Adsorption of Methyl Orange on Activated Carbon: Influence of Cerium Oxide Loading

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atmire.migration.oldid5863
dc.contributor.advisorHill, Josephine
dc.contributor.authorPuthoor, Sreelakshmi
dc.contributor.committeememberRoberts, Edward
dc.contributor.committeememberPonnurangam, Sathish
dc.date.accessioned2017-08-17T17:37:47Z
dc.date.available2017-08-17T17:37:47Z
dc.date.issued2017
dc.date.submitted2017en
dc.description.abstractAdsorption by carbon is a commonly used treatment method for the removal of organic contaminants from waste water. The surface properties of activated carbon can be modified to enhance their adsorption affinity for target contaminants. In this study, the influence of cerium oxide loading onto carbon materials with different pore sizes in improving their adsorption capacity for methyl orange, which is an anionic organic pollutant, was analyzed. The adsorption capacity was increased by seven times after cerium oxide loading in mesoporous carbon materials at a pH of 5, whereas in microporous materials there was no notable increase in adsorption capacity. Also, the increase in adsorption capacity was directly proportional to the weight percentage of cerium oxide loading in the mesoporous activated carbon material. Methyl orange adsorbs on cerium oxide through electrostatic interactions. More specifically, the anionic methyl orange is attracted to the localized positive charges on the cerium oxide supported on the carbon materials. Decreasing pH resulted in an increased adsorption capacity likely because of the abundance of protons in the solution, causing an increase in localized positive charge density on the cerium oxide. Results from this study may be extended to more complex systems, such as the adsorption of naphthenic acids contained in oil sands process water.en_US
dc.identifier.citationPuthoor, S. (2017). Adsorption of Methyl Orange on Activated Carbon: Influence of Cerium Oxide Loading (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/24716en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/24716
dc.identifier.urihttp://hdl.handle.net/11023/4016
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering--Chemical
dc.subject.otherAdsorption
dc.subject.otherActivated Carbon
dc.subject.otherCerium Oxide
dc.titleAdsorption of Methyl Orange on Activated Carbon: Influence of Cerium Oxide Loading
dc.typemaster thesis
thesis.degree.disciplineChemical and Petroleum Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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