A Novel ZnS/ZnWO4 Nanocomposite with Enhanced Photocatalytic Properties
Wan Zhen Huang,
Hao Yong Yin,
Yi Fan Zheng,
Xu Chun Song.
In this study, a novel ZnS/ZnWO4 nanocomposite photocatalyst was synthesized through a
facile hydrothermal synthesis method. The as-prepared samples were characterized by energy dispersive
X-ray analysis (EDS), X-ray powder diffraction (XRD), transmission electron microscopy (TEM),
UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and so on. The ZnS/ZnWO4 nanocomposite
shows an enhanced photocatalytic activity for the degradation of rhodamine B (RhB) under simulated
solar light. The results show that ZnS/ZnWO4 nanocomposite photocatalysts have better photocatalytic activity than the
single ZnWO4 or ZnS. In the case of ZnS compounding, ZnS/ZnWO4 photocatalyst led to the lower recombination ratios
of photo-generated electron hole pairs and then higher photocatalytic performance. In addition, it has the potential to become
a useful technology for environmental cleanup without secondary pollution.
Keywords: Nanocomposite, photocatalyst, ZnWO4.
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