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dc.contributor.authorSupawitch Hoijangen_US
dc.contributor.authorSunanta Wangkarnen_US
dc.contributor.authorPimchanok Ieamviteevanichen_US
dc.contributor.authorSupree Pinitsoontornen_US
dc.contributor.authorSupon Anantaen_US
dc.contributor.authorT. Randall Leeen_US
dc.contributor.authorLaongnuan Srisombaten_US
dc.description.abstract© 2020 Elsevier B.V. This paper demonstrates the adsorption capability of silica-coated magnesium ferrite nanoparticles (MgFe2O4@SiO2 NPs) for the selective adsorption of methylene blue (MB). The MgFe2O4@SiO2 NPs were generated from MgFe2O4 NPs by coating with a thin silica shell. After fully characterizing the MgFe2O4@SiO2 NPs, selective adsorption studies were carefully investigated by using three types of representative dyes: cationic (MB, rhodamine B, and malachite green), anionic (methyl orange and Congo red), and neutral (neutral red) dyes. Efficient removal of MB by the MgFe2O4@SiO2 adsorbents was observed for both individual and mixed dye systems, demonstrating excellent selectivity for MB. To optimize the adsorption capacity for MB removal, several parameters (i.e., initial solution pH, initial dye concentration, and contact time) were carefully investigated. In all cases, the magnetoresponsive adsorbents were easily separated from the solution by using an external magnet. Regeneration of the MgFe2O4@SiO2 NPs for MB removal was also performed to investigate the stability and reusability of the adsorbent. The recycling tests revealed that the MB removal efficiencies remained high after ten adsorption-desorption cycles. On the whole, the MgFe2O4@SiO2 NPs were found to be efficient, selective, and reusable adsorbents for MB removal.en_US
dc.subjectChemical Engineeringen_US
dc.subjectPhysics and Astronomyen_US
dc.titleSilica-coated magnesium ferrite nanoadsorbent for selective removal of methylene blueen_US
article.title.sourcetitleColloids and Surfaces A: Physicochemical and Engineering Aspectsen_US
article.volume606en_US Kaen Universityen_US of Houstonen_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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