Removal of Methylene Blue from aqueous solution by Fe3O4@Ag/SiO2 nanospheres: Synthesis, characterization and adsorption performance

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dc.contributor.authorSaini, J.
dc.contributor.authorGarg, V.K.
dc.contributor.authorGupta, R.K.
dc.date.accessioned2018-07-14T01:19:07Z
dc.date.accessioned2024-08-14T06:40:26Z
dc.date.available2018-07-14T01:19:07Z
dc.date.available2024-08-14T06:40:26Z
dc.date.issued2018
dc.description.abstractIn this study, silver silica coated magnetite (Fe3O4@Ag/SiO2) nanospheres were synthesized employing sonication method and their performance was evaluated as nanoadsorbents for the removal of Methylene Blue in batch mode experiments. The physical characteristics of these nanospheres were studied using XRD, SEM, EDX, TEM, and FTIR techniques. The Fe3O4@Ag/SiO2 nanospheres were capable to remove 99.6% Methylene Blue from aqueous solution at pH 7. A possible mechanism for the adsorption of Methylene Blue onto Fe3O4@Ag/SiO2 has been proposed. The adsorption equilibrium and kinetics were studied for experimental data. The removal process followed Langmuir isotherm with maximum monolayer adsorption capacity of 128.5 mg/g. Experimental kinetic data fitted well to Pseudo-second-order and Intraparticle diffusion models. The values of thermodynamic parameters, viz., ?G0, ?S0 and ?H0 confirmed spontaneous, endothermic and feasible adsorption of Methylene Blue under studied experimental conditions. The Fe3O4@Ag/SiO2 nanospheres were regeneratable and reusable for five successive cycles. ? 2017 Elsevier B.V.en_US
dc.identifier.citationSaini, J., Garg, V. K., & Gupta, R. K. (2018). Removal of Methylene Blue from aqueous solution by Fe<inf>3</inf>O<inf>4</inf>@Ag/SiO<inf>2</inf>nanospheres: Synthesis, characterization and adsorption performance. Journal of Molecular Liquids, 250, 413-422. doi: 10.1016/j.molliq.2017.11.180en_US
dc.identifier.doi10.1016/j.molliq.2017.11.180
dc.identifier.issn1677322
dc.identifier.urihttp://10.2.3.109/handle/32116/1450
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0167732217342058?via%3Dihub
dc.language.isoen_USen_US
dc.publisherElsevier B.V.en_US
dc.subjectAdsorption isothermsen_US
dc.subjectAromatic compoundsen_US
dc.subjectDyesen_US
dc.subjectEnzyme kineticsen_US
dc.subjectIsothermsen_US
dc.subjectKineticsen_US
dc.subjectMagnetiteen_US
dc.subjectNanospheresen_US
dc.subjectScanning electron microscopyen_US
dc.subjectSilicaen_US
dc.subjectSilveren_US
dc.subjectSolutionsen_US
dc.subjectDye removalen_US
dc.subjectEquilibrium adsorption isothermsen_US
dc.subjectExperimental conditionsen_US
dc.subjectIntraparticle diffusion modelsen_US
dc.subjectMethylene Blueen_US
dc.subjectPhysical characteristicsen_US
dc.subjectSilica coateden_US
dc.subjectThermodynamic parameteren_US
dc.subjectAdsorptionen_US
dc.titleRemoval of Methylene Blue from aqueous solution by Fe3O4@Ag/SiO2 nanospheres: Synthesis, characterization and adsorption performanceen_US
dc.title.journalJournal of Molecular Liquidsen_US
dc.typeArticleen_US

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