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Author(s): |
Ying-chun Miao, Institute Chemistry & Chemical Engineerin, Qujing Normal Universit, Qujing, China
Neng-bang Hou, Institute Chemistry & Chemical Engineerin, Qujing Normal Universit, Qujing, China
Shu Zhao, Institute Chemistry & Chemical Engineerin, Qujing Normal Universit, Qujing, China
Jia-qiang Wang, Department of Applied Chemistry, Yunnan University, Kunming, China
Zhong-biao Zhai, Kunming Metallurgy Research Institute, Kunming, China |
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Abstract: |
SiO2 and Co/SiO2 microspheres was synthesized using TEOS as starting materials by self-assembly processes and used for the photodegradation of GV, ST, and RB under solar light. The samples were characterized by a combination of various physicochemical techniques, such as, diffuse reflectance UV–vis, X-ray diffraction, SEM, and FT-IR. The size distribution of SiO2 and Co/SiO2 microspheres is relatively narrow. The SiO2 for the three dyes have not photoactivity under solar light. By contrast, the Co/SiO2 exhibited high photodegradation yields that is 79%，45%, and 33% for GV, ST, and RB under solar light, respectively.
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