Abstract
Background: In this study, cysteine-coated magnetite nanoparticles (F
Methods: The effect of various experimental parameters on the dye removal efficiency was studied using Taguchi orthogonal array design (L16 array). Under the optimum conditions (pH = 2, stirring time = 30 min, adsorbent amount = 0.1 g and without salt addition), more than 92% of carmoisine was removed from the aqueous solutions.
Results: The kinetic studies showed rapid adsorption dynamics by a pseudo second-order kinetic model, confirming that diffusion controls the adsorption process. Dye adsorption equilibrium data were fitted well to the Freundlich isotherm, and the synthesized adsorbent showed high removal efficiency.
Conclusion: The obtained results showed that the synthesized MNPs act as a reusable adsorbent for carmoisine removal with an easy procedure.
[http://dx.doi.org/10.1016/j.saa.2008.11.017] [PMID: 19124271]
[http://dx.doi.org/10.37358/RC.19.5.7170]
[http://dx.doi.org/10.1002/fsn3.906]
[http://dx.doi.org/10.1177/0115426502017003169] [PMID: 16214982]
[http://dx.doi.org/10.1016/j.apsusc.2012.03.099]
[http://dx.doi.org/10.1016/j.matlet.2014.03.051]
[http://dx.doi.org/10.1016/j.bios.2013.04.034] [PMID: 23708810]
[http://dx.doi.org/10.1002/aoc.5046]
[http://dx.doi.org/10.1007/s12633-019-00288-1]
[PMID: 33030127]
[http://dx.doi.org/10.1007/s13738-018-1506-9]
[http://dx.doi.org/10.1016/j.arabjc.2014.02.019]
[http://dx.doi.org/10.1016/j.apsusc.2006.05.023]
[http://dx.doi.org/10.1016/j.microc.2009.10.011]
[http://dx.doi.org/10.1007/s10934-016-0245-5]
[http://dx.doi.org/10.1016/j.colsurfa.2022.128709]
[PMID: 30338734]
[http://dx.doi.org/10.1007/s12633-018-9997-7]
[http://dx.doi.org/10.1016/j.clay.2008.03.015]
[http://dx.doi.org/10.1016/j.biortech.2006.06.015] [PMID: 16919938]
[http://dx.doi.org/10.1016/j.jhazmat.2005.10.016] [PMID: 16297540]