β-环糊精微球对Cu（II）的吸附性能研究

摘要

以水溶液中Cu（II）为吸附对象，考察了合成的β-环糊精微球（β-CDPs）对Cu（II）的吸附性能．研究了pH值、吸附温度、吸附时间、吸附剂用量及共存离子和离子强度等条件对β-CDPs吸附性能的影响，同时考察了β-CDPs的再生性能．最后，进行了β-CDPs对实际水样中Cu（II）的吸附分析．结果表明，合成的β-CDPs在最佳条件下对Cu（II）具有良好的吸附性能，β-CDPs对Cu（II）吸附率最大可达87.45%，且可再生使用．将该微球用于实际水样中Cu（II）的吸附研究，对电镀废水的最大吸附率为68.10%，对游泳馆废水的最大吸附率可达77.50%．%Adsorptionof Cu(II)in aqueous solution was investigated with as sorbent.The influences of pH,adsorption temperature,absorbent time,absorbent dosage,coexisting ions and ionic strength on adsorption performance of the microspheres were studied,and the reuse of the microspheres was also investigated.Finally,adsorptionof Cu(II) in actual water samples was carried out with the microspheres.The results show that the microspheres have better adsorption performance for lower concentrations of Cu(II)solution.Under the optimal conditions,the adsorption rate of Cu(II)can be achieved to the maximum 87.45%.Using the microspheres,the maximum adsorption rates of Cu (II)in electroplating wastewater and in water from a swimming pool were 68.10% and 77.50%,respectively.