Citation: WANG Fang, WANG Xue-qin, CHENG Kai, WANG Jun-lei, SONG Hua. Effect of MoS₂ loading on the photocatalytic performance of MoS₂/TiO₂ nanocomposites in phenol degradation and the corresponding reaction mechanism analysis[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(8): 1001-1008. shu

Effect of MoS₂ loading on the photocatalytic performance of MoS₂/TiO₂ nanocomposites in phenol degradation and the corresponding reaction mechanism analysis

WANG Fang ¹ ,
WANG Xue-qin ¹ ,
CHENG Kai ¹ ,
WANG Jun-lei ¹ ,
SONG Hua ^1,2,,

1.
School of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
2.
Provincial Key Laboratory of Oil & Gas Chemical Technology, Northeast Petroleum University, Daqing 163318, China

Corresponding author: SONG Hua, songhua2004@sina.com
Received Date: 10 April 2017
Revised Date: 31 May 2017

Fund Project: The project was supported by the Province Postdoctoral Fund (LBH-Z15032) and Youth Fund of Northeast Petroleum University (NEPUBS201508)the Province Postdoctoral Fund LBH-Z15032Youth Fund of Northeast Petroleum University NEPUBS201508

Figures(9)

MoS₂/TiO₂ nanocomposites was prepared by mixing MoS₂ with hydrothermally synthesized TiO₂; the effects of MoS₂ loading on the photocatalytic performance of MoS₂/TiO₂ in phenol degradation were investigated. The XRD, SEM, EDS, FT-IR and UV-vis DRS characterization results show that for the MoS₂/TiO₂ nanocomposites, lamellar MoS₂ is uniformly dispersed around the TiO₂ nanoparticles. The increase of MoS₂ loading is beneficial to the photocatalytic degradation of phenol; with a MoS₂ loading of 27%, the MoS₂/TiO₂ nanoparticles exhibited the highest photocatalytic activity, over which phenol can be completely degraded in 80 min. The intermediates during reaction are further tracked to investigate the reaction kinetics of photodegradation of phenol over MoS₂/TiO₂ nanocomposties. The results reveal that an increase in MoS₂ loading is able to promote the formation of various intermediates such as benzoquinone, hydroquinone and catechol, which can further enhance the overall photodegradation efficiency.
- MoS₂/TiO₂,
- photocatalysis,
- phenol,
- intermediates,
- degradation mechanism
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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of MoS2 loading on the photocatalytic performance of MoS2/TiO2 nanocomposites in phenol degradation and the corresponding reaction mechanism analysis

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通讯作者: 陈斌, bchen63@163.com

Effect of MoS₂ loading on the photocatalytic performance of MoS₂/TiO₂ nanocomposites in phenol degradation and the corresponding reaction mechanism analysis