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Polydopamine‐coated poly(vinylidene fluoride) membranes with high ultraviolet resistance and antifouling properties for a photocatalytic membrane reactor
Author(s) -
Muchtar Syawaliah,
Wahab Mukramah Yusuf,
Fang LiFeng,
Jeon Sungil,
Rajabzadeh Saeid,
Takagi Ryosuke,
Mulyati Sri,
Arahman Nasrul,
Riza Medyan,
Matsuyama Hideto
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47312
Subject(s) - membrane , coating , materials science , biofouling , chemical engineering , photocatalysis , fluoride , irradiation , filtration (mathematics) , ultraviolet , composite material , polymer chemistry , chemistry , organic chemistry , catalysis , inorganic chemistry , biochemistry , physics , statistics , mathematics , optoelectronics , nuclear physics , engineering
We modified poly(vinylidene fluoride) (PVDF) membranes with a polydopamine (PDA) coating for photocatalytic membrane reactor application with appropriate UV resistance and studied the effects of the PDA coating conditions (i.e., coating time and dopamine concentration) and UV irradiation time on the modified PVDF membrane properties. The PVDF membrane that was surface‐coated with the appropriate dopamine solution concentration and coating time played a key role in controlling the membrane properties and in protecting the modified membrane against UV radiation. The optimization of the coating condition not only completely protected the modified membrane from free‐radical attack initiated through UV irradiation but also improved the membrane hydrophilicity, antifouling properties, filtration performance, and mechanical strength of the membrane. UV irradiation of the membrane that was surface‐coated with a high‐concentration dopamine solution for a long coating time resulted in a higher mechanical strength than that of the membrane without the application of UV irradiation. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47312.