Applied Catalysis2022，Vol.31514.DOI:10.1016/j.apcatb.2022.121550

Highly efficient photothermal catalysis of toluene over Co3O4/TiO2 p-n heterojunction: The crucial roles of interface defects and band structure

Xu, Jingcheng Zhang, Xiaodong Zhao, Shenghao Bi, Fukun Chen, Jinfeng Wang, Yuxin Cui, Lifeng Yang, Yang
Applied Catalysis2022，Vol.31514.DOI:10.1016/j.apcatb.2022.121550
✕
  • NSTL
  • Elsevier

Highly efficient photothermal catalysis of toluene over Co3O4/TiO2 p-n heterojunction: The crucial roles of interface defects and band structure

Xu, Jingcheng 1Zhang, Xiaodong 1Zhao, Shenghao 1Bi, Fukun 1Chen, Jinfeng 1Wang, Yuxin 2Cui, Lifeng 3Yang, Yang1
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作者信息

  • 1. Univ Shanghai Sci & Technol
  • 2. Inst Appl Biotechnol
  • 3. Shanghai Jiao Tong Univ
  • 折叠

Abstract

The unique physicochemical properties presented in the interface of composite oxides would result in some new features. Herein, MOx/TiO2 (M = Co, Mn, Ce, Cu, Fe) composites were constructed and successfully applied in the full spectrum light-assisted photothermal catalytic degradation of toluene. A unique p-n heterojunction with interface defects caused by lattice mismatch was constructed between TiO2 and Co3O4. The relationship between interface properties, band structure and photothermal catalytic performance based on experimental results and theoretical calculations had been studied comprehensively. The interfacial oxygen vacancy could improve ox-ygen mobility and provide more surface reactive oxygen species. The built-in electric field generated by electron transfer at the interface effectively promoted electron-hole pairs migration in the opposite direction. More active radicals and holes were provided to enhance the photothermal performance of CoTi catalyst. Furthermore, the possible reaction pathway of toluene and the photothermal synergy mechanism was proposed.

Key words

Photothermal catalysis/P-n heterojunction/Interface defects/Band structure/Toluene/VOLATILE ORGANIC-COMPOUNDS/VISIBLE-LIGHT/PHOTOCATALYTIC DEGRADATION/OXYGEN VACANCIES/PERFORMANCE/OXIDATION/NANOSHEETS/NANOCOMPOSITE/SPINEL/TIO2

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量96
参考文献量65
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