J. Mater. Sci. Technol. ›› 2020, Vol. 41: 88-97.DOI: 10.1016/j.jmst.2019.09.021

• Research Article • Previous Articles     Next Articles

Synthesis of unique-morphological hollow microspheres of MoS2@montmorillonite nanosheets for the enhancement of photocatalytic activity and cycle stability

Peng Chenab, Shilin Zengb, Yunliang Zhaob*(), Shichang Kangb, Tingting Zhangb, Shaoxian Songa*()   

  1. aHubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, China
    bSchool of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, China
  • Received:2019-07-04 Revised:2019-08-21 Accepted:2019-09-10 Published:2020-03-15 Online:2020-04-10
  • Contact: Zhao Yunliang,Song Shaoxian

Abstract:

In this work, MoS2@montmorillonite nanosheets hollow microspheres (MoS2@MMTNS-HMS) with a novel morphology structure was successfully synthesized through loading MoS2 to the surface of MMTNS-HMS via hydrothermal method. The novel material has been characterized through the measurements of SEM, TEM, Raman spectra and UV-vis absorption spectra. The results have shown that MoS2@MMTNS-HMS emerges higher light-utilization efficiency, density of edge active sites and separation of photoelectrons, owing to its unique hollow structure, vertically-aligned MoS2 nanosheets, which greatly enhances its photocatalytic activity. Furthermore, the cycle stability of MoS2@MMTNS-HMS is much higher than that of pristine MoS2, which is attributed to that MMTNS-HMS greatly inhibits the oxidation of MoS2 during photocatalytic. MoS2@MMTNS-HMS could be a promising photocatalyst for the applications in the elimination of organic pollutants.

Key words: MoS2, Montmorillonite, Hollow microsphere, Photocatalytic, Methyl orange