天然高分子吸附剂研究  

STUDIES ON NATURAL MACROMOLECULAR ADSORBENTS IX. ADSORPTION CHARACTERISTICS OF CARBOXYMETHYL CHITOSAN RESIN FOR Zn(Ⅱ) AND Pb(Ⅱ) IONS

作　　者：曲荣君[1] 王春华[1] 唐清华[1] 刘庆俭[2] 

机构地区：[1]烟台师范学院化学系 [2]山东师范大学化学系

出　　处：《水处理技术》1996年第3期173-176,共4页Technology of Water Treatment

摘　　要：研究了羧甲基化的交联壳聚糖树脂（ＡＣ－ＣＴＳ）对Ｚｎ（Ⅱ）Ｐｂ（Ⅱ）离子的吸附性能。结果表明，该树脂对Ｐｂ２＋比对Ｚｎ２＋具有更强的吸附选择性，其对Ｐｂ２＋和Ｚｎ２＋的吸附容量分别为６６０．９７和１７２．００ｍｇ·ｇ－１；其ＫＰｂ２＋／Ｚｎ２＋＝３．８４；其吸附的最佳ｐＨ值分别为５．４和４．０；在低浓度时，ＡＣ－ＣＴＳ对两种离子的吸附率均可达１００％。The adsorption properties of crosslinked carboxymethyl chitosan resin (AC-CTS) for Zn(Ⅱ) Pb(Ⅱ) ions were investigated. The experimental results showed that resin had better adsorption selectivity for Pb 2+ than for Zn 2+ . The coefficient of selectivity (K Pb 2+ /Zn 2+ was about 3.84 and its adsorption capacities for Pb 2+ and Zn 2+ were 660.97 and 172.00 mg·g -1 resin respectively at pH values 5.4 and 4.0 separately.

关 键 词：天然高分子 羧甲基壳聚糖 树脂 吸附剂 

分 类 号：TQ424.3[化学工程]