Investigation of the effect of EDTA modification on golden yellow removal: optimisation with response surface methodology

ABSTRACT

Physical or chemical processes can enrich surface functional groups of activated carbon. EDTA grafting was applied to the carbon surface using a chemical treatment in this study. In this way, while there was no significant change in the surface area of the carbon, the Golden Yellow (GY) removal performance increased. The changes caused by EDTA grafting on the carbon surface have been revealed using various methods. Environmental conditions affecting the adsorption process were statistically investigated using Central Composite Design (CCD). Different equations were used to determine the stability, capacity, and mechanism of the GY removal with activated carbon and EDTA grafted carbon.

KEYWORDS:

• EDTA modification
• characterisation
• GY adsorption
• central composite design

Authors’ contributions

Canan Samdan: Conceptualization, Validation, Formal analysis, Investigation, Writing, Writing - Review & Editing, Visualization,

İlknur Demiral: Conceptualization, Validation, Formal analysis, Writing, Writing - Review & Editing

Tugce Bozkurt: Conceptualization, Validation, Formal analysis, Writing, Writing - Review & Editing

Ethics approval

All ethical rules have been read and applied as written.

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The study does not contain any information that would require consent from any individual.

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The study is not a case study. It does not contain information that would require an individual’s consent.

Supplementary material

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Disclosure statement

No potential conflict of interest was reported by the author(s).