Adsorption of malachite green on micro- and mesoporous rice husk-based active carbon

被引：173

作者：

Guo, YP ^{[1
]}

Yang, SF ^{[1
]}

Fu, WY ^{[1
]}

Qi, JR ^{[1
]}

Li, RZ ^{[1
]}

Wang, ZC ^{[1
]}

Xu, HD ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

来源：

DYES AND PIGMENTS | 2003年 / 56卷 / 03期

关键词：

rice husk; carbon; adsorption; malachite green;

D O I：

10.1016/S0143-7208(02)00160-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The adsorption of malachite green (MG) from aqueous medium by rice husk-based porous carbons (RHCs) were studied. The extent of adsorption was studied as a function of pH, contact time, contact temperature, adsorbate concentration, ion strength and adsorbent with different pore structural. The comparison of adsorption of MG on oxidized carbons and their heat-treated derivatives were studied. The results obtained under various experimental conditions were found to follow the Freundlich adsorption isotherm. The adsorption capacity of carbons activated by NaOH-activation was larger than that of carbons activated by KOH-activation, the adsorption of MG on oxidized carbons was decreased and was enhanced after heat-treatment. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：219 / 229

页数：11

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