Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 553, Issue -, Pages 151-162Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2018.02.043
Keywords
PDA@GO; Dendrites-like 3D Ag microspheres; Molecularly imprinted nanocomposite membranes; Perm-selectivity performance; Ibuprofen
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Funding
- National Natural Science Foundation of China [U1507118, U1407123, 21406085]
- Natural Science Foundation of Jiangsu Province [BK20151350, BK20140580, BK20161367, BK20150536]
- Science and Technology Plan Project of Guangdong province [2013B010404044]
- Education project of Guangdong Province [2013KJCX0107, 2016KTSCX067]
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Inspired from the highly bioadhesive performance of polydopamine (pDA)-based layers, a facile method was developed to modify GO nanosheets with pDA (pDA@GO). The key design of the molecularly imprinted nanocomposite membranes (MINMs) was integrated pDA@GO nanosheets into the porous PVDF membranes as the highly adjustable active domains. Dendrites-like 3D Ag microspheres were obtained on the surface of nanosheets-infiltrated nanocomposite membranes (NS-NMs) to obtain high performance membranes. The as-prepared pDA coating layers not only modified GO nanosheets, but also could be used as a versatile platform for the further immobilizing dendrites-like 3D Ag microspheres on the surface of NS-NMs to improve anti-fouling property. Attribute to the highly adjustable active domains and dendrites-like 3D Ag microspheres, the as-prepared MINMs revealed an outstanding adsorption amount (61.55 mg g(-1)), a better hydrophilicity and regenerability. Most importantly, excellent perm-selectivity performance (beta(ketoprofen/ibuprofen) and beta(naproxen) (sodium/ibuprofen) were 6.55 and 6.63, respectively) could be also achieved, which is beneficial to adsorb and separate of ibuprofen.
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