中文摘要：

用磷酰氯（POCl3）对胶原纤维进行磷酸化,制备磷酸化胶原纤维（P-CF）吸附材料,研究了P-CF对Cu^2＋的吸附特性。结果表明：P-CF具有较好的化学稳定性,在pH 2.0-5.5范围内,无磷脱落;在pH 3.5-5.5范围内,P-CF对Cu^2＋表现出较强的吸附能力,当Cu^2＋初始浓度为1.0 mmol/L,pH为4.5时,平衡吸附量达到0.73mmol/g。随着温度的升高,平衡吸附量略有增加。P-CF对Cu^2＋的吸附等温线符合Langmuir方程,吸附动力学符合拟二级速率方程。进一步研究表明,溶液离子强度对P-CF吸附Cu^2＋的影响不明显。作为一种新的有效的吸附材料,P-CF可望用于废水中重金属离子的吸附去除。

英文摘要：

　A novel adsorbent was prepared by the phosphorylation of collagen fiber（P-CF） with phosphorus oxychloride（POCl3） and its adsorption behaviors to Cu^2＋ were investigated.Experimental resultes indicated that no phosphorus was leaked out in the pH range of 2.0-5.5,which implied the chemical stabilization of P-CF is satisfactory.In the pH range of 3.5-5.5,it was found that P-CF exhibited excellent adsorption capacity to Cu^2＋.The adsorption capacity at pH 4.5 was 0.73 mmol/g when the initial concentration of Cu^2＋ was 1.0 mmol/L.The adsorption capacity was slightly increased as the increase of temperature.The adsorption isotherm and the adsorption kinetics of Cu^2＋ on P-CF can be well described by the langmuir equation and the pseudo-second-order rate model respectively.Further investigation indicated that the ion strength of solutions almost had no effect to the adsorption of Cu^2＋.As a new and effective adsorbent,the practical application of P-CF for the removal of heavy metal from waste water can be expected.