均匀设计法在寻找汉氏菱形藻对钯吸附最佳条件中的应用  

Application of Uniform Design in Adsorption of Pd^(2+) Ion by Nitzschia hantzschiana Rabh.

作　　者：赵逸云[1] 袁冬梅[1] 王若南[2] 鲍慈光[1] 

机构地区：[1]云南大学应用化学系,昆明650091 [2]云南大学生物学系,昆明650091

出　　处：《应用化学》2003年第11期1105-1107,共3页Chinese Journal of Applied Chemistry

基　　金：云南省自然科学基金项目 ( 2 0 0 0B0 0 0 5M )

摘　　要：Studies on the adsorption of Pd 2+ ion by Nitzschia hantzschiana Rabh., a diatom were carried out. Uniform design was used to arrange the experiment. The growth period of diatom, adsorption time, concentration of Pd 2+ and pH were found to have positive effects on the adsorption amount of Pd 2+ on diatom. The optimum conditions are: the growth period of diatom 12 days, adsorption time=6 h, \=0.01 g/L and \ =0.16 mol/L. EPMA analysis showed that the diameter of the reduced adsorbed Pd was about 1 μm. A mathematical model was found to describe experimental data, that the adsorption fits to Freundlich equation, Q=70.2\ 0.76. The adsorption amount of Pd 2+ on diatom increased logarithmically with the increase of Pd 2+ concentration.Studies on the adsorption of Pd 2+ ion by Nitzschia hantzschiana Rabh., a diatom were carried out. Uniform design was used to arrange the experiment. The growth period of diatom, adsorption time, concentration of Pd 2+ and pH were found to have positive effects on the adsorption amount of Pd 2+ on diatom. The optimum conditions are: the growth period of diatom 12 days, adsorption time=6 h, \=0.01 g/L and \ =0.16 mol/L. EPMA analysis showed that the diameter of the reduced adsorbed Pd was about 1 μm. A mathematical model was found to describe experimental data, that the adsorption fits to Freundlich equation, Q=70.2\ 0.76. The adsorption amount of Pd 2+ on diatom increased logarithmically with the increase of Pd 2+ concentration.

关 键 词：汉氏菱形藻 钯 吸附 均匀设计 

分 类 号：O614.122[理学—无机化学] Q949.27[理学—化学]