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Gao X, Zhao H, Wang D, Xu Y, Zhang B, Zou G. Selectively Lighting Up Singlet Oxygen via Aggregation-Induced Electrochemiluminescence Energy Transfer. Anal Chem 2022; 94:3718-3726. [PMID: 35166109 DOI: 10.1021/acs.analchem.1c05597] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Singlet oxygen (1O2) is an important reactive oxygen species (ROS) that is intensively involved in natural photochemical and photobiological processes. Herein, selectively lighting up 1O2 is achieved in the aggregation-induced emission (AIE) of electrochemiluminescence (ECL) from the Zn2+-mediated AIE assembly of Au nanoclusters (Zn2+-AIE-AuNCs). Zn2+-AIE-AuNCs can exhibit efficient AIE ECL and photoluminescence (PL) along with 1O2 generation in energy and charge transfer routes, respectively. The AIE ECL of the Zn2+-AIE-AuNCs/tripropylamine (TEA) system in carbonate buffer is located around 703 nm with the dimeric aggregate of 1O2 as an emitter because electrochemically oxidizing coexisted Zn2+-AIE-AuNCs and TEA in carbonate buffer would promote the oxygen vacancy (Ov) of Zn2+-AIE-AuNCs, which could selectively enable the generation of emissive singlet oxygen in the energy transfer route by effectively transferring the energy from excited singlet Zn2+-AIE-AuNCs to the triplet ground state of dissolved oxygen (3O2). No emissive 1O2 is detected via electrochemically oxidizing the Zn2+-AIE-AuNCs in the case without either carbonate buffer or TEA, and the Zn2+-AIE-AuNCs/TEA system can only exhibit AIE ECL around 485 nm with Zn2+-AIE-AuNCs as the emitter in carbonate-free buffers. Photoexciting Zn2+-AIE-AuNCs merely brings out band-gap-engineered AIE PL around ∼485 nm with Zn2+-AIE-AuNCs as the emitter, which manifests that the 1O2 generated in the charge transfer route via photoexciting Zn2+-AIE-AuNCs is un-emissive. This work not only proposes an effective strategy for AIE with 1O2 as an emitter but also opens a promising way to selectively light up 1O2.
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Affiliation(s)
- Xuwen Gao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Huimin Zhao
- Shandong Provincial Engineering and Technical Center of Light Manipulations, Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250100, China
| | - Dongyang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuqi Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Bin Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Guizheng Zou
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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2
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Walton RI. Perovskite Oxides Prepared by Hydrothermal and Solvothermal Synthesis: A Review of Crystallisation, Chemistry, and Compositions. Chemistry 2020; 26:9041-9069. [PMID: 32267980 DOI: 10.1002/chem.202000707] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Indexed: 11/07/2022]
Abstract
Perovskite oxides with general composition ABO3 are a large group of inorganic materials that can contain a variety of cations from all parts of the Periodic Table and that have diverse properties of application in fields ranging from electronics, energy storage to photocatalysis. Solvothermal synthesis routes to these materials have become increasingly investigated in the past decade as a means of direct crystallisation of the solids from solution. These methods have significant advantages leading to adjustment of crystal form from the nanoscale to the micron-scale, the isolation of compositions not possible using conventional solid-state synthesis and in addition may lead to scalable processes for producing materials at moderate temperatures. These aspects are reviewed, with examples taken from the past decade's literature on the solvothermal synthesis of perovskites with a systematic survey of B-site cations, from transition metals in Groups 4-8 and main group elements in Groups 13, 14 and 15, to solid solutions and heterostructures. As well as hydrothermal reactions, the use of various solvents and solution additives are discussed and some trends identified, along with prospects for developing control and predictability in the crystallisation of complex oxide materials.
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Affiliation(s)
- Richard I Walton
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
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3
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McDonald C, Ni C, Maguire P, Connor P, Irvine JTS, Mariotti D, Svrcek V. Nanostructured Perovskite Solar Cells. NANOMATERIALS 2019; 9:nano9101481. [PMID: 31635204 PMCID: PMC6835749 DOI: 10.3390/nano9101481] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/11/2019] [Accepted: 10/12/2019] [Indexed: 12/27/2022]
Abstract
Over the past decade, lead halide perovskites have emerged as one of the leading photovoltaic materials due to their long carrier lifetimes, high absorption coefficients, high tolerance to defects, and facile processing methods. With a bandgap of ~1.6 eV, lead halide perovskite solar cells have achieved power conversion efficiencies in excess of 25%. Despite this, poor material stability along with lead contamination remains a significant barrier to commercialization. Recently, low-dimensional perovskites, where at least one of the structural dimensions is measured on the nanoscale, have demonstrated significantly higher stabilities, and although their power conversion efficiencies are slightly lower, these materials also open up the possibility of quantum-confinement effects such as carrier multiplication. Furthermore, both bulk perovskites and low-dimensional perovskites have been demonstrated to form hybrids with silicon nanocrystals, where numerous device architectures can be exploited to improve efficiency. In this review, we provide an overview of perovskite solar cells, and report the current progress in nanoscale perovskites, such as low-dimensional perovskites, perovskite quantum dots, and perovskite-nanocrystal hybrid solar cells.
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Affiliation(s)
- Calum McDonald
- Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan.
| | - Chengsheng Ni
- College of Resources and Environment, Southwest University, Beibei, Chongqing 400715, China.
| | - Paul Maguire
- School of Engineering, Ulster University, Newtownabbey BT14 8RT, UK.
| | - Paul Connor
- School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9AJ, UK.
| | - John T S Irvine
- School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9AJ, UK.
| | - Davide Mariotti
- School of Engineering, Ulster University, Newtownabbey BT14 8RT, UK.
| | - Vladimir Svrcek
- Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan.
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Paramanik L, Reddy KH, Sultana S, Parida K. Architecture of Biperovskite-Based LaCrO3/PbTiO3 p–n Heterojunction with a Strong Interface for Enhanced Charge Anti-recombination Process and Visible Light-Induced Photocatalytic Reactions. Inorg Chem 2018; 57:15133-15148. [DOI: 10.1021/acs.inorgchem.8b02364] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lekha Paramanik
- Centre for Nanoscience and Nanotechnology, SOA Deemed to be University, Bhubaneswar—751030 Odisha, India
| | - K. Hemalata Reddy
- Centre for Nanoscience and Nanotechnology, SOA Deemed to be University, Bhubaneswar—751030 Odisha, India
| | - Sabiha Sultana
- Centre for Nanoscience and Nanotechnology, SOA Deemed to be University, Bhubaneswar—751030 Odisha, India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, SOA Deemed to be University, Bhubaneswar—751030 Odisha, India
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Shi J, Zhang Y, Zhou Z, Zhao Y, Liu J, Liu H, Liao X, Hu Y, Zhao D, Shen S. LaTiO 2N-LaCrO 3: continuous solid solutions towards enhanced photocatalytic H 2 evolution under visible-light irradiation. Dalton Trans 2017; 46:10685-10693. [PMID: 28518191 DOI: 10.1039/c7dt01267e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(LaTiO2N)1-x(LaCrO3)x continuous solid solutions with an orthorhombic-phase ABX3 perovskite structure and with varied LaCrO3 contents (0 ≤ x ≤ 1) were synthesized by a polymerized complex method followed by a post-treatment process of nitridation for the first time. Visible-light-driven photocatalytic H2-evolution activities of the solid solutions gradually increased with the increase of x from 0.0 to 0.3, and then sharply decreased with the further increase of x from 0.3 to 1.0. With the increase of x, on the one hand, the narrowed bandgaps of solid solutions would enhance the generation of charge carriers and the increased lattice distortion of solid solutions could promote the separation and migration of charge carriers, thus mainly contributing to the improvement of photocatalytic activities; on the other hand, the lowered CBMs of solid solutions would reduce the driving force for reducing H2O to H2 and the decreased surface areas of solid solutions would weaken the adsorption of reactants and reduce the reactive sites, thereby resulting in the deterioration of photocatalytic activities.
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Affiliation(s)
- Jinwen Shi
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an 710049, China.
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Wang Y, Liu S, Zhao C, Liu F, Han F, Liu C. Comparison study of BiVO4 heterojunctions photocatalyst with different carbon materials. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3010-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zong S, Cheng C, Shi J, Huang Z, Hu Y, Yang H, Guo L. Molten Ag 2 SO 4 -based Ion-Exchange Preparation of Ag 0.5 La 0.5 TiO 3 for Photocatalytic O 2 Evolution. Chem Asian J 2017; 12:882-889. [PMID: 28220991 DOI: 10.1002/asia.201700101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/20/2017] [Indexed: 01/30/2023]
Abstract
Ag0.5 La0.5 TiO3 with an ABO3 perovskite structure was synthesized by a newly developed ion-exchange method. Molten Ag2 SO4 instead of traditional molten AgNO3 was used as Ag+ source in view of its high decomposition temperature (1052 °C), thereby guaranteeing the complete substitution of Ag+ for Na+ in Na0.5 La0.5 TiO3 with a stable ABO3 perovskite structure at a high ion-exchange temperature (700 °C). Under full-arc irradiation, the O2 -evolution activity of Ag0.5 La0.5 TiO3 was about 1.6 times that of Na0.5 La0.5 TiO3 due to the optimized electronic band structures and local lattice structures. On the one hand, the substitution of Ag+ for Na+ elevated the VBM and thus narrowed the band gap from 3.19 to 2.83 eV, thereby extending the light-response range and, accordingly, enhancing the photoexcitation to generate more charge carriers. On the other hand, the substitution of Ag+ for Na+ induced a lattice distortion of the ABO3 perovskite structure, thereby promoting the separation and migration of charge carriers. Moreover, under visible-light irradiation, Ag0.5 La0.5 TiO3 displayed notable O2 evolution whereas Na0.5 La0.5 TiO3 showed little O2 evolution, thus demonstrating that the substitution of Ag+ for Na+ enabled the use of visible light to evolve O2 photocatalytically. This work presents an effective route to explore novel Ag-based photocatalysts.
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Affiliation(s)
- Shichao Zong
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Cheng Cheng
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Jinwen Shi
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Zhenxiong Huang
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Yuchao Hu
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Honghui Yang
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China.,Department of Environmental Science and Engineering, Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
| | - Liejin Guo
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, 710049, China
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Zhang Y, Shi J, Hu Y, Huang Z, Guo L. Co3(OH)2(HPO4)2 as a novel photocatalyst for O2 evolution under visible-light irradiation. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01861k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co3(OH)2(HPO4)2 was proved to be a novel visible-light-driven photocatalyst for O2 evolution due to the unique characteristics of Co2+ octahedra.
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Affiliation(s)
- Yazhou Zhang
- International Research Center for Renewable Energy (IRCRE)
- State Key Laboratory of Multiphase Flow in Power Engineering (MFPE)
- Xi'an Jiaotong University (XJTU)
- Xi'an 710049
- China
| | - Jinwen Shi
- International Research Center for Renewable Energy (IRCRE)
- State Key Laboratory of Multiphase Flow in Power Engineering (MFPE)
- Xi'an Jiaotong University (XJTU)
- Xi'an 710049
- China
| | - Yuchao Hu
- International Research Center for Renewable Energy (IRCRE)
- State Key Laboratory of Multiphase Flow in Power Engineering (MFPE)
- Xi'an Jiaotong University (XJTU)
- Xi'an 710049
- China
| | - Zhenxiong Huang
- International Research Center for Renewable Energy (IRCRE)
- State Key Laboratory of Multiphase Flow in Power Engineering (MFPE)
- Xi'an Jiaotong University (XJTU)
- Xi'an 710049
- China
| | - Liejin Guo
- International Research Center for Renewable Energy (IRCRE)
- State Key Laboratory of Multiphase Flow in Power Engineering (MFPE)
- Xi'an Jiaotong University (XJTU)
- Xi'an 710049
- China
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9
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Zhang G, Liu G, Wang L, Irvine JTS. Inorganic perovskite photocatalysts for solar energy utilization. Chem Soc Rev 2016; 45:5951-5984. [DOI: 10.1039/c5cs00769k] [Citation(s) in RCA: 348] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review specifically summarizes the recent development of perovskite photocatalysts and their applications in water splitting and environmental remediation.
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Affiliation(s)
- Guan Zhang
- School of Civil and Environmental Engineering
- Harbin Institute of Technology (Shenzhen)
- Shenzhen 518055
- China
- School of Chemistry
| | - Gang Liu
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Lianzhou Wang
- School of Chemical Engineering
- The University of Queensland
- Brisbane
- Australia
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10
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Shi J, Zong S, Hu Y, Guan X, Luo J, Shang Y, Li G, Liu D, Wang X, Guo P. Continuous solid solutions of Na0.5La0.5TiO3–LaCrO3 for photocatalytic H2 evolution under visible-light irradiation. RSC Adv 2016. [DOI: 10.1039/c6ra07891e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
(Na0.5La0.5TiO3)1−x(LaCrO3)x solid solutions showed enhanced visible-light-driven photocatalytic activities for H2 evolution due to the narrowed bandgaps and increased lattice distortion.
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11
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YU Y, CHEN G, ZHOU Y, HAN Z. Recent advances in rare-earth elements modification of inorganic semiconductor-based photocatalysts for efficient solar energy conversion: A review. J RARE EARTH 2015. [DOI: 10.1016/s1002-0721(14)60440-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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A review on visible light active perovskite-based photocatalysts. Molecules 2014; 19:19995-20022. [PMID: 25532834 PMCID: PMC6271878 DOI: 10.3390/molecules191219995] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/13/2014] [Accepted: 11/16/2014] [Indexed: 12/12/2022] Open
Abstract
Perovskite-based photocatalysts are of significant interest in the field of photocatalysis. To date, several perovskite material systems have been developed and their applications in visible light photocatalysis studied. This article provides a review of the visible light (λ > 400 nm) active perovskite-based photocatalyst systems. The materials systems are classified by the B site cations and their crystal structure, optical properties, electronic structure, and photocatalytic performance are reviewed in detail. Titanates, tantalates, niobates, vanadates, and ferrites form important photocatalysts which show promise in visible light-driven photoreactions. Along with simple perovskite (ABO3) structures, development of double/complex perovskites that are active under visible light is also reviewed. Various strategies employed for enhancing the photocatalytic performance have been discussed, emphasizing the specific advantages and challenges offered by perovskite-based photocatalysts. This review provides a broad overview of the perovskite photocatalysts, summarizing the current state of the work and offering useful insights for their future development.
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Guo L, Jing D, Liu M, Chen Y, Shen S, Shi J, Zhang K. Functionalized nanostructures for enhanced photocatalytic performance under solar light. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:994-1004. [PMID: 25161835 PMCID: PMC4142989 DOI: 10.3762/bjnano.5.113] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 06/02/2014] [Indexed: 05/23/2023]
Abstract
Photocatalytic hydrogen production from water has been considered to be one of the most promising solar-to-hydrogen conversion technologies. In the last decade, various functionalized nanostructures were designed to address the primary requirements for an efficient photocatalytic generation of hydrogen by using solar energy: visible-light activity, chemical stability, appropriate band-edge characteristics, and potential for low-cost fabrication. Our aim is to present a short review of our recent attempts that center on the above requirements. We begin with a brief introduction of photocatalysts coupling two or more semiconductors, followed by a further discussion of the heterostructures with improved matching of both band structures and crystal lattices. We then elaborate on the heterostructure design of the targeted materials from macroscopic regulation of compositions and phases, to the more precise control at the nanoscale, i.e., materials with the same compositions but different phases with certain band alignment. We conclude this review with perspectives on nanostructure design that might direct future research of this technology.
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Affiliation(s)
- Liejin Guo
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Dengwei Jing
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Maochang Liu
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Yubin Chen
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Shaohua Shen
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Jinwen Shi
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
| | - Kai Zhang
- International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049, China
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Harunsani MH, Woodward DI, Peel MD, Ashbrook SE, Walton RI. Investigation of the hydrothermal crystallisation of the perovskite solid solution NaCe1−La Ti2O6 and its defect chemistry. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.09.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Hagiwara H, Nagatomo M, Seto C, Ida S, Ishihara T. Dye-modification effects on water splitting activity of GaN:ZnO photocatalyst. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Baumann SO, Liu C, Elser MJ, Sternig A, Siedl N, Berger T, Diwald O. On the Entangled Growth of NaTaO3Cubes and Na2Ti3O7Wires in Sodium Hydroxide Solution. Chemistry 2013; 19:10235-43. [DOI: 10.1002/chem.201204281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 04/03/2013] [Indexed: 11/07/2022]
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Shi J, Ma L, Wu P, Zhou Z, Jiang J, Wan X, Jing D, Guo L. Tin(II) Antimonates with Adjustable Compositions: Effects of Band-Gaps and Nanostructures on Visible-Light-Driven Photocatalytic H2Evolution. ChemCatChem 2012. [DOI: 10.1002/cctc.201200063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Shi J, Ye J, Ma L, Ouyang S, Jing D, Guo L. Site-Selected Doping of Upconversion Luminescent Er3+into SrTiO3for Visible-Light-Driven Photocatalytic H2or O2Evolution. Chemistry 2012; 18:7543-51. [PMID: 22532311 DOI: 10.1002/chem.201102807] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 02/03/2012] [Indexed: 02/02/2023]
Affiliation(s)
- Jinwen Shi
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU), 28 West Xianning Road, Xi'an, Shaanxi 710049, PR China
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Shi J, Shen S, Chen Y, Guo L, Mao SS. Visible light-driven photocatalysis of doped SrTiO3 tubular structure. OPTICS EXPRESS 2012; 20 Suppl 2:A351-A359. [PMID: 22418685 DOI: 10.1364/oe.20.00a351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
SrTiO3 tubular structures co-doped with Cr and Ta were synthesized through a combination of solvothermal-hydrothermal processes. X-ray photoelectron spectroscopy (XPS) measurements of the oxidation state of Cr ions reveal that the formation of Cr6+ ions, which would serve as the non-radiative recombination centers for photogenerated electrons and holes, was suppressed without the process of high temperature hydrogen reduction. Compared to similar co-doped materials synthesized by solid-state reaction, (Cr, Ta) co-doped SrTiO3 tubular structures have significantly higher photocatalytic activity for hydrogen evolution as measured in an aqueous methanol solution under visible light irradiation.
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Affiliation(s)
- Jinwen Shi
- International Research Center for Solar-Hydrogen Renewable and Clean Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, China
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Shi J, Ye J, Li Q, Zhou Z, Tong H, Xi G, Guo L. Single-Crystal Nanosheet-Based Hierarchical AgSbO3with Exposed {001} Facets: Topotactic Synthesis and Enhanced Photocatalytic Activity. Chemistry 2012; 18:3157-62. [DOI: 10.1002/chem.201102214] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Indexed: 11/08/2022]
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