引用本文:
谭淑英, 汪玉庭, 彭长宏, 唐玉蓉, 栾兆坤. Schiff碱型和仲胺型壳聚糖-冠醚对金属离子的络合吸附性[J]. 应用化学,
1999, 16(1): 98-100.
Citation: Tan Shuying, Wang Yuting, Peng Changhong, Tang Yurong, Luan Zhaokun. Adsorption property of Schiff-base Type and Secondary Amine Type Chitosan-Crownethers[J]. Chinese Journal of Applied Chemistry, 1999, 16(1): 98-100.
Citation: Tan Shuying, Wang Yuting, Peng Changhong, Tang Yurong, Luan Zhaokun. Adsorption property of Schiff-base Type and Secondary Amine Type Chitosan-Crownethers[J]. Chinese Journal of Applied Chemistry, 1999, 16(1): 98-100.
Schiff碱型和仲胺型壳聚糖-冠醚对金属离子的络合吸附性
摘要:
壳聚糖(CTS)可有效地去除废水中的有毒金属离子[1],但其分子中的氨基可接受质子成盐,造成在酸性介质中溶解流失,使应用受到限制.近年来国内外学者对壳聚糖的改性进行了广泛的研究,制备了许多理化特性和用途不同的壳聚糖衍生物[2~8],扩大了其应用范围,提高了选择性.
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关键词:
- Schiff碱型壳聚糖冠醚
- / 仲胺型壳聚糖冠醚
- / 金属离子
- / 吸附性能
English
Adsorption property of Schiff-base Type and Secondary Amine Type Chitosan-Crownethers
Abstract:
Two N-Schiff base type chitosan-crownethers (S15-CTS and S18-CTS) were synthesized by reaction of 4'-formylbenzo-15-crown-5 and 4'-formylbenzo-18-crown-6 with chitosan respectively. N-secondary amine type chitosan-crownethers (Z15-CTS and Z18-CTS) were also prepared by reaction of N-Schiff base type chitosan-crow nethers with sodium borohydride.Their static adsorption properties for metal ions (Pd2+, Cu2+ and Hg2+) had been studied. The results showed that four chitosan-crow nethers had good adsorption character and adsorption selectivity for Pd2+ in the presence of Cu2+ or Hg2+.
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