Removal of Orange G and Rhodamine B dyes from aqueous system using hydrothermally synthesized zinc oxide loaded activated carbon (ZnO-AC)

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dc.contributor.authorSaini, J.
dc.contributor.authorGarg, V.K.
dc.contributor.authorGupta, R.K.
dc.contributor.authorKataria, N.
dc.date.accessioned2018-07-14T01:19:07Z
dc.date.accessioned2024-08-14T06:40:27Z
dc.date.available2018-07-14T01:19:07Z
dc.date.available2024-08-14T06:40:27Z
dc.date.issued2017
dc.description.abstractThis study reports the synthesis of zinc oxide loaded activated carbon (ZnO-AC) using hydrothermal method and its use to remove organic dyes [Orange G (OG) and Rhodamine B (Rh-B)] from the aqueous system under varying process conditions. ZnO-AC nanoparticles were characterized using XRD, SEM, EDX, DLS, and FTIR. The Langmuir adsorption model was best fitted to the experimental data for both the dyes. Langmuir adsorption capacity (qmax) for OG and Rh-B was 153.8 and 128.2 mg/g, respectively. The rate of adsorption was investigated by various models namely pseudo-first-order, pseudo-second-order and intraparticle diffusion model. Rate mechanism was described by pseudo-second-order model for both the dyes. Thermodynamic studies suggested that removal of Rh-B onto ZnO-AC was endothermic up to a temperature of 40 ?C while OG removal decreased with increase in temperature. Negative values of ? G0 for adsorption of dyes suggested spontaneous adsorption processes. ? 2017 Elsevier Ltd. All rights reserved.en_US
dc.identifier.citationSaini, J., Garg, V. K., Gupta, R. K., & Kataria, N. (2017). Removal of Orange G and Rhodamine B dyes from aqueous system using hydrothermally synthesized zinc oxide loaded activated carbon (ZnO-AC). Journal of Environmental Chemical Engineering, 5(1), 884-892. doi: 10.1016/j.jece.2017.01.012en_US
dc.identifier.doi10.1016/j.jece.2017.01.012
dc.identifier.issn22133437
dc.identifier.urihttp://10.2.3.109/handle/32116/1451
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S221334371730012X?via%3Dihub
dc.language.isoen_USen_US
dc.publisherElsevier Ltden_US
dc.subjectActivated carbonen_US
dc.subjectAdsorptionen_US
dc.subjectCitrus fruitsen_US
dc.subjectDyesen_US
dc.subjectEnzyme kineticsen_US
dc.subjectHydrothermal synthesisen_US
dc.subjectNanoparticlesen_US
dc.subjectRhodiumen_US
dc.subjectScanning electron microscopyen_US
dc.subjectStripping (dyes)en_US
dc.subjectZincen_US
dc.subjectZinc oxideen_US
dc.subjectDye removalen_US
dc.subjectHydrothermally synthesizeden_US
dc.subjectIntraparticle diffusion modelsen_US
dc.subjectLangmuir adsorption modelen_US
dc.subjectProcess parametersen_US
dc.subjectPseudo-second order modelen_US
dc.subjectSpontaneous adsorptionen_US
dc.subjectThermodynamic studiesen_US
dc.subjectChemicals removal (water treatment)en_US
dc.titleRemoval of Orange G and Rhodamine B dyes from aqueous system using hydrothermally synthesized zinc oxide loaded activated carbon (ZnO-AC)en_US
dc.title.journalJournal of Environmental Chemical Engineeringen_US
dc.typeArticleen_US

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