物理化学学报2011，Vol.27Issue(9)：2222-2226,5.
Se(Ⅳ)在北山花岗岩上的吸附
Adsorption of Se(Ⅳ) onto Beishan Granite
摘要
Abstract
The adsorption of Se(IV) onto crushed Beishan granite (BS03, 600 m) was studied by a batch experimental method. The results showed that the distribution coefficient (K,) remained almost constant in the pH range of 3-7 and decreased at pH>7. The adsorption of Se(IV) did not vary with ionic strength. The presence of Ca2+ (4.10x 10-3 mol ? L-1) and SO42- (3.17x10-6 mol ? L-1) had no effect on Se(IV) adsorption. Moreover, we found that the adsorption of Se(IV) (1.46x 10"5 mol ? L-1) and Eu(lll) (3.33x 10-6 mol ? L-1) on Beishan granite had no effect on each other in the ternary adsorption system consisting of Se(IV)/Eu(lll)/ granite. The adsorption of Se(IV) onto Beishan granite was quantitatively interpreted by considering the two surface complexation reactions of HseO3- to form sSHSeO3 and =SSeO3- on the =SOH general adsorption sites.关键词
北山花岗岩/吸附/Se(Ⅳ)/表面配位模型Key words
Beishan granite/ Adsorption/ Selenium(IV)/ Surface complexation model分类
化学化工引用本文复制引用
郭治军,陈宗元,吴王锁,刘春立,陈涛,田文宇,黎春..Se(Ⅳ)在北山花岗岩上的吸附[J].物理化学学报,2011,27(9):2222-2226,5.基金项目
国家自然科学基金(10775008,11075006,91026010,20971061),教育部博士点基金(20060001032),国防科工委军工遗留专项基金(科工计[2007]840),中央高校基本科研业务费专项资金和北京大学测试基金(第16-18期)资助项目 （10775008,11075006,91026010,20971061）
