Positively charged composite nanofiltration membrane from quaternized chitosan by toluene diisocyanate cross-linking

被引：38

作者：

Huang, Ruihua ^{[1
,2
]}

Chen, Guohua ^{[2
]}

Yang, Bingehao ^{[3
]}

Gao, Congjie ^{[2
]}

机构：

[1] NW A&F Univ, Coll Sci, Xian 712100, Peoples R China

[2] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China

[3] Xian Inst Geol & Mineral Resource, Xian 710054, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2008年 / 61卷 / 03期

关键词：

2-Hydroxypropyltrimethyl ammonium chloride chitosan; positively charged composite nanofiltration membrane; toluene diisocyanate; cross-linking;

D O I：

10.1016/j.seppur.2007.11.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

2-Hydroxypropyltrimethyl ammonium chloride chitosan/polyacrylonitrile (HAMPAN) positively charged composite nanofiltration (NF) membrane was prepared using HACC as active layer, PAN ultratiltration (UF) membrane as support layer, and toluene diisocyanate (TDI) as cross-linking reagent. FTIR-ATR spectrum was employed to characterize the cross-linking on the resultant membrane surface. Besides, some characteristics such as the permeability of pure water and the rejection performance to different salt solutions were evaluated. At 20 degrees C and 30 L h(-1) of cycling flow, the permeability of pure water through this membrane was 8.96 kg m(-2) h(-1) MPa-1. The rejection to different salt solutions increased in the order of Na2SO4, MgSO4, NaCl and MgCl2. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：424 / 429

页数：6

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