AgInS2/g-C3N4复合材料光催化降解邻二氯苯性能

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Abstract AgInS₂/g-C₃N₄ photocatalysts had been synthesized by one-step hydrothermal method using g-C₃N₄ nanosheets as the template. The physical and chemical properties of the photocatalysts had been characterized by SEM, XRD, XPS, PL and SPV. The results indicated that AgInS₂ had been successfully loaded onto the surface of g-C₃N₄. The construction of the composites could broaden the light absorption range, improve the migration efficiency of photogenerated electron-hole pairs and reduce their recombination rate. The photocatalytic performance of the AgInS₂/g-C₃N₄ composites had been evaluated by using o-dichlorobenzene (o-DCB) as a simulated pollutant. The photodegradation efficiency of o-DCB by AgInS₂/g-C₃N₄ composites reached 62.7% under the irradiation of visible light for 8h, which was 2.13 and 1.76 times than those of g-C₃N₄ nanosheets and AgInS₂, respectively. The FTIR and ESR techniques had been used to understanding the reaction mechanism. It was found that superoxide radical activity was generated during the degradation process and the final products were carbon dioxide, water, et al.

Key words： AgInS₂ g-C₃N₄ photocatalysis o-dichlorobenzene

Received: 11 April 2019

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X511

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	Articles by authors
	WANG Xin
	XIONG Wei
	WANG Jin
	KANG Min-hui
	LI Xin-yong
	SHI Yong

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WANG Xin,XIONG Wei,WANG Jin等. Photocatalytic degradation of o-dichlorobenzene by AgInS₂/g-C₃N₄ composites[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(11): 4697-4703.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I11/4697

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