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dc.contributor.author Mukwevho, N
dc.contributor.author Gusain, Rashi
dc.contributor.author Fosso-Kankeua, E
dc.contributor.author Kumar, Neeraj
dc.contributor.author Waanders, F
dc.contributor.author Ray, Suprakas S
dc.date.accessioned 2020-03-24T09:19:18Z
dc.date.available 2020-03-24T09:19:18Z
dc.date.issued 2020-01
dc.identifier.citation Mukwevho, N. et al. 2020. Removal of naphthalene from simulated wastewater through adsorption-photodegradation by ZnO/Ag/GO nanocomposite. Journal of Industrial and Engineering Chemistry, vol. 81, no. 25, pp. 393-404 en_US
dc.identifier.issn 1226-086X
dc.identifier.issn 1876-794X
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S1226086X19305088
dc.identifier.uri https://doi.org/10.1016/j.jiec.2019.09.030
dc.identifier.uri http://hdl.handle.net/10204/11389
dc.description Copyright: 2020 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Journal of Industrial and Engineering Chemistry, vol. 81, no. 25, pp. 393-404 en_US
dc.description.abstract In this study, a ZnO/Ag/GO nanocomposite was synthesised and used as photocatalyst for effective photodegradation of naphthalene from simulated wastewater under visible light. Chemical and morphological characterisation were successfully done using XRD, PL, UV–vis, FTIR, XPS, FESEM and HRTEM analytical tools. Photocatalytic degradation experiments were first carried out under dark conditions and then under visible-light irradiation. Adsorption study of naphthalene prior to photocatalysis using synthesised material was thoroughly done by studying the kinetics and adsorption isotherm models. All as-synthesised materials (ZnO nanoparticles, binary ZnO/Ag, and ternary ZnO/Ag/GO nanocomposites) followed pseudo-second-order kinetics and the Freundlich adsorption isotherm, confirming the adsorption on hetero-structural surface. ZnO/Ag/GO could successfully adsorb 80% naphthalene in 20 min, with 500 mg.g-1 adsorption capacity. High adsorption of naphthalene molecules on ZnO/Ag/GO surfaces trigger improved photodegradation efficiency upon light irradiation. Incorporation of plasmonic Ag nanoparticles and 2D graphene oxide (GO) to ZnO semiconductor improved the photocatalytic degradation efficiency of naphthalene, achieving up to 92% degradation in 50 min. The photodegradation of naphthalene follows the Langmuir-Hinshelwood kinetics model and was found acceptable to express the photodegradation rate. Furthermore, the ZnO/Ag/GO photocatalyst could easily be recycled and reused for five cycles, maintaining up to 85% of its photodegradation efficiency. en_US
dc.language.iso en en_US
dc.relation.ispartofseries Workflow;23144
dc.subject Adsorption en_US
dc.subject Kinetics en_US
dc.subject Nanocomposite en_US
dc.subject Naphthalene en_US
dc.subject Photocatalytic degradation en_US
dc.title Removal of naphthalene from simulated wastewater through adsorption-photodegradation by ZnO/Ag/GO nanocomposite en_US
dc.type Article en_US


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