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Wei Y, Wan J, Wang J, Zhang X, Yu R, Yang N, Wang D. Hollow Multishelled Structured SrTiO 3 with La/Rh Co-Doping for Enhanced Photocatalytic Water Splitting under Visible Light. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005345. [PMID: 33464723 DOI: 10.1002/smll.202005345] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/02/2020] [Indexed: 06/12/2023]
Abstract
La- and Rh-co-doped SrTiO3 (STO:La/Rh) hollow multishelled structures (HoMSs) are fabricated by adding La3+ and Rh3+ ions during the hydrothermal process of converting TiO2 HoMSs to STO HoMSs. STO:La/Rh HoMSs have successfully expanded the light absorption edge to 520 nm. Accompanied with the benefits of the unique hierarchical structure and relatively thin shells, STO:La/Rh HoMSs exhibit elevated light-harvesting capacity and charge separation efficiency. Compared with STO:La/Rh nanoparticles (NPs), STO:La/Rh HoMSs demonstrate enhanced photocurrent response, photocatalytic hydrogen evolution activity, and the quantum efficiency. Moreover, overall water splitting is realized by a Z-scheme system combining STO:La/Rh HoMSs with BiVO4 (BVO) nanosheets with 1 wt% Pt as the co-catalyst. Steady evolution of hydrogen and oxygen is performed under both visible light and simulated sunlight irradiation. The solar-to-hydrogen efficiency of double-shelled STO:La/Rh HoMS-BVO photocatalysts reaches 0.08%, which is twofold higher than STO:La/Rh NP-BVO photocatalysts.
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Affiliation(s)
- Yanze Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30, Xueyuan Road, Haidian District, Beijing, 100083, China
| | - Jiawei Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Jiangyan Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Xing Zhang
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30, Xueyuan Road, Haidian District, Beijing, 100083, China
| | - Ranbo Yu
- Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30, Xueyuan Road, Haidian District, Beijing, 100083, China
| | - Nailiang Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
| | - Dan Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Haidian District, Beijing, 100190, China
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Shao B, Zhao W, Miao S, Huang J, Wang L, Li G, Shen W. Facet-dependent anchoring of gold nanoparticles on TiO2 for CO oxidation. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63388-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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