分别在由Cu2+,Cd2+,Ni2+组成的单组分、双组分、三元组分体系中,通过改变金属离子起始浓度(1-15 mmol/L)及溶液pH值(1～6),分析了三乙烯四胺交联壳聚糖(CCTS)对金属离子的吸附情况:当溶液pH3时,pH值对吸附量影响比较小;在双组分及三元组分溶液中,离子起始浓度配比对吸附量影响比较大,交联附剂对Cu2+,Cd2+,Ni2+不具备选择吸附性能,但是具备比较好的吸附能力,在吸附前溶液中金属离子浓度C0为3.0 mmol/L单组分溶液中,吸附量Qcd2+、Qcu2+、QNi2+分别为2.57 mmol/g(pH=5)、2.19 mmol/g(pH=6)、1.90 mmol/g(pH=6).
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