Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation

doi:10.1016/j.memsci.2018.03.034

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	Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation
	Cao, XZ; Cao XZ(曹兴忠); Liu, YA; He, MR; Wu, MY; Jiao, ZW; Su, YL; Jiang, ZY; Zhang, P; 张鹏(正)
刊名	JOURNAL OF MEMBRANE SCIENCE
	2018
卷号	555 页码:337-347
关键词	Mussel-inspired Coordination interaction Interfacial nanochannel Nanocomposite membrane Ion/organic molecule selective permeation
ISSN号	0376-7388
DOI	10.1016/j.memsci.2018.03.034
文献子类	Article
英文摘要	Construction of nanochannels with a delicate structure in nanocomposite membranes has emerged as a promising way to realize selective permeation, but is always stumbled by the organic-inorganic incompatibility and poor nanofiller dispersion. As such, much effort focuses on introducing weak noncovalent or strong covalent interactions by tailoring the composition of nanofiller surface. However, too weak or too strong interfacial interactions may lead to unfavorable interfacial structures with inefficiency for ion/organic molecule separation. Herein, inspired by the metal-fortified adhesion phenomenon of marine mussels, we developed a facile interfacial polymerization approach mediated by moderate catechol-TiIV coordination interactions to fabricate TiO2-polyarylate (PAR) thin-film nanocomposite (TFN) membranes with selective interfacial nanochannels. Tannic acid (TA), a polyphenol rich in pyrogallol groups, was selected as the aqueous monomer with tetrabutyl titanate (TBT) in organic solution as the TiO2 precursor. TA could partially chelate with Ti-IV, control the sol-gel reaction and generate homogeneously dispersed TiO2 nanoparticles (NPs) during membrane formation. The residual catechol/pyrogallol groups in the PAR matrix can further form moderate catechol-TiIV coordinates during water compaction, constructing interfacial nanochannels with tunable structures (e.g. size and connectivity) spontaneously. The permeation of water and ions was facilitated, leading to an enhanced water flux as well as superior ion/organic molecule selectivity. Meanwhile, the TFN membrane showed a good long-term operational stability for dye/salt separation. Since the catechol groups can coordinate with various metal-based materials, this approach is applicable to tailor the organic-inorganic interfaces for a broad range of TFN membranes.
电子版国际标准刊号	1873-3123
WOS关键词	LOOSE NANOFILTRATION MEMBRANE ; FILM NANOCOMPOSITE TFN ; ULTRATHIN HYBRID MEMBRANE ; GRAPHENE OXIDE ; HIGH-FLUX ; PERVAPORATION DEHYDRATION ; CARBON NANOTUBES ; ANTIFOULING PROPERTIES ; SILICA NANOPARTICLES ; ENHANCED PERFORMANCE
WOS研究方向	Engineering ; Polymer Science
语种	英语
WOS记录号	WOS:000432587300035
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285916]
专题	高能物理研究所_粒子天体物理中心高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cao, XZ,Cao XZ,Liu, YA,et al. Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,555:337-347.
APA	Cao, XZ.,曹兴忠.,Liu, YA.,He, MR.,Wu, MY.,...&Zhang, RN.(2018).Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation.JOURNAL OF MEMBRANE SCIENCE,555,337-347.
MLA	Cao, XZ,et al."Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation".JOURNAL OF MEMBRANE SCIENCE 555(2018):337-347.