文章基本信息

标题：Utilization of Sugarcane Baggase, an Agricultural Waste to Remove Malachite Green Dye from Aqueous Solutions,
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作者：Sharma N. ; Nandi B.K.
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2013
卷号：4
期号：6
页码：1052-1065
出版社：University of Mohammed Premier Oujda
摘要：In this work, the adsorption potential of agricultural waste material sugarcane baggase to remove malachite green dye from aqueous solution was investigated. The adsorbent was characterized by BET surface area measurement and FTIR analysis. Various parameters such as initial dye concentration, contact time, adsorbent dose and temperature were studied to observe their effects on the dye adsorption process. At optimum values of the above mentioned parameters, more than 95% removal efficiency was obtained within 120 min at adsorbent dose of 1 g/L for initial dye concentration of 50 mg/L. The adsorption of dye was found to follow a pseudo-second-order rate equation. Various thermodynamic parameters (ΔGo, ΔHo, ΔSo) were also estimated. Adsorption mechanisms were investigated with intra-particle diffusion model, Furusawa and Smith model and Boyd's model to get deep insight of adsorption process. Langmuir isotherm model was fitted the best for the adsorption system with an adsorption capacity of 190 mg/g of adsorbent. The present adsorbent may be considered as an alternative adsorbent for the better performance of the malachite green dye removal from its aqueous medium
关键词：Biosorption; Malachite green; Sugarcane baggase; Agricultural waste; Wastewater