects of Se Incorporation in La 5Ti 2CuS 5O 7 by Annealing on Physical Properties and Photocatalytic H 2 Evolution Activity. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5595-5601. [PMID: 29771120 DOI: 10.1021/acsami.8b02909] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oxysulfoselenide semiconductor photocatalysts absorb light at longer wavelengths than the corresponding oxysulfides. However, the synthesis of oxysulfoselenides is challenging due to excessive particle growth and the limited availability of metal selenide precursors. In this study, a La5Ti2CuS5O7 (LTCSO) oxysulfide was annealed with Se powder in sealed, evacuated quartz tubes to obtain LTCSO:Se photocatalysts, and the properties of these materials were investigated. Se was found to be incorporated into the LTCSO upon heating at 973 K or higher, and the Se/(S + Se) ratio was increased to a maximum of 0.3 upon repeating the heat treatment twice. The addition of Se extended the absorption edge of the LTCSO and thus increased its photocatalytic H2 evolution activity at longer wavelength. Even so, the apparent quantum yield at shorter wavelengths was reduced, which is similar to the results obtained for La5Ti2Cu(S1- xSe x)5O7 (LTCS1- xSe xO) solid solutions. Overall water splitting was achieved by constructing photocatalyst sheets using LTCSO:Se and LTCS1- xSe xO as hydrogen evolution photocatalysts and BiVO4 as an oxygen evolution photocatalyst. Heat treatment with Se is evidently an effective method for the transformation of oxysulfide photocatalysts to oxysulfoselenides that promote photocatalytic H2 evolution and have longer absorption edge wavelengths.
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Affiliation(s)
- Swarnava Nandy
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Takashi Hisatomi
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Song Sun
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
- National Synchrotron Radiation Laboratory, Collaborative Innovation Centre of Chemistry for Energy Materials , University of Science & Technology of China , Hefei , Anhui 230029 , China
| | - Masao Katayama
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Tsutomu Minegishi
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Kazunari Domen
- Department of Chemical System Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
- Center for Energy & Environmental Science , Shinshu University , 4-17-1 Wakasato , Nagano-shi , Nagano 380-8553 , Japan
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