Chlorinated Phenols Sorption Performance by Macadamia Activated Carbon and Grafted Macadamia Activated Carbon: Characterization, Kinetics, and Thermodynamic studies
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Published:2019-10-09
Issue:5
Volume:35
Page:1469-1479
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ISSN:2231-5039
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Container-title:Oriental Journal Of Chemistry
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language:en
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Short-container-title:Orient. J. Chem
Author:
Machedi Sechaba1, Ejidike Ikechukwu P.1ORCID, Mtunzi Fanyana M.2, Pakade Vusumzi E.1, Klink Michael J.1
Affiliation:
1. Department of Chemistry, Faculty of Applied and Computer Sciences, Vaal University of Technology, Vanderbijlpark, 1911, South Africa. 2. Institute of Chemical and Biotechnology, Vaal University of Technology Southern Gauteng Science and Technology Park, Sebokeng, 1983, South Africa
Abstract
Our environment is filled with chemicals that pollute the air, water, soil and food, the need to find solutions to the pollution problem. In this study, owing to the research niches like waste beneficiation, macadamia nutshell activated carbon (MAC) was investigated for its potential usage as an adsorbent for chlorinated phenols: 3-chlorophenol, 2,4,6-Trichlorophenol, 4-chloro-3-methylphenol, 2,4-Dichlorophenol removal, and its activity compared with grafted macadamia nutshell activated carbon (GMAC). The adsorbent was characterized using FTIR, SEM, and TGA. Parameters like pH, temperature, contact time, concentration and adsorbent were examined. The PFO and PSO kinetic models were employed to investigate the experimental data. The PSO displayed the best fitting for the kinetic studies for MAC adsorption. The kinetics studies confirmed the adsorption system by pseudo-second-order kinetics model. The negative values of ΔG confirmed a spontaneous process, thereby, supporting the physisorption mechanisms of interactions between the chlorinated phenols and the adsorbents
Publisher
Oriental Scientific Publishing Company
Subject
Drug Discovery,Environmental Chemistry,Biochemistry,General Chemistry
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