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She P, Qin JS, Sheng J, Qi Y, Rui H, Zhang W, Ge X, Lu G, Song X, Rao H. Dual-Functional Photocatalysis for Cooperative Hydrogen Evolution and Benzylamine Oxidation Coupling over Sandwiched-Like Pd@TiO 2 @ZnIn 2 S 4 Nanobox. Small 2022; 18:e2105114. [PMID: 34984800 DOI: 10.1002/smll.202105114] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/24/2021] [Indexed: 06/14/2023]
Abstract
Photocatalytic hydrogen evolution (PHE) over semiconductor photocatalysts is usually constrained by the limited light-harvesting and separation of photogenerated electron-hole pairs. Most of the reported systems focusing on PHE are facilitated by consuming the photoinduced holes with organic sacrificial electron donors (SEDs). The introduction of the SEDs not only causes the environmental problem, but also increases the cost of the reaction. Herein, a dual-functional photocatalyst is developed with the morphology of sandwiched-like hollowed Pd@TiO2 @ZnIn2 S4 nanobox, which is synthesized by choosing microporous zeolites with sub-nanometer-sized Pd nanoparticles (Pd NPs) embedded as the sacrificial templates. The ternary Pd@TiO2 @ZnIn2 S4 photocatalyst exhibits a superior PHE rate (5.35 mmol g-1 h-1 ) and benzylamine oxidation conversion rate (>99%) simultaneously without adding any other SEDs. The PHE performance is superior to the reported composites of TiO2 and ZnIn2 S4 , which is attributed to the elevated light capture ability induced by the hollow structure, and the enhanced charge separation efficiency facilitated by the ultrasmall sized Pd NPs. The unique design presented here holds great potential for other highly efficient cooperative dual-functional photocatalytic reactions.
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Affiliation(s)
- Ping She
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jun-Sheng Qin
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Jiyao Sheng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Yuanyuan Qi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Hongbang Rui
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Wei Zhang
- Electron Microscopy Center, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xin Ge
- Electron Microscopy Center, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Geyu Lu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xiaowei Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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