Adsorption behavior of methylene blue on amine-functionalized ordered mesoporous alumina

作者:Gan Yiqun; Tian Na; Tian Xike*; Ma Longlong; Wang Weiwei; Yang Chao; Zhou Zhaoxin; Wang Yanxin
来源:Journal of Porous Materials, 2015, 22(1): 147-155.
DOI:10.1007/s10934-014-9881-9

摘要

Amine-functionalized ordered mesoporous alumina (NH2-OMA) was synthesized through a facile and reproducible method. Its organic dyes adsorption characteristics, including adsorption isotherms, adsorption kinetics, the stability and reusability of the adsorbents were investigated. This material exhibited strong affinity to methylene blue and extremely high adsorption capacity. The maximum adsorption capacity value reached 657.89 mg g(-1). Adsorption kinetics was best described by the pseudo-second-order model. Equilibrium data were well fitted to the Langmuir isotherm model.