Citation: Hongli Wang, Jianan Liu, Xudong Xiao, Huiyuan Meng, Jie Wu, Chuanyu Guo, Mang Zheng, Xiaolei Wang, Shien Guo, Baojiang Jiang. Engineering of SnO₂/TiO₂ heterojunction compact interface with efficient charge transfer pathway for photocatalytic hydrogen evolution[J]. Chinese Chemical Letters, ;2023, 34(1): 107125. doi: 10.1016/j.cclet.2022.01.018 shu

Engineering of SnO₂/TiO₂ heterojunction compact interface with efficient charge transfer pathway for photocatalytic hydrogen evolution

Hongli Wang ^a ,
Jianan Liu ^a ,
Xudong Xiao ^{a, *,} ,
Huiyuan Meng ^b ,
Jie Wu ^a ,
Chuanyu Guo ^a ,
Mang Zheng ^a ,
Xiaolei Wang ^{a, *,} ,
Shien Guo ^c ,
Baojiang Jiang ^{a, *,}

a.
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150000, China
b.
School of Safety Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
c.
Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China

xiaoxudong0103@sina.com

2018040@hlju.edu.cn

jbj@hlju.edu.cn

Received Date: 12 December 2021
Revised Date: 5 January 2022
Accepted Date: 6 January 2022
Available Online: 13 January 2022

Figures(4)

Fabricating an efficient charge transfer pathway at the compact interface between two kinds of semiconductors is an important strategy for designing hydrogen production heterojunction photocatalysts. In this work, we prepared a compact, stable and oxygen vacancy-rich photocatalyst (SnO₂/TiO₂ heterostructure) via a simple and reasonable in-situ synthesis method. Briefly, SnCl₂–2H₂O is hydrolyzed on the TiO₂ precursor. After the pyrolysis process, SnO₂ nanoparticles (5 nm) were dispersed on the surface of ultrathin TiO₂ nanosheets uniformly. Herein, the heterojunction system can offer abundant oxygen vacancies, which can act as active sites for catalytic reactions. Meanwhile, the interfacial contact of SnO₂/TiO₂ grading semiconductor oxide is uniform and tight, which can promote the separation and migration of photogenerated carriers. As shown in the experimental results, the hydrogen production rate of SnO₂/TiO₂ is 16.7 mmol h⁻¹ g⁻¹ (4.4 times higher than that of TiO₂), which is owing to its good dynamical properties. This work demonstrates an efficient strategy of tight combining SnO₂/TiO₂ with abundant oxygen vacancies to improve catalytic efficiency.
- Photocatalysis,
- SnO₂-TiO₂ heterojunction,
- Solvent thermal,
- Charge transfer,
- Hydrogen evolution
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Engineering of SnO2/TiO2 heterojunction compact interface with efficient charge transfer pathway for photocatalytic hydrogen evolution

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通讯作者: 陈斌, bchen63@163.com

Engineering of SnO₂/TiO₂ heterojunction compact interface with efficient charge transfer pathway for photocatalytic hydrogen evolution