改性纤维素的制备及其对铜离子去除的研究

A Study of the Preparation of Modified Fiber and the Removal of Its Copper Ions

探讨了以稻草为骨架材料制备纤维素，通过改性制得一种离子交换剂的方法及其对重金属Ｃｕ２＋的去除条件和吸附容量。结果显示：制备的这种改性纤维素对Ｃｕ２＋有很强的吸附能力，在ｐＨ≥６时，对Ｃｕ２＋的吸附容量为１０．５９ｍｇ／ｇ。

In this paper,the preparation of fiber with straw as its major material was explored.One way of ion exchanger and the removal condition and absorption capacity of heavy metal ions Cu 2+ were obtained.The results show that the preparation of this modified fiber has a strong absorbability of Cu 2+ ,when the value of pH is equal to or greater than 6,the absorption capacity of Cu 2+ is 10.59 mg/L,while it can be elutriated and reproduced by means of 5 percent of liquid ammonia solution.