Robust superhydrophilic polylactide (PLA) membranes with a TiO2 nano-particle inlaid surface for oil/ water separation

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	Robust superhydrophilic polylactide (PLA) membranes with a TiO2 nano-particle inlaid surface for oil/ water separation
	Liu, Fu; Xiong, Zhu; Lin, Haibo; Zhong, Yun; Qin, Yan; Lia, Tiantian
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017
卷号	5 期号:14 页码:6538-6545
ISSN号	2050-7488
英文摘要	To overcome the surface instability of traditional polymeric membranes especially with superwetting behaviour, a robust superhydrophilic surface was fabricated with nano-TiO2 inlaid on a hierarchical polylactide (PLA) ultrafiltration membrane via a spin coating process. Distinctly different from most previously reported nano-particle involved polymeric membranes, both the micro-/nano-architecture of the PLA membrane and the size matched nano-particle assembly constructed the robust superhydrophilic interface mimicking coral tentacle predatory behavior. The rigid surface based on the flexible polymeric membrane with the hierarchical architecture showed robust superhydrophilicity and underwater superoleophobicity even after long-term water washing treatment, which was also verified by the morphology, contact angle, XPS and adhesive force in contrast to smooth membranes. The asprepared PLA membrane showed excellent separation performance for varieties of oil/water mixtures with a robustly high permeate flux (above 950 L m(-2) h(-1) under 0.1 MPa) and oil rejection (above 99%) even after 10 cycles of operation. Besides, the superhydrophilic PLA membrane exhibited outstanding anti-protein fouling properties. The PLA membrane showed relatively high BSA and ink rejection as well as water flux recovery and continuous separation stability due to rigid interface strengthening effects. The unique interface combination strategy between functional nanoparticles and polymeric membranes provided a window of opportunity for constructing robust polymeric membranes for advanced applications e. g. oil/ water separation, ion exchange, in membrane catalytic reactors etc.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13887]
专题	2017专题
推荐引用方式 GB/T 7714	Liu, Fu,Xiong, Zhu,Lin, Haibo,et al. Robust superhydrophilic polylactide (PLA) membranes with a TiO2 nano-particle inlaid surface for oil/ water separation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(14):6538-6545.
APA	Liu, Fu,Xiong, Zhu,Lin, Haibo,Zhong, Yun,Qin, Yan,&Lia, Tiantian.(2017).Robust superhydrophilic polylactide (PLA) membranes with a TiO2 nano-particle inlaid surface for oil/ water separation.JOURNAL OF MATERIALS CHEMISTRY A,5(14),6538-6545.
MLA	Liu, Fu,et al."Robust superhydrophilic polylactide (PLA) membranes with a TiO2 nano-particle inlaid surface for oil/ water separation".JOURNAL OF MATERIALS CHEMISTRY A 5.14(2017):6538-6545.