Adsorption of malachite green from aqueous solutions onto ordered mesoporous carbons

被引：71

作者：

Tian, Yong ^{[1
]}

Liu, Ping ^{[2
]}

Wang, Xiufang ^{[1
]}

Lin, Hansen ^{[1
]}

机构：

[1] Guangdong Pharmaceut Univ, Coll Pharm, Guangzhou 510006, Guangdong, Peoples R China

[2] Henan Inst Sci & Technol, Sch Chem & Chem Engn, Xinxiang 453003, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 171卷 / 03期

基金：

美国国家科学基金会;

关键词：

Ordered mesoporous carbon; Malachite green; Adsorption; Thermodynamic; LOW-COST ADSORBENTS; DE-OILED SOYA; ACTIVATED CARBON; WASTE MATERIALS; BOTTOM ASH; AGRICULTURAL WASTE; REMOVAL; KINETICS; RECOVERY; NANOPARTICLES;

D O I：

10.1016/j.cej.2011.05.040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The carbon materials with well-ordered mesoporous tubular structure were synthesized, which were confirmed by transmission electronmicroscopy (TEM), Raman spectrum, small angle X-ray diffraction (XRD), and N-2 adsorption/desorption analysis. Moreover, by adjusting the ratio of furfuryl alcohol (FA) and trimethylbenzene (TMB), the structural parameters of the ordered mesoporous carbons (OMCs) could be facilely tuned. The materials synthesized were applied as a host in adsorption MG molecules. The carbon materials after the adsorption of Malachite green (MG) were also characterized by XRD and N-2 adsorption/desorption analysis. The results showed that the adsorption of MG had not greatly changed the basic ordered pore structure of the OMCs. The mixed 1,2-order equation(MOE) was suitable for the dynamic adsorption of MG on OMCs. Thermodynamic parameters of adsorption such as free energy change and enthalpy change were obtained from the equilibrium constants at different temperatures. The thermodynamic data indicated that MG adsorption onto OMCs was a spontaneous and exothermic physical process. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：1263 / 1269

页数：7

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