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Development of sulfonated graphene oxide polyamide thin-film composite membranes for forward osmosis
Galagedara, Yeshan R.1,2; Perera, M. Gimhani N.1,2; Ren, Yiwei1,2; Jayaweera, Mahesh3; Zhao, Yuntao1,2; Weerasooriya, Rohan4
2018-12-01
摘要We fabricated a novel thin-film composite (TFC) membrane by integrating sulfonated graphene oxides (SGO) in its active layer. This novel membrane holds a great promise in forward osmosis (FO). The SGO was effectively synthesized from graphene oxide (GO), as it possesses a high hydrophilic nature, which in turn imparts enhanced desalination capacity for TFC-FO membranes. The structure and properties of TFC, GO-incorporated TFC membranes (GTFC) and SGO-incorporated TFC membranes (STFC) were characterized by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), and atomic force microscopy (AFM), and SGO incorporation was proven to be successful. Osmotic performance tests showed that STFC-FO membranes achieved higher water flux and reverse salt flux selectivity than GTFC-FO and TFC-FO membranes. The best STFC-FO membrane exhibited the water flux of 27.14 LMH with the specific reverse salt flux of 0.13 g/L. The SGO incorporation onto membrane also contributed to its decreased fouling propensity.
关键词Antifouling Interfacial polymerization Permeability Reverse salt flux Water flux
DOI10.5004/dwt.2018.23237
发表期刊DESALINATION AND WATER TREATMENT
ISSN1944-3994
卷号136页码:111-119
通讯作者Ren, Yiwei(renyiwei@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000452207000011
语种英语