Chemical and thermal activation of clay sample for improvement adsorption capacity of methylene blue

In this study, the removal of methylene blue (MB) by both raw and modified clay as an abundant, cost-effective was investigated. The modification of the raw clay was done by calcination, acid treatment, and again second calcination processes. In addition, the effects of calcination temperature and a...

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Bibliographic Details
Published inInternational journal of environmental analytical chemistry Vol. 103; no. 16; pp. 4503 - 4514
Main Authors Teğin, İbrahim, Saka, Cafer
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 18.12.2023
Taylor & Francis LLC
Subjects
acid-base treatment
Adsorption
Analytical methods
calcination
Clay
Electron microscopy
Infrared analysis
Infrared spectroscopy
Methylene blue
Roasting
Scanning electron microscopy
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Summary:In this study, the removal of methylene blue (MB) by both raw and modified clay as an abundant, cost-effective was investigated. The modification of the raw clay was done by calcination, acid treatment, and again second calcination processes. In addition, the effects of calcination temperature and acid/base concentration on the adsorption capacity of clay were investigated. The characterisation of clay was performed by scanning electron microscopy (SEM) and Fourier transformed infrared spectroscopy (FTIR) analyzes. Langmuir and Freundlich isotherm models were used. The modified clay provided significant improvements in adsorption capacity compared to the raw clay.
ISSN:0306-7319
1029-0397
DOI:10.1080/03067319.2021.1928105