文章基本信息

标题：Biosorption potentials of acid modified Saccharum bengalense for removal of methyl violet from aqueous solutions
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作者：Muhammad Din ; Kiran Ijaz ; Khalida Naseem 等
期刊名称：Chemical Industry and Chemical Engineering Quarterly
印刷版ISSN：1451-9372
出版年度：2017
卷号：23
期号：3
页码：399-409
DOI：10.2298/CICEQ151217054D
出版社：Association of the Chemical Engineers
摘要：In the present work, Saccharum bengalense (SB) was treated with sulfuric acid to enhance its efficiency. Methyl violet (MV), a cationic dye, was removed from aqueous medium using acid modified S. bengalense (A-SB). Different parameters like adsorbent dosage, stirring speed, temperature, contact time and effect of initial concentration of dye on rate of adsorption of dye from aqueous medium was studied. Experimental data obtained from adsorption of MV was analyzed by applying pseudo first order, pseudo second order and intra-particle diffusion models and it was found that the data best follows the pseudosecond order kinetics. Thermodynamic parameters indicate that adsorption reaction was spontaneous, feasible and endothermic in nature. Different adsorption isotherm models, like Langmuir, Freundlich, Dubinin-Radushkevich (D-R) and Temkin, were used to study the mechanism of adsorption process and experimental data was well fitted by the Langmuir adsorption isotherm.
关键词：biosorption; Saccharum bengalense; kinetics; thermosdynamics; dye.