INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Investigation of Preparation and Photocatalytic Properties of Hydrophilic PVDF/TiO2 Composite Membranes |
YU Xiang1, GUI Jiuqing1, SONG Zihao1, ZHANG Xueyin1, DONG Xianhui1, LI Yue1, ZHANG Yaqi2
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1 Department of Material Engineering, Henan University of Engineering, Zhengzhou 450007, China 2 College of Materials Science and Engineering, Tiangong University, Tianjin 300387, China |
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Abstract In this study, PVDF/TiO2 composite membranes were prepared via solution scraping method and ultrasonic cleaning which can drill and change its hydrophilic. Micromorphology, mechanical properties and photocatalytic properties of PVDF/TiO2 composite membranes were studied and analyzed. The results show that: the tensile strength and photocatalytic degradation ability of samples increase at first and then get worse with increasing of TiO2, and they simultaneously reach the maximum when addition of 10% TiO2. Furthermore, the photocatalytic degradation of samples conforms to the first-order kinetic models. Moreover, with the increment of ultrasonic time, the sample membranes are becoming less hydrophilic but they are still hydrophilic membranes, and their photocatalytic degradation rate increases first and then decreases. Further, when the ultrasonic time is 3 h, the photocatalytic degradation rate reaches the extreme value.
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Published: 23 February 2021
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Fund:This work was financially supported by the National Natural Science Foundation of China (51608175), Program for Science and Technology Innovation Talent in Universities of Henan Province (20HASTIT016), Key Scientific and Technological Project of Henan Province (202102310605). |
Corresponding Authors:
yxpolymer@sina.com;liyue0128@163.com
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About author:: Xiang Yu received his Ph.D. degree in polymer che-mistry and physics from Zhengzhou University in 2010. He is currently an associate professor in School of Materials and Chemical Engineering of Henan University of Engineering. His research interests are the design, preparation and characterization of polymer composites, 3D printing materials and photocatalytic materials. Yue Li received her Ph.D. degree in chemical enginee-ring and technology from Hunan University in 2014. She is currently an associate professor in School of Chemical Engineering and Printing and Dyeing Engineering of Henan University of Engineering. She mainly engaged in the development and utilization of environmental energy functional materials, non-toxic treatment of heavy metal ions. |
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