The synthesis of novel thiol/amino bifunctionalized SBA-15 and application on the Cr(VI) absorption

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Yang, Y.^1 ; Wang, D.^1 ; Yang, J.X.^1

College of Materials and Chemical Engineering, Hainan University, HaiKou

570228, China^1

关键词: Absorption behaviors;    Adsorption capacities;    Adsorption equilibria;    Adsorption kinetics;    Adsorption mechanism;    Adsorption performance;    Adsorption thermodynamics;    Optimum conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012074/pdf
DOI  :  10.1088/1755-1315/82/1/012074

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Novel amino/thiol organic groups modified SBA-15 materials were successfully prepared by a simple co-condensation approach. The synthesize mesoporous materials were characterized by FT-IR, SAXRD, N2adsorption and elemental analysis (EA). The absorption behavior of Cr (VI) in the samples has been investigated. The experiments revealed that the adsorption amount of Cr (VI) was decided by thiol groups, but the adsorption equilibrium time was mainly effected by amino groups. The 15% NH2+20%SH sample had the best adsorption performance. Its maximum adsorption capacity can be up to 49.29 mg/g at the optimum conditions. The research of adsorption mechanism including adsorption kinetics and adsorption thermodynamics was also presented.