Investigation of dye adsorption onto activated carbon from the shells of Macore fruit

被引：121

作者：

Aboua, Kouassi Narcisse ^{[1
]}

Yobouet, Yao Augustin ^{[1
]}

Yao, Kouassi Benjamin ^{[1
]}

Gone, Droh Lancine ^{[2
]}

Trokourey, Albert ^{[3
]}

机构：

[1] Inst Natl Polytech Felix Houphouet Boigny Yamouss, Lab Proc Ind Synth Environm & Energies Nouvelles, Yamoussoukro, Cote Ivoire

[2] Univ Nangui Abrogoua, UFR SGE, Lab Geosci & Environm, Abidjan 02, Cote Ivoire

[3] Univ Felix Houphouet Boigny Cocody, Chim Phys Lab, Abidjan 22, Cote Ivoire

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2015年 / 156卷

关键词：

Activated carbon; Dye; Adsorption; Kinetics; Isotherms; Thermodynamics; AQUEOUS-SOLUTIONS; WASTE-WATER; REMOVAL; EFFLUENT; CAPACITY; KINETICS; SORPTION; IONS;

D O I：

10.1016/j.jenvman.2015.03.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The activated carbon obtained from the shells of Macore fruit was used as an adsorbent for the removal of dyes such as methylene blue (MB) and methyl orange (MO) from synthetic contaminated aqueous solutions. It holds that the adsorption is more favourable at acidic pH, with an optimum adsorption at pH = 2. At this pH, the adsorption rate is more than 98% for the two dyes. The sorption capacity was enhanced by increasing the amount of activated carbon. Above room temperature, the adsorption rates remain constant at a value of approximately 99%. The study of the adsorption kinetics indicates that the adsorption on the studied dyes follows second-order kinetics. The isotherm adsorption data were found to be described by both Langmuir and Freundlich. In addition, the thermodynamic studies revealed that the adsorption process is a favourable, endothermic and spontaneous phenomenon. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：10 / 14

页数：5

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