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以壳聚糖为原料,利用Mannich反应原理,在壳聚糖分子的氨基上引入具有还原性能的亚磷酸基团,制备出新型还原性壳聚糖吸附剂RCA,并考察其对Cr(Ⅵ)的还原吸附效果.研究结果表明,当反应温度为80℃,戊二醛用量为45.0%,亚磷酸用量为30.0%,反应时间为2h时,制得的还原性壳聚糖吸附剂对Cr(Ⅵ)的还原吸附率为94.8%.此外,该吸附剂具有较强的耐酸碱能力和抗氧化能力.红外光谱分析和元素分析结果表明,壳聚糖分子上已成功引入亚磷酸基团.
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离子交换与吸附
ISSN: 1001-5493
CN: 12-1147/O6
Year: 2012
Issue: 2
Volume: 28
Page: 110-118
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 7
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