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Organic dye adsorption on activated carbon derived from solid waste


Citation

Ahmad, Ashfaq A. and Idris, Azni and Hameed, Bassim H. (2013) Organic dye adsorption on activated carbon derived from solid waste. Desalination and Water Treatment, 51 (13-15). pp. 2554-2563. ISSN 1944-3994; ESSN: 1944-3986

Abstract / Synopsis

Activated carbon was prepared through a chemical activation of bamboo waste precursor (BMAC) using phosphoric acid as the activating agent at 500°C for 2 h. Batch adsorption studies were carried out for the adsorption of C.I. Reactive Black 5 (RB5) onto the BMAC. The effect of various experimental parameters such as initial dye concentration (50–500 mg/L), contact time (0–32 h), pH (2–12), and temperature (30–50°C) were investigated. Equilibrium data were found to be very well represented by the Freundlich isotherm and a pseudo-second-order model was found to explain the kinetics of RB5 adsorption more effectively. The mechanism of the adsorption process was determined by the intraparticle diffusion model. Thermodynamic parameters such as standard enthalpy (ΔH°), standard entropy (ΔS°), standard free energy (ΔG°), and activation energy were determined. The results indicated that BMAC is a suitable adsorbent material for adsorption of reactive dye from aqueous solutions.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1080/19443994.2012.749019
Publisher: Taylor & Francis
Keywords: Bamboo waste; Activated carbon; C.I. Reactive Black 5; Isotherm; Kinetics
Depositing User: Nabilah Mustapa
Date Deposited: 27 Apr 2015 06:24
Last Modified: 17 Sep 2015 07:22
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/19443994.2012.749019
URI: http://psasir.upm.edu.my/id/eprint/28799
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