Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (2): 313-320.DOI: 10.1016/S1872-2067(16)62568-8

• Article • Previous Articles     Next Articles

Three-dimensional MoS2/reduced graphene oxide aerogel as a macroscopic visible-light photocatalyst

Ruiyang Zhanga, Wenchao Wana, Dawei Lia, Fan Dongb, Ying Zhoua   

  1. a State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
    b Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, China
  • Received:2016-08-29 Revised:2016-09-26 Online:2017-02-18 Published:2017-03-14
  • Contact: 10.1016/S1872-2067(16)62568-8
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (U1232119, 21403172), the Sichuan Youth Science and Technology Foundation (2013JQ0034, 2014JQ0017), and the Innovative Research Team of Sichuan Province (2016TD0011).

Abstract:

Photocatalysis is regarded as an ideal technology for solving the urgent environmental and energy issues that we face today. Among the reported photocatalysts, molybdenum disulfide (MoS2) is very promising for applications in hydrogen production and pollutant photodegradation. However, its lack of active sites and the difficulty of recovering catalysts in powder form have hindered its wide application. Here, we report the successful preparation of a macroscopic visible-light responsive MoS2/reduced graphene oxide (MoS2/RGO) aerogel. The obtained MoS2/RGO aerogel exhibits enhanced photocatalytic activity towards hydrogen production and photoreduction of Cr(VI) in comparison with the MoS2 powder. In addition, the low density (56.1 mg/cm3) of the MoS2/RGO aerogel enables it to be used as an efficient adsorption material for organic pollutants. Our results demonstrate that this very promising multifunctional aerogel has potential applications in environmental remediation and clean energy production.

Key words: Molybdenum disulfide/reduced graphene oxide aerogel, Composite, Photocatalysis, Visible light, Adsorption