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dc.contributor.authorMariyam, Asna
dc.contributor.authorMittal, Jyoti
dc.contributor.authorSakina, Farzeen
dc.contributor.authorBaker, Richard T.
dc.contributor.authorSharma, Ashok K.
dc.contributor.authorMittal, Alok
dc.date.accessioned2021-05-31T12:30:03Z
dc.date.available2021-05-31T12:30:03Z
dc.date.issued2021-06
dc.identifier.citationMariyam , A , Mittal , J , Sakina , F , Baker , R T , Sharma , A K & Mittal , A 2021 , ' Efficient batch and fixed-bed sequestration of a basic dye using a novel variant of ordered mesoporous carbon as adsorbent ' , Arabian Journal of Chemistry , vol. 14 , no. 6 , 103186 . https://doi.org/10.1016/j.arabjc.2021.103186en
dc.identifier.issn1878-5352
dc.identifier.otherPURE: 274063330
dc.identifier.otherPURE UUID: 546fa279-8bc6-4588-8bc6-36b51bbe9548
dc.identifier.otherJisc: e8ed2dd9649442d4903fa42d62317174
dc.identifier.otherORCID: /0000-0002-3304-3280/work/93514570
dc.identifier.otherScopus: 85105738294
dc.identifier.otherWOS: 000657694200020
dc.identifier.urihttp://hdl.handle.net/10023/23283
dc.descriptionThe authors are grateful to the Ministry of Human Resource Development of the Government of India for financial support through the SPARC initiative (project: SPARC/2018-2019/P307/SL). We thank the University of St Andrews for a PhD studentship for FS. TEM was carried out at the Electron Microscopy Facility, School of Chemistry, University of St Andrews. One of the authors (Asna Mariyam) is thankful to MANIT, Bhopal for providing fellowship support.en
dc.description.abstractHerein, an ordered mesoporous carbon (OMC) material was prepared using a metal and halogen free method, and its adsorptive potential for the cationic dye, ‘Methylene Blue’ (MB), was investigated. Batch studies were carried out to determine the influence of pH, dye concentration, adsorbent quantity, and contact time on adsorption behaviour. Adsorption models based on Langmuir, Freundlich, Temkin and Dubinin-Radunkevich isotherms were validated and the thermodynamic variables governing the nature and feasibility of reaction were evaluated. Values of the adsorption uptake at equilibrium (qe) decreased as the temperature was increased, suggesting thereby that the adsorption process involved was exothermic. Kinetic studies indicated that adsorption obeyed pseudo-second order behaviour and operated via a ‘film-diffusion’ mechanism. When attempts were made to carry out bulk removal of MB using a fixed bed adsorption column, 99.5% saturation could be achieved. Desorption of MB from the used column was performed and dye recovery was almost 100% in the first cycle and on 5th cycle 99% of dye was obtained. This pattern clearly indicates that for the cationic dye MB, OMC acts as a highly efficient and robust adsorbent.
dc.format.extent15
dc.language.isoeng
dc.relation.ispartofArabian Journal of Chemistryen
dc.rightsCopyright © 2021 The Authors. Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en
dc.subjectOrdered Mesoporous Carbonen
dc.subjectAdsorptionen
dc.subjectFilm-diffusionen
dc.subjectPseudo-second order reactionen
dc.subjectFixed-beden
dc.subjectQD Chemistryen
dc.subjectT-NDASen
dc.subject.lccQDen
dc.titleEfficient batch and fixed-bed sequestration of a basic dye using a novel variant of ordered mesoporous carbon as adsorbenten
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.St Andrews Sustainability Instituteen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1016/j.arabjc.2021.103186
dc.description.statusPeer revieweden


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