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Photocatalytic Reduction of Cr(VI) on a 3.0% Au/Sr0.70Ce0.20WO4 Photocatalyst

التفاصيل البيبلوغرافية
العنوان: Photocatalytic Reduction of Cr(VI) on a 3.0% Au/Sr0.70Ce0.20WO4 Photocatalyst
المؤلفون: Huisheng Huang, Jia Yang, Xiaorui Sun, Mingdan Tan, Mingyan Fu, Yanling Tian
المصدر: ACS Omega, Vol 5, Iss 41, Pp 26755-26762 (2020)
ACS Omega
بيانات النشر: American Chemical Society (ACS), 2020.
سنة النشر: 2020
مصطلحات موضوعية: Diffraction, Materials science, Scanning electron microscope, General Chemical Engineering, General Chemistry, Article, Ion, Reduction (complexity), Metal, Chemistry, chemistry.chemical_compound, X-ray photoelectron spectroscopy, chemistry, visual_art, visual_art.visual_art_medium, Photocatalysis, Methanol, QD1-999, Nuclear chemistry
الوصف: Herein, a 3.0%-Au/Sr0.70Ce0.20WO4 sample was prepared for the photocatalytic reduction of the Cr2O7 2- ion. The photocatalyst was characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet-visible diffuse reflectance spectra. The Sr0.70Ce0.20WO4 sample presented a photocatalytic reduction activity that is better than those of the Ce-doped sample and the intrinsic sample. Thereafter, different metal elements, Cu, Ag, Au, and Pt, were used as cocatalysts, which were loaded on the Sr0.70Ce0.20WO4 sample. The 3.0%-Au/Sr0.70Ce0.20WO4 photocatalyst showed optimal photocatalytic reduction activity in a 8 vol % methanol solution (pH = 7) under visible light irradiation. The kinetic constant of the optimal one is 0.0039 min-1, which is 1.86 times that of the Sr0.70Ce0.20WO4 sample. The photocatalyst is stable enough after a 24 h photocatalytic experiment.
تدمد: 2470-1343
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d545c1ad60fa7de3d19d138c2965416d
https://doi.org/10.1021/acsomega.0c03743
حقوق: OPEN
رقم الأكسشن: edsair.doi.dedup.....d545c1ad60fa7de3d19d138c2965416d
قاعدة البيانات: OpenAIRE
الوصف
تدمد:24701343