Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

Adsorption of Congo Red Dye from Aqueous Solutions by Montmorillonite as a Low-cost Adsorbent

(2018) Adsorption of Congo Red Dye from Aqueous Solutions by Montmorillonite as a Low-cost Adsorbent. International Journal of Chemical Reactor Engineering.

Full text not available from this repository.

Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

In this study, the sorption of Congo red (CR), as a toxic dye, from aqueous media was investigated using montmorillonite (MMT) as a low-cost adsorbent. The influence of several factors such as contact time, pH, adsorbent dosage, dye content, and ionic strength was investigated on the dye removal. MMT was characterized by Fourier transformed infrared (FTIR) spectroscopy and X-ray diffractometer (XRD). Different kinetic and isotherm models including pseudo-first and pseudo-second order kinetic and Langmuir and Freundlich were applied to analyze experimental data, respectively. The results showed that the data were well fitted by pseudo-second-order kinetic and Freundlich isotherm models. The optimum conditions for the sorption of CR were achieved over 40min and at pH=2. According to the results of the present study, MMT can be used as a low-cost, eco-friendly and effective option for the adsorption of CR from aqueous solutions. © 2018 Walter de Gruyter GmbH, Berlin/Boston.

Item Type: Article
Keywords: Adsorption; Azo dyes; Clay minerals; Costs; Fourier transform infrared spectroscopy; Ionic strength; Isotherms; Kinetics; Solutions, Adsorbent dosage; Congo red; Freundlich isotherm model; Low-cost adsorbents; Montmorillonite (MMT); Optimum conditions; Pseudo second order kinetics; X ray diffractometers, Dyes
Journal or Publication Title: International Journal of Chemical Reactor Engineering
Volume: 16
Number: 1
Publisher: Walter de Gruyter GmbH
Identification Number: 10.1515/ijcre-2016-0203
ISSN: 15426580
Depositing User: مهندس جمال محمودپور
URI: http://eprints.muk.ac.ir/id/eprint/1139

Actions (login required)

View Item View Item