中文摘要：

采用原位复合法制备了壳聚糖/羟基磷灰石复合吸附剂（CS/HA）,研究了该吸附剂对水溶液中Zn（Ⅱ）的吸附热力学及动力学.动力学研究表明：在实验条件下吸附量与时间的关系符合伪二级动力学方程,求出了吸附活化能.热力学研究表明：在实验条件下,CS/HA对Zn（Ⅱ）的吸附符合Langmuir等温吸附方程,得到了△Hθ,△Sθ,△Gθ等一些热力学参数.

英文摘要：

The chitosan/hydroxyapatite composite adsorbent （CS/HA） was prepared by in situ com- posite method. The adsorption of Zn（ Ⅱ ） onto CS/HA in aqueous solution was studied. Kinetics and ther- modynamics of the adsorption of Zn（ Ⅱ ） onto the adsorbent in aqueous solution were investigated. The ad- sorption kinetics of Zn（ Ⅱ ） on the CS/HA was found to follow the pseudo-second-order kinetic model, and the apparent adsorption activation energy was measured. Thermodynamic study indicated that the adsorp- tion of Zn（ Ⅱ ） onto CS/HA conformed to Langmuir isotherm adsorption equation, and the adsorption thermodynamic parameters such as △Hθ,△Sθ,△Gθ were obtained.