|
|||||
|
|
Adsorption of U(VI) from aqueous solution by sulfonated ordered mesoporous carbon |
|
| Authors: | Zhi-Bin Zhang Xiao-Feng Yu Xiao-Hong Cao Rong Hua Min Li Yun-Hai Liu |
| Affiliation: | 1. Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China Institute of Technology, Nanchang, 330013, Jiangxi, China 2. State Key Laboratory Breeding Base of Nuclear Resources and Environment (East China Institute of Technology), Ministry of Education, Nanchang, 330013, Jiangxi, China 3. Chemistry, Biological and Materials Sciences Department, East China Institute of Technology, Nanchang, 330013, Jiangxi, China |
| Abstract: | The sulfonated mesoporous carbon (CMK-3-SO3H) prepared by functionalizing mesoporous carbon (CMK-3) via vapor transfer method has been explored for the removal and recovery of uranium from aqueous solutions. The influences of different experimental parameters such as solution pH, initial concentration, contact time and temperature on adsorption were investigated. The results showed that CMK-3-SO3H has the highest uranium sorption capacity at initial pH of 5.0 and contact time of 120 min, and the adsorption process could be better described by the pseudo-second-order model and Langmuir isotherm. Selective adsorption studies showed that the CMK-3-SO3H could selectively remove of U(VI), and the selectivity coefficients of mesoporous carbon in the presence of co-existing ions, Mg(II), Zn(II), Mn(II), Cu(II), Ni(II), Sr(II) and Hg(II) improved after functionalization. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |