Photocatalyic activity of double pore structure TiO2/SiO2 monoliths |
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| Affiliation: | 1. School of Environmental and Chemical Engineering, Xian Polytechnic University, Xian 710048, China;2. School of Textile and Materials, Xian Polytechnic University, Xian 710048, China;1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China;3. Foshan Graduate School of Northeastern University, Foshan 528300, China;4. Structure Analysis Division, Testing Center, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China;1. Changzhou Institute of Engineering Technology, Changzhou 213164, PR China;2. School of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China;1. Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Yanbian University, Yanji 133002, China;2. Department of Chemistry, Yanbian University, Yanji 133002, China;1. Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China;2. School of Materials Science and Technology, University of Shanghai for Science and Technology, No. 516 Jungong Rd., Shanghai 200093, China |
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| Abstract: | The TiO2/SiO2 monoliths with macro- and mesopore structure have been synthsized by sol-gel method. The double pore structure was developed by adding polyethylene glycol and urea in the precurser solution. The morphology, crystallinity, surface area and porosity of the TiO2/SiO2 monoliths were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), N2 adsorption/desorption and mercury intrusion techniques. The photocatalytic activity and applicablity of the monoliths were investigated by degradation of methylene blue and purificaiton of actual dyeing and finishing wastewater. The result showed the prepared TiO2/SiO2 monolith to have enhanced photocatalytic activity, reusability and easy recovery, so it may be considered a promising material for practical application in wastewater treatment. |
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| Keywords: | Photocatalytic activity Monolith |
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