水热合成的MoS<sub>2</sub>/石墨烯/N-TiO<sub>2</sub>复合材料的可见光催化性能

doi:10.11896/j.issn.1005-023X.2018.08.002

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Abstract MoS₂/graphene/N-TiO₂ composites (MGNT) were prepared using GO, H₂MoO₄, (NH₂)₂CS, and TiN as the raw materials. The phase composition, morphology, chemical states of elements, and optical absorption performance were characte-rized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), respectively. An obvious red shift of absorption edge and enhanced intensity were observed for MGNT compared with N-TiO₂(NT) and graphene/N-TiO₂(GNT). The photocatalytic performance was evaluated via the photodegradation of methylene blue (MB) under visible light irradiation. The results showed that the photocatalytic performance of MGNT was 1.82 and 1.59 times of NT and GNT, respectively. In addition, the absorptivity of MGNT was 11.14 and 4.77 times of NT and GNT.

Key words： MoS₂ graphene TiO₂ synergetic effect visible-light photocatalysis

Published: 25 April 2018 Online: 2018-05-11

CLC number:

O649.4

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	Articles by authors
	LIN Xiaojing
	SUN Mingxuan
	HU Mengyuan
	YAO Yuan
	WANG Wentao

Cite this article:

LIN Xiaojing,SUN Mingxuan,HU Mengyuan, et al. Enhanced Visible-light Photocatalytic Activity of Hydrothermally Synthesized MoS₂/Graphene/N-TiO₂ Composites[J]. Materials Reports, 2018, 32(8): 1213-1217.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.08.002 OR https://www.mater-rep.com/EN/Y2018/V32/I8/1213

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