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J Colloid Interface Sci. 2014 Nov 1;433:9-15. doi: 10.1016/j.jcis.2014.07.015. Epub 2014 Jul 21.

Hydrothermal synthesis of In2S3/g-C3N4 heterojunctions with enhanced photocatalytic activity.

Author information

1
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
2
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: dlj@ujs.edu.cn.
3
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: chenmin3226@sina.com.

Abstract

Graphitic carbon nitride (g-C3N4) was hybridized by In2S3 to form a novel In2S3/g-C3N4 heterojunction photocatalyst via a hydrothermal method. TEM and HRTEM results reveal that In2S3 nanoparticles and g-C3N4 closely contact with each other to form an intimate interface. The as-obtained In2S3/g-C3N4 heterojunctions exhibit higher photocatalytic activity than those of pure g-C3N4 and In2S3 for the photodegradation of rhodamine B (RhB) under visible light irradiation. The enhanced photocatalytic performance of In2S3/g-C3N4 heterojunctions could be attributed to its wide absorption in the visible region and efficient electron-hole separation. On the basis of radical scavenger experiments, superoxide radicals and holes are suggested to play a critical role in RhB degradation over In2S3/g-C3N4 heterojunctions.

KEYWORDS:

Heterojunction; In(2)S(3) nanoparticle; Photocatalysis; g-C(3)N(4)

PMID:
25093943
DOI:
10.1016/j.jcis.2014.07.015

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