Preparation and Photocatalytic Performance of WS2/MgAl-LDH Composite

Abstract

Abstract: The WS₂/MgAl-LDH composite was prepared by a two-step hydrothermal method. The analysis of X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscope, transmission electron microscope and X-ray photoelectron spectroscopy show that the WS₂ nanoparticles are synthesized in situ between layers of MgAl-LDH. The composite was used as a catalyst to degrade 150 mg·L^-1 methyl orange solution with pH value of 3.The results show that the degradation rate of methyl orange solution exceeds 80% under simulated visible light irradiation for 75 min, and the cycling performance is excellent. Therefore, WS₂/MgAl-LDH composite is considered a promising photocatalyst.

Key words: WS₂, MgAl-LDH, two-step hydrothermal method, interlayer load, photocatalytic performance, degradation dye

CLC Number:

MENG Zihui, ZHENG Guoyuan, WANG Jilin, XI Yu, LONG Fei. Preparation and Photocatalytic Performance of WS₂/MgAl-LDH Composite[J]. Journal of Synthetic Crystals, 2020, 49(12): 2322-2330.

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Preparation and Photocatalytic Performance of WS₂/MgAl-LDH Composite

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