Molecules (Sep 2024)

Surfactant-Assisted Regulation of WS<sub>2</sub>/Tourmaline Microstructures for Excellent Photocatalytic Performance

  • Xianku Wang,
  • Kaibin Cui,
  • Yuqin Zhao,
  • Ming Hao,
  • Liang Bian,
  • Mingming Wang,
  • Fei Wang

DOI
https://doi.org/10.3390/molecules29194555
Journal volume & issue
Vol. 29, no. 19
p. 4555

Abstract

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The controllable electrical and optical properties of two-dimensional tungsten disulfide (WS2) attracted much attention in photocatalysis, but commercial development has been severely restricted by their restacking properties. Surfactant-assisted synthesis techniques can be considered as an effective option to break this bottleneck. In this work, the effect of surfactants including sodium dodecylbenzene sulfonate (SDBS), hexadecyltrimethylammonium bromide (CTAB), and polyvinylpyrrolidone (PVP) on the microstructure of WS2/tourmaline composites prepared by coupled hydrothermal and calcination methods was explored. The WS2 nanosheets were uniformly deposited on the tourmaline surface with the assistance of 1.0 mmol/L SDBS. Meanwhile, WS2/Tour-SDBS exhibited the highest rhodamine B (RhB) degradation activity, which was 1.8 and 2.3 times higher than that of photocatalysts prepared with CTAB and PVP under the same conditions, respectively. This study provides a new tactic for the fabrication of high-performance WS2-based composites.

Keywords