alexa Abstract | Application of Cellulosic Biomass for Removal of Cationic Dye Rhodamine 6G from Aqueous Solutions
E-ISSN: 2252-5211

International Journal of Waste Resources
Open Access

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Research Article Open Access

Abstract

This study investigated the adsorption efficiency of treated newspaper pulp, Azollafiliculoides and date fibers as low-price and readily-available adsorbents for removal of the cationic dye Rhodamine 6G from aqueous solutions. The parameters influencing adsorption (aqueous phase pH, ionic strength, amount of adsorbent, adsorbent-water mixing time) were assessed and optimized. It was found that 0.3 g of each adsorbent removed 75%-95% of the dye (initial concentration 10 mg/L) from 45 mL of water at pH >2 after 30 min at 25°C. Treated newspaper pulp showed better adsorbent characteristics for removal of Rhodamine 6G than the other adsorbents. The kinetics of adsorption can be suitably described using a pseudo second-order model. The Langmuir, Temkin, Freundlich and Dubinin-Radushkevich models were tested to describe the equilibrium data of the adsorption. The Langmuir model successfully described the experimental data for the adsorption of Rhodamine 6G onto Azollafiliculoides

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Author(s): Alizadeh A, Parizanganeh A, Yaftian MR and Zamani A

Keywords

Azollafiliculoides, Date fiber, Cellousic adsorbent, Newspaper pulp, Rhodamine 6G, Biomass and Biological Waste Treatment, Chemical Waste Management, E-waste, Fly Ash

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