Novel thin film composite forward osmosis membrane of enhanced water flux and anti-fouling property with N-[3-(trimethoxysilyl) propyl] ethylenediamine incorporated

Novel thin film composite forward osmosis membrane of enhanced water flux and anti-fouling property with N-[3-(trimethoxysilyl) propyl] ethylenediamine incorporated
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掺入N-[3-(三甲氧基甲硅烷基)丙基]乙二胺的新型薄膜复合正渗透膜提高水通量和抗污性能

DOI:
10.1016/j.memsci.2016.07.034
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发表时间:
2016-12
影响因子:
9.5
通讯作者:
Yan Wang
Yan Wang
中科院分区:
工程技术1区
文献类型:
--
作者:
Yuan Gui Ma;Lifen Liu;Hao Wu;Yan Wang

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在这项工作中,采用有机-无机杂化化合物——N-[3-(三甲氧基硅基)丙基]乙二胺(NPED)作为胺单体与间苯二胺(MPD)混合,通过聚丙烯腈(PAN)基材上的界面聚合开发了新型薄膜复合(TFC)正向渗透(FO)膜。 PAN 底物用氢氧化钠进行改性,并通过改变水解时间进行优化。通过在选择性层中掺入NPED,形成的TFC膜表现出更好的亲水性、改善的水通量和抗污染性,从而具有优异的膜性能。通过改变水相中的 NPED 含量,可以通过各种表征研究 TFC 膜的表面性质和性能。此外,还研究了不同NPED含量的TFC膜在水性单体中的抗污染性能。
In this work, novel thin film composite (TFC) forward osmosis (FO) membranes are developed via interfacial polymerization on the polyacrylonitrile (PAN) substrate, using an organic-inorganic hybrid compound – N-[3-(trimethoxysilyl) propyl] ethylenediamine (NPED) as the amine monomer to mix with m-phenylenediamine (MPD). The PAN substrate was modified with sodium hydroxide and optimized by varying the hydrolyzation time. With the incorporation of NPED in the selective layer, the formed TFC membrane exhibits better hydrophilicity, improved water flux and fouling resistance, and therefore superior membrane performance. By varying the NPED content in the aqueous phase, the surface properties and performance of TFC membranes are investigated with various characterizations. In addition, the anti-fouling properties of the TFC membranes with different NPED content in the aqueous monomer are also studied.
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