Adsorption of anionic and cationic dyes on ferromagnetic ordered mesoporous carbon from aqueous solution: Equilibrium, thermodynamic and kinetics

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	Adsorption of anionic and cationic dyes on ferromagnetic ordered mesoporous carbon from aqueous solution: Equilibrium, thermodynamic and kinetics
	Peng, Xiaoming ; Huang, Dengpo ; Odoom-Wubah, Tareque ; Fu, Dafang ; Huang, Jiale ; Qin, Qingdong ; Huang JL(黄加乐)
刊名	http://dx.doi.org/10.1016/j.jcis.2014.05.035
	2014
关键词	Aromatic compounds Carbon Dyeing Dyes Kinetics Mesoporous materials Nanoparticles
英文摘要	Ordered mesoporous carbon (Fe-CMK-3) with iron magnetic nanoparticles was prepared by a casting process via SBA-15 silica as template and anthracene as carbon source, was used as a magnetic adsorbent for the removal of anionic dye Orange II (O II) and cationic dye methylene blue (MB) from aqueous solution. TEM and magnetometer images showed that the iron magnetic nanoparticles were successfully embedded in the interior of the mesoporous carbon. The effect of various process parameters such as temperature (25-45°C), initial concentration (100-500mgL-1) and pH (2-12) were performed. Equilibrium adsorption isotherms and kinetics were also studied. The equilibrium experimental data were analyzed by the Langmuir, Freundlich, Temkin and Redlich-Peterson model. The equilibrium data for two dyes adsorption was fitted to the Langmuir, and the maximum monolayer adsorption capacity for O II and MB dyes were 269 and 316mgg-1, respectively. Pseudo-first-order and pseudo-second-order kinetic and intraparticle diffusion model were used to evaluate the adsorption kinetic data. The kinetic data of two dyes could be better described by the pseudo second-order model. Thermodynamic data of the adsorption process were also obtained. It was found that the adsorption process of the two dyes were spontaneous and exothermic. ? 2014 Elsevier Inc.
语种	英语
出版者	Academic Press Inc.
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89849]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Peng, Xiaoming,Huang, Dengpo,Odoom-Wubah, Tareque,et al. Adsorption of anionic and cationic dyes on ferromagnetic ordered mesoporous carbon from aqueous solution: Equilibrium, thermodynamic and kinetics[J]. http://dx.doi.org/10.1016/j.jcis.2014.05.035,2014.
APA	Peng, Xiaoming.,Huang, Dengpo.,Odoom-Wubah, Tareque.,Fu, Dafang.,Huang, Jiale.,...&黄加乐.(2014).Adsorption of anionic and cationic dyes on ferromagnetic ordered mesoporous carbon from aqueous solution: Equilibrium, thermodynamic and kinetics.http://dx.doi.org/10.1016/j.jcis.2014.05.035.
MLA	Peng, Xiaoming,et al."Adsorption of anionic and cationic dyes on ferromagnetic ordered mesoporous carbon from aqueous solution: Equilibrium, thermodynamic and kinetics".http://dx.doi.org/10.1016/j.jcis.2014.05.035 (2014).