Performance of activated carbon derived from Cymbopogon winterianus distillation waste for scavenging of aqueous toxic anionic dye Congo red: Comparison with commercial activated carbon

被引：20

作者：

Saha, Ajoy ^{[1
]}

Basak, Biraj Bandhu ^{[1
]}

Ponnuchamy, Manivel ^{[1
]}

机构：

[1] ICAR Directorate Med & Aromat Plants Res, Anand, Gujarat, India

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 11期

关键词：

Distillation waste; activated carbon; Congo red; sorption modeling; waste water treatment; ADSORPTIVE REMOVAL; METHYLENE-BLUE; WATER; SHELL; EQUILIBRIUM; DECOLORIZATION; BIOSORPTION; ADSORBENT; KINETICS; ISOTHERM;

D O I：

10.1080/01496395.2019.1620277

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Activated carbon derived from distillation waste of java citronella (Cymbopogon winterianus) by phosphoric acid activation along with commercial activated carbon was evaluated for their scavenging potential toward toxic anionic dye Congo red. Prepared activated carbon was characterized with Fourier transformation infrared spectroscopy, scanning electron microscope, and points zero charge (pHzp). Commercial activated carbon scavenged higher quantity of dye than prepared activated carbon; however, dye uptake rate was faster onto latter. Adsorption behavior is best represented by Freundlich equilibrium and pseudo-second-order kinetic model. Thermodynamics parameters indicate the exothermic nature of reaction. Desorption study allows the superior recycle performance of prepared activated carbon.

引用

页码：1970 / 1983

页数：14

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