CIESC Journal ›› 2004, Vol. 55 ›› Issue (6): 958-962.
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FU Zhigao;SU Haijia;TAN Tianwei
Online:
Published:
付志高;苏海佳;谭天伟
Abstract: A new sorbent of heavy metal ion, surface molecular imprinting chitosan(CTS) resin on the surface of mycelium, was prepared by using Ni2+ as the molecule imprinting agent and epichlorohydrin(EPH) as the crosslinking agent. The resin produced has a good adsorption capacity and mechanical strength.The ratio of chitosan, mycelium and EPH was 1g∶20g∶0.5ml. The ratio of the EPH used to crosslink mycelium, crosslink CTS and mix the crosslinked mycelium and crosslinked CTS was 2∶2∶1. The adsorption capacity of the resin was 55 mg8226;g-1 at initial Ni2+ concentration 200mg8226;kg-1 in the solution and the adsorption capacity increased by 3 times as compared with that of mycelium.Moreover, it had a fast adsorption rate and was less affected by salt concentration in the solution.Its stability was also better than that of mycelium and crosslinked mycelium in the acidic solution.
Key words: 壳聚糖, 表面分子印迹, 菌丝体, 吸附特性, 金属离子
摘要: 以Ni2+离子为印迹分子、环氧氯丙烷为交联剂,在菌丝体表面制备出壳聚糖分子印迹树脂.合成的树脂与纯菌丝体相比,吸附容量提高2倍左右.优化了制备工艺,同时对树脂的吸附性能及其影响因素进行了初步研究.
关键词: 壳聚糖, 表面分子印迹, 菌丝体, 吸附特性, 金属离子
FU Zhigao, SU Haijia, TAN Tianwei. PREPARATION AND ADSORPTION BEHAVIOR OF MOLECULAR IMPRINTING CHITOSAN RESIN ON SURFACE OF MYCELIUM[J]. CIESC Journal, 2004, 55(6): 958-962.
付志高, 苏海佳, 谭天伟. 菌丝体表面分子印迹壳聚糖树脂的制备及其吸附性能 [J]. 化工学报, 2004, 55(6): 958-962.
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