Citation: Ying Liu, Donglai Pan, Mingwen Xiong, Ying Tao, Xiaofeng Chen, Dieqing Zhang, Yu Huang, Guisheng Li. In-situ fabrication SnO₂/SnS₂ heterostructure for boosting the photocatalytic degradation of pollutants[J]. Chinese Journal of Catalysis, ;2020, 41(10): 1554-1563. doi: S1872-2067(19)63498-4 shu

In-situ fabrication SnO₂/SnS₂ heterostructure for boosting the photocatalytic degradation of pollutants

a The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China;
b School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, Anhui, China;
c Key Laboratory of Aerosol Chemistry and Physics of CAS, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, Shaanxi, China

Received Date: 23 February 2020
Revised Date: 21 March 2020

Fund Project: This work was supported by the National Natural Science Foundation of China (21677099, 21876113), Anhui Province (KJ2018A0571), Bengbu University (BBXY2018KYQD21), The Education Ministry Key Lab of Resource Chemistry (00007908), Shanghai Engineering Research Center of Green Energy Chemical Engineering, and Key Laboratory of Aerosol Chemistry and Physics (KLACP1901).

Heterostructure photocatalysts with a built-in electric field have become one of the most promising strategies to enhance photogenerated electron-hole pair separation. However, close contact between the two active components of heterogeneous photocatalysts remains a problem. Herein, the in-situ fabrication of an SnO₂/SnS₂ heterostructure photocatalyst was performed; the structure showed enhanced photocatalytic performance resulting from the tight-contact heterostructures. The results of photoelectrochemical measurements further verified that a tight-contact heterostructure improved the separation of photogenerated electron-hole pairs. The results of EIS Bode plots also demonstrated that such in-situ fabricated SnO₂/SnS₂ samples exhibited the longest carrier lifetime (41.6 μs) owing to the intimate interface of SnO₂/SnS₂ heterostructures.
- in-situ fabrication,
- SnO₂/SnS₂ heterostructure,
- Photo-degradation,
- Photogenerated carrier separation
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In-situ fabrication SnO₂/SnS₂ heterostructure for boosting the photocatalytic degradation of pollutants