Preparation of reusable glass hollow fiber membranes and methylene blue adsorption |
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| Affiliation: | 1. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300380, People’s Republic of China;2. School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300380, People’s Republic of China;1. Kyoto Municipal Institute of Industrial Technology and Culture, 91, Chudoji Awatacho, Shimogyo-ku, Kyoto, 600-8815, Japan;2. Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University, Hachioji, 192-0015, Japan;1. Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China;2. University of Chinese Academy of Sciences, Beijing, 100049, China;3. Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China;4. Shanghai Institute of Laser Plasma, Chinese Academy of Engineering Physics, Shanghai, 201800, China;1. Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan;2. Department of Materials Science and Engineering, Shanghai University, Shanghai, PR China;3. Department of Orthopaedic Surgery, Tokyo Medical University, 6-7-1, Nishi-Shinjuku, Shinjuku-ku, 160-0023 Tokyo, Japan;4. The Center for Advanced Medical Engineering and Informatics, Osaka University, Yamadaoka, Suita, 565-0871 Osaka, Japan;5. Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, 465 Kajii-cho, Kawaramachi dori 602-0841 Kyoto, Japan;1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;3. Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China;4. State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450001, China;5. AECC Harbin Dongan Engine Co, Ltd., Harbin 150001, China |
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| Abstract: | In this work, the PVDF/glass as-prepared composite membrane was prepared through phase-inversion method and used to adsorb methylene blue dye. The results of SEM and BET showed that the membrane had an asymmetric nanoscale porous structure. The electronegativity on the surface of membrane was determined through zeta potential test. The adsorption properties of as-prepared composite membrane and glass membrane were studied through testing the removal ratio of methylene blue from aqueous solution. Then the effects of membranes dose, pH value, temperature and initial concentration on the removal ratio were systematically studied. The adsorption mechanism was also studied. The adsorption kinetics and adsorption isotherm fitted well with the pseudo-second-order model and Freundlich model, respectively. In addition, the adsorption efficiency of glass membrane basically remained 85% after eight repeated adsorption-calcination cycles. The obtained membranes could be reused for methylene blue removal with high efficiency for multiply times. |
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| Keywords: | Glass hollow fiber membrane Adsorption Methylene blue Reusability |
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