Chromium (III) sorption from aqueous solutions using activated carbon prepared from cashew nut shells

被引：0
|
作者：
Tangjuank, S. [1 ]
Insuk, N. [1 ]
Udeye, V. [2 ]
Tontrakoon, J. [3 ]
机构：
[1] Uttaradit Rajabhat Univ, Program Sci, Fac Sci & Technol, Uttaradit 53000, Thailand
[2] Naresuan Univ, Dept Chem, Fac Sci, Phitsanulok 65000, Thailand
[3] Chiang Mai Univ, Dept Phys, Fac Sci, Chiang Mai 50200, Thailand
来源：
INTERNATIONAL JOURNAL OF THE PHYSICAL SCIENCES | 2009年 / 4卷 / 08期
关键词：
Activated carbon; cashew nut shell; trivalent chromium (Cr(III)); adsorption; HEAVY-METAL IONS; REMOVAL; ADSORPTION; EQUILIBRIUM; CR(III);
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Activated carbon prepared from cashew nut shells using potassium hydroxide activation at 850 degrees C in N-2 and CO2 atmosphere was used as an adsorbent for the removal of chromium ions from aqueous solutions. The adsorption of Cr(III) ions on activated carbon was studied. The effect of experimental parameters such as, pH of initial concentration of Cr(III) solutions, contact time, dosage of adsorbent and initial concentration of Cr(III) solutions was investigated. The Freundlich and Langmuir isotherm fitted well to data of Cr(III) adsorption. Cr(III) uptake capacity was 13.93 mg/g which was calculated from the Langmuir isotherm.
引用
收藏
页码：412 / 417
页数：6
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