Volume 11, Issue 2 (6-2015)
HSR 2015, 11(2): 382-397 |
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Nourmoradi H A, Noorimotlagh Z. Investigation on the Efficacy of Activated Carbon Modified with Zinc Oxide Nanoparticles to Remove Methylene Blue Dye from Synthetic Wastewater: Kinetic and Isotherm Study. HSR 2015; 11 (2) :382-397
URL: http://hsr.mui.ac.ir/article-1-771-en.html
URL: http://hsr.mui.ac.ir/article-1-771-en.html
1- Assistant Professor of Environmental Health Engineering, School of Health, Ilam University of Medical Sciences, Ilam, Iran
2- PhD Student In Nanotechnology, Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2- PhD Student In Nanotechnology, Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Abstract: (990 Views)
Background: Effluents containing synthetic dyes are hazardous to ecological systems and public health. Adsorption process is one of treatment methods that has been attracted much attention in recent years. The purpose of this study was to survey the feasibility of using zinc oxide (ZnO) nanoparticles stabilized on activated carbon for methylene blue dye adsorption from synthetic wastewater.Methods: The study was conducted in a batch system. Stabilization of the nano particles on the adsorbent, in order to increase the sorption properties, was carried out by thermal procedure. The effects of various parameters on the adsorption process including the nano particles loading rate, pH, contact time, the dye concentration and adsorbent dose were studied.The reaction kinetics and adsorption isotherm were also studied.Findings: The sorption capacity of the dye by the modified activated carbon (with dye concentration= 50 mg/l, adsorbent content=0.3 g/l and contact time= 120 min) at various loadings of the nano particles (0.01, 0.1 and 0.5 g per gram of the adsorbent) were 16.6, 16.45 and 14.52 mg/g, respectively. The sorption capacity of the modified activated carbon (16.6 mg/g) was higher than the raw (non-modified) sorbent (6.47 mg/g).Conclusion: The study showed that activated carbon modified by ZnO nanoparticles can be used as an effective method to remove Methylene blue dye from aqueous solutions.Key Words: Adsorption, Activated Carbon, ZnO Nanoparticles, Methylene blue, Wastewater
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2015/06/15 | Published: 2015/06/15
Received: 2020/07/16 | Accepted: 2015/06/15 | Published: 2015/06/15
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