Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 513, Issue -, Pages 259-266Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2016.10.052
Keywords
Adsorption isotherm; Rhodamine B; Activated carbon; Gelatin; Kinetics; Thermodynamics
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Funding
- Strategic Scholarships Fellowships Frontier Research Networks (Specific for Southern Region), Thailand
- Graduate School, Prince of Songkla University, Thailand
- Department of Chemistry, Faculty of Science, Prince of Songkla University Hat Yai campus, Thailand
- Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani campus, Thailand
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The Gelatin/Activated Carbon Composite (GE/AC) adsorbent in bead form was prepared and used to adsorb Rhodamine B from an aqueous solution. Gelatin and activated carbon were combined to an eco-friendly, non-toxic, non-carcinogenic, biocompatible and inexpensive biosorbent. Dependence of sorption performance on key factors, such as contact time, adsorbent dosage, pH, and temperature, were experimentally examined. The effects of initial Rhodamine B concentration were also evaluated, and the response followed Langmuir adsorption isotherm, with the maximum adsorption capacity of 256.41 mg g(-1) at pH 4 and 30 degrees C. The results indicate that the GE/AC adsorbent has potential to serve in wastewater treatment applications, especially in batch removal of Rhodamine B from an aqueous solution. (C) 2016 Elsevier B.V. All rights reserved.
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