PREPARATION OF ACTIVATED CARBON FROM MUSTARD SEED AND ITS ADSORPTION EFFICIENCY TOWARDS DYE AND ACID

Q3 Social Sciences

Journal of Urban and Environmental Engineering Pub Date : 2018-12-31 DOI:10.4090/JUEE.2018.V12N2.266276

Deepa Basrur, J. Bhat

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引用次数: 1

Abstract

In this work, activated carbon obtained from agro- based material, mustard seeds were used as an adsorbent for the adsorption study of crystal violet (CV) and citric acid (CA). The characterization of synthesised carbon material was performed by various techniques, such as FTIR, SEM, TGA and XRD. FTIR absorption bands of activated carbon exhibited the presence of functional groups on the surface of activated carbon and SEM images showed the impregnation of the pores on the surface of the synthesised activated carbon. Adsorption experiments were conducted to study its capacity as an adsorbent, under various conditions such as concentration, agitation time and temperature. The data acquired from concentration variation found to fit well with Freundlich isotherm. It was shown that the adsorption of dye and acid were better described by the second order kinetic model. Positive values of ΔHo indicated that the process is endothermic and negative values of ΔGo confirmed feasibility of the system. The results showed that microwave activated carbon was more effective for the removal of crystal violet.

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芥菜籽活性炭的制备及其对染料和酸的吸附性能

以菜籽为原料制备的活性炭为吸附剂，对结晶紫(CV)和柠檬酸(CA)的吸附进行了研究。通过FTIR、SEM、TGA和XRD等技术对合成的碳材料进行了表征。活性炭的FTIR吸收光谱显示活性炭表面存在官能团，SEM图像显示合成的活性炭表面孔隙浸渍。通过吸附实验研究了其在不同浓度、搅拌时间和温度条件下的吸附剂性能。由浓度变化所得的数据与Freundlich等温线拟合较好。结果表明，二级动力学模型较好地描述了染料和酸的吸附。ΔHo的正值表明该过程是吸热的，ΔGo的负值证实了该系统的可行性。结果表明，微波活性炭对结晶紫的去除效果较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Urban and Environmental Engineering Social Sciences-Urban Studies

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Journal of Urban and Environmental Engineering (JUEE) provides a forum for original papers and for the exchange of information and views on significant developments in urban and environmental engineering worldwide. The scope of the journal includes: (a) Water Resources and Waste Management [...] (b) Constructions and Environment[...] (c) Urban Design[...] (d) Transportation Engineering[...] The Editors welcome original papers, scientific notes and discussions, in English, in those and related topics. All papers submitted to the Journal are peer reviewed by an international panel of Associate Editors and other experts. Authors are encouraged to suggest potential referees with their submission. Authors will have to confirm that the work, or any part of it, has not been published before and is not presently being considered for publication elsewhere.