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Artocarpus integer peel as a highly effective low-cost adsorbent for methylene blue removal: Kinetics, isotherm, thermodynamic and pelletized studies

Rosalyza, Hasan and Nurul Adina, Mohamed Razifuddin and Nurfatehah Wahyuny, Che Jusoh and Rohayu, Jusoh and Herma Dina, Setiabudi (2018) Artocarpus integer peel as a highly effective low-cost adsorbent for methylene blue removal: Kinetics, isotherm, thermodynamic and pelletized studies. Malaysian Journal of Fundamental and Applied Sciences, 14 (1). pp. 25-31. ISSN 2289-5981

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Abstract

Recently, there is a growing interest in identifying low-cost alternative adsorbents which have reasonable adsorption efficiency for dye removal. In this study, agricultural waste, Artocarpus Integer peel (AI-Peel) was used as the adsorbent to remove methylene blue (MB) from aqueous solution. The batch adsorption process was conducted to evaluate the effect of contact time (1 – 40 min), adsorbent dosage (0.25 – 4.0 g L-1), pH (2 – 8), initial dye concentration (100 – 500 mg L-1) and temperature (30 – 50 oC). The experimental data followed well pseudo-second-order kinetic model and Langmuir isotherm (Type 2) with maximum adsorption capacity of 396.825 mg g-1. The analysis of thermodynamic studies indicated that the adsorption process was exothermic, controlled by a chemisorption process, feasible and spontaneous in nature with decrease in degree of spontaneity at higher temperature. The characterization results revealed that the functional groups of AI-Peel play an important role in the adsorption of MB onto AI-Peel. The study of pelletized and reusability of AI-Peel indicated the great potential of pelletized AI-Peel as low-cost adsorbent for efficient removal of MB from aqueous solution. This study successfully discovers a new highly effective low-cost adsorbent for MB removal.

Item Type: Article
Uncontrolled Keywords: Low-cost adsorbent, agricultural waste, Artocarpus Integer peel, pelletized adsorbent, methylene blue
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Depositing User: Noorul Farina Arifin
Date Deposited: 05 Jun 2018 05:28
Last Modified: 12 Jul 2018 08:05
URI: http://umpir.ump.edu.my/id/eprint/21335
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