两性修饰壳聚糖/凹凸棒土对铬离子的吸附性能研究

Research on Adsorption Properties of Chromium Ions by Amphoteric Modified Chitosan/Concave and Convex Soil

壳聚糖是一种资源丰富的天然高聚物。壳聚糖原材料丰富,无毒无害,具有耐碱、抗血栓等功能,还具有很高的吸附性能。可将壳聚糖进行改性,研究其吸附性能。凹凸棒土是苏睆地区特色矿产资源。它具有优良的吸附、脱色、离子交换、热稳定、造浆和高温变相等性能。以凹凸棒土为吸附材料,得到改性凹凸棒土,通过对比研究吸附性能。

Chitosan is a kind of natural polymer with abundant resources.Because Chitosan raw materials rich,but also nontoxic harmless,alkali resistance,anti-thrombosis and other functions.In addition,it also has a high adsorption performance.Chitosan can be modified,and then with chromium ion solution,under different conditions for adsorption research.Concave and convex soil is a characteristic mineral resource in Su Yue area.It has excellent adsorption,decolorization,ion exchange,thermal stability,pulping and high temperature disguised properties,then the concave and convex soil as the adsorption material for the purpose.The hydrochloric acid was acidified,the modified concave rod soil was obtained,and then the adsorption experiment of the solution containing chromium ions was carried out,and its adsorption performance was studied under different conditions.