壳聚糖烷基化及其对Cr(Ⅵ)离子吸附研究

Alkylation of chitosan and its adsorption for Cr(VI)

将壳聚糖烷基化,用正交试验法研究了温度、时间、Cr(Ⅵ)离子浓度、吸附剂用量、酸度对烷基化壳聚糖吸附Cr(Ⅵ)离子的影响.实验结果表明烷基化壳聚糖对一定浓度Cr(Ⅵ)离子溶液的最佳吸附条件为:温度20 ℃、pH=6～8、吸附时间4 h.

Alkylation of chitosan was carried out. The effect of temperature,time, concentration of Cr（Ⅵ ）, me amount of sorbent and pH value on adsorption of Cr（Ⅵ） were investigated by use of orthogonal experiment. The results show that the optimum are as follows, temperature of 20 ℃, pH of 6-8, and adsorption time of 4 h.