天然高分子吸附剂研究　Ⅰ．乙二醇双缩水甘油醚交联壳聚糖的制备及其对Cu（Ⅱ）、Ni（Ⅱ）的吸附性能

Studies of Natural Macromolecular Adsorbent I. Preparation of Chitosan Crosslinked by Ethylene Glycol Bisglycidyl Ether and Its Properties of Adsorbing Cu ( Ⅱ ) and Ni ( Ⅱ)

报道了乙二醇双缩水甘油醚改性壳聚糖的制备及其对Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）的吸附性能，同时考察了ｐＨ值、时间、温度等因素对吸附的影响．结果表明，改性后的壳聚糖具有不流失，易再生，在Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）共存时能选择吸附Ｃｕ（Ⅱ）的特点．

The preparation and properties of adsorbing to Cu (Ⅱ) and Ni(Ⅱ) of chitosan modified by ethylene glycol bisglycidal ether were studied. The effects of pH, time and temperature on the adsorption were investigated. The results show that the modified chitosan is easy to be regenerated and uneasy to run off in acidic solution and it has an adsorption selectivity for Cu( Ⅱ) when Cu( Ⅱ ) and Ni(Ⅱ) are present simultaneously in the solution.