Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 136, Issue 14, Pages -Publisher
WILEY
DOI: 10.1002/app.47312
Keywords
free radical scavenger; photocatalytic membrane reactor; polydopamine; UV-resistance
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Funding
- Ministry of Research, Technology, and Higher Education of the Republic of Indonesia under the Program Magister menuju Doktor Sarjana unggul (PMDSU) scholarship through the Peningkatan Kualitas Publikasi International (PKPI) program
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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. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47312.
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