Adsorption of Ag(Ⅰ) on H₂TiO₃ from aqueous solutions

来源期刊：中国有色金属学报(英文版)2007年第4期

论文作者：柴立元 韦顺文 彭兵 李竹英

文章页码：832 - 832

Key words：silver ions; adsorption; hydrous titania

Abstract: Adsorption of silver ions from aqueous solution onto H₂TiO₃ was studied. Equilibrium experimental studies were performed to determine the adsorption capacity of H₂TiO₃ for silver ion at various pH values. Batch experiments were conducted in the range of pH value 3-7 and silver ions concentration 10-200 mg/L. The results show that the adsorption is strongly dependent on pH value. The equilibrium absorption capacity of H₂TiO₃ increases significantly with the increase of pH value from 3 to 7. The adsorption of silver ion obeys the Langmuir isothermal equation well in the concentration range studied, the adsorption constant is 0.054 7, 0.052 4, 0.088 1 at pH 5, 6 and 7, respectively, and the maximum adsorption capacities are 23.64, 29.76 and 40.82 mg/g.

基金信息：the Key Project of Scientific and Technological Department of Hunan Province, China