Studies on adsorption/desorption of nitrobenzene and humic acid onto/from activated carbon

被引：66

作者：

Rauthula, Megha Syam ^{[1
]}

Srivastava, Vimal Chandra ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Roorkee 247667, Uttar Pradesh, India

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 168卷 / 01期

关键词：

Activated carbon; Nitrobenzene; Humic acid; Desorption; Kinetics; AQUEOUS-SOLUTIONS; ADSORPTION; REMOVAL; SORPTION; WATER; IONS;

D O I：

10.1016/j.cej.2010.12.026

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper reports results of the studies on adsorption of nitrobenzene (NB) and humic acid (HA) from aqueous solution onto activated carbon commercial (ACC) grade. Characterization of ACC showed its meso-porous nature. Fourier transform infra-red (FTIR) spectra of the ACC indicated presence of various types of functional groups on its surface. Thermo-gravimetric analysis exhibited the thermal stability of the ACC up to 300 degrees C. The adsorption kinetics of NB and HA onto ACC could be represented by pseudo-second-order kinetic model. The adsorption processes could be well described by a two-stage diffusion model. Thermal regeneration showed that ACC could be used for five desorption-adsorption cycles with good efficiency for NB and HA in each cycle. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：35 / 43

页数：9

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