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Preparation and characterization of novel forward osmosis membrane incorporated with sulfonated carbon nanotubes
Li, Yonghao1,2; Zhao, Yuntao1,2; Tian, Enling1,2; Ren, Yiwei1,2,3
2018
摘要In this study, carbon nanotubes (CNTs) were modified with sulfonated groups and incorporated into the active layer of a forward osmosis (FO) membrane to achieve a desirable thin-film nanocomposite (TFN) FO membrane. Different concentrations of sulfonated carbon nanotubes (SCNTs) were added, and their impact on the FO membrane was also investigated, including the hydrophilicity, roughness, membrane morphology and FO performance. With the addition of SCNTs, the membrane surface got smoother and denser, and the hydrophilicity also improved significantly. Regarding FO performance, SCNTs-functionalized FO membranes exhibited higher water flux (J(w)) and lower reverse salt flux (J(s)). The optimal J(w) of 29.9 +/- 1.6 LMH was achieved by using 1 M NaCl solution as the draw solution (DS) and deionized (DI) water as the feed solution (FS), almost 140% higher than the control (21.3 +/- 2.1 LMH) and J(s) decreased to about 12%.
DOI10.1039/c8ra08900k
发表期刊RSC ADVANCES
ISSN2046-2069
卷号8期号:71页码:41032-41039
通讯作者Tian, Enling(tianenling@cigit.ac.cn) ; Ren, Yiwei()
收录类别SCI
WOS记录号WOS:000453551800062
语种英语