Dopamine Triggered the Polymerization and Co-Deposition of Hema on Pvdf Membranes to Prepare Oil-Water Separation Membranes
A one-step co-deposition method based on dopamine and hydrophilic monomer (HEMA) was proposed for the modification of polyvinylidene fluoride (PVDF) membrane to ameliorate its oil-water separation performances and hydrophilicity. The amount of HEMA added in the reaction solution had been changed to prepare a range of modified membranes, for the improved membrane, the minimum water contact angle can reach 14 °, and the maximum underwater oil contact angle can reach about 150 °, additionally,the pure water flux for the improved membrane researches 9668 L·m-2·h-1·bar-1, which shows the excellent hydrophilicity. In addition, the separation efficiency of the improved membrane for a variety of oil-water emulsions exceeds 98%, and has good permeability and circulating oil resistance. At the same time, this approach is also applicable to other membranes on account of the extensive availability of dopamine
Year of publication: |
[2022]
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Authors: | Fu, Junjie ; Lian, Qi ; Zhao, Xiaojia ; Liu, Shuohai ; Jia, Zhaojing ; Gong, Yupeng ; Zhang, Shengchao ; Peng, Guirong |
Publisher: |
[S.l.] : SSRN |
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