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  • 标题:FABRICATION OF SEMICONDUCTOR PHOTOCATALYST AND ITS HIGH PHOTOCATALYTIC PERFORMANCE UNDER VISIBLE LIGHT IRRADIATION
  • 本地全文:下载
  • 作者:Guangyu Wu ; Fang Ma ; Ruofan Xiong
  • 期刊名称:Fresenius Environmental Bulletin
  • 印刷版ISSN:1018-4619
  • 出版年度:2021
  • 卷号:30
  • 期号:9
  • 页码:10482-10491
  • 语种:English
  • 出版社:PSP Publishing
  • 摘要:Recent years, photocatalytic technology is a compassionate of eco-friendly methods that has dis-played significant consideration in the environmen-tal fields. In this work,a series of high-performance AgzWO4/WO/RGO photocatalysts (AWR) were synthesized through a facile hydrothermal approach. The products were characterized by using X-ray dif-fraction (XRD),scanning electron microscopy (SEM),Raman spectra, UV-vis diffuse reflectance spectroscopy(DRS), photoluminescence(PL)spec-tra, X-ray photoelectron spectroscopy(XPS)and Brunauer-Emmett-Teller(BET) nitrogen adsorption apparatus. The results indicated that the as-prepared Ag2WO4/WO: particles were distributed on the sur-face of RGO sheets and the introduction of RGO could narrow the band gap of Ag2WO4/WO;. By us-ing decontaminations of methyleneblue(MB) model reactions, the photocatalytic efficiencies of AWR photocatalysts were evaluated. The AWR photocata-lysts exhibited superior photocatalytic activity under visible light irradiation. The photocatalytic activities of all AWR photocatalysts were higher than those of the WO3,AgzWO4 and Ag2WO4/WO; and about 98.15% MB was removed in 180 min. The possible mechanism of photocatalytic activity enhancement was proposed. The current work shows a design and synthesis of stable and high efficiency photocatalysts, applicable for the removal of the environmental or-ganic pollutants.
  • 关键词:Photocatalyst;visible light irradiation;methyleneblue
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