新型化学吸附纤维制备及其对Cu^(2+)的吸附性能

PREPARATION OF CLEASING FIBER AND ITS ADSORPTION FOR Cu^(2+)

以环氧基为交联桥,制备了化学吸附纤维并获得了适宜制备工艺参数,同时从动力学和热力学角度考察了其静态吸附Cu2+的行为。结果表明,环氧化是纤维制备的关键,化学吸附纤维对Cu2+吸附量可达6.24mg/g,该吸附符合Langmui r模型,属放热吸附,吸附能力主要来自化学吸附纤维β-环糊精中羟基与络合Cu2+作用,络合比为4:1。

In this paper, a new cellulose fiber called Cleasing Fiber was prepared and several parameters were obtained. From adsorption kinetics and adsorption Isotherm, its adsorption for Cu^2＋ was investigated .The results showed, it is vital that cellulose fiber reacted with epichlorohydrin during preparation;the adsorption capacity of the new fiber for Cu^2＋ reached to 6.24mg/g; the adsorption accords with Langmuir Model.