Competitive removal of malachite green and Rhodamine-B using Amberlite-XAD-4 impregnated with Aliquat 336: experimental and modelling studies

ABSTRACT

Use of solvent impregnated resin in the separation has emerged as a new area of interest. It is a hybrid process with the characteristics of adsorption, ion-exchange and extraction. Here, Aliquat 336 impregnated Amberlite XAD-4 resin was used to remove Rhodamine-B and malachite green individually and from their mixtures in the aqueous solution. The performance of prepared resin was studied in batch mode to analyze the effect of adsorbent dosage, pH, concentration of dye solution, salt concentration, time, and temperature. Characterization (using FE-SEM, EDS, FTIR, and point of zero charge), regeneration, and cost analysis of the adsorbent were also done.

KEYWORDS:

• Adsorption
• Rhodamine-B
• malachite green
• solvent impregnated resin
• Amberlite XAD-4

Acknowledgments

Dr. Dipaloy Datta is thankful to Science & Engineering Research Board (SERB), a statutory body of the Department of Science & Technology, New Delhi, India for financial support under Early Career Research Award (EC Engineering Sciences), FILE NO. ECR/2016/001297 to carry out the research. Material Research Centre (MRC) of Malaviya National Institute of Technology, Jaipur is acknowledged for the characterization of the samples using FESEM, EDS, and FTIR.

Additional information

Funding

This work was supported by the Science & Engineering Research Board (SERB), a statutory body of the Department of Science & Technology, New Delhi, India for financial support under Early Career Research Award (Engineering Sciences) [grant number ECR/2016/001297].