高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (4): 535.

• 论文 • 上一篇    下一篇

天然高分子壳聚糖作为吸附剂的吸附特性研究

黄金明, 金鑫荣   

  1. 华东化工学院化学系, 上海, 200237
  • 收稿日期:1991-03-19 出版日期:1992-04-24 发布日期:1992-04-24
  • 通讯作者: 金鑫荣

A Study of Adsorption Property of Natural Polymer Chitosan as Adsorbent

HUANG Jin-ming, JIN Xin-rong   

  1. Department of Chemistry, East China Institute of Chemical Technology, Shanghai, 200237
  • Received:1991-03-19 Online:1992-04-24 Published:1992-04-24

摘要: 甲壳素经化学改性制得的壳聚糖吸附Cu2+、Ni2+、Zn2+、Ca2+、Rb+、Cs+、Cd2+、Pb2+等离子的研究已有报道[1],但吸附Pd2+等贵金属离子的研究尚不多见.本文报道了壳聚糖及其交联产物的造粒方法,并测定了该糖吸附Hg2+、Cu2+、Ag+、Pd2+等离子的特性.结果表明,化学交联后的颗粒(作吸附剂)在酸性条件下仍保持相当好的刚性,对Pd2+离子的吸附容量较大,在Pd2+、Cu2+共存时可选择性吸附Pd2+.

关键词: 壳聚糖, 吸附剂,

Abstract: Chitosan and the particles of its crosslinked derivatives were manufactured,and the adsorption properties for Hg2+ ,Cu2+ , Ag+ and Pd2+ were studied in this paper.The result indicates that the particles keep its rigidity in the acidic solution,the capacity for Pd2+ is 480 mg/g, and it has an adsorption selectivity to Pd2+ when Cu2+ and Pd2+ are present simultaneously in the solution.These particles could be used in collecting precious metals from waste water.

Key words: Chitosan, Adsorbent, Palladium

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