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
收藏
页码：424 / 429
页数：6
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