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dc.contributor.authorGallerneault, Mary
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date.accessioned2017-09-28T16:27:40Z
dc.date.available2017-09-28T16:27:40Z
dc.identifier.urihttp://hdl.handle.net/1974/22780
dc.description.abstractSince the ``Scotch tape" discovery of graphene synthesis over a decade ago there has been significant interest in the industrial scale-up of graphene production, with the understanding that the material's exceptional physical and electrical properties could be used to enhance finished products. One remarkable property of graphene is the degree to which it, an atomically-thin material, can impart hydrophobicity to a surface. Liquid-phase surface treatments are familiar to many industrial engineering practices and it is well-known that graphene oxide, a graphene derivative which can be modified to achieve graphene-like material qualities, disperses well in many solvents. Although graphene oxide is hydrophilic, it can be made hydrophobic by reduction, and perhaps even superhydrophobic with the inclusion of surface topography. Therefore, the reduction of graphene oxide films offers one possible route to graphene's entry to industry as a hydrophobic surface coating treatment. This thesis begins with an experimental investigation into graphene oxide's dispersibility in different solvents. The influence of these solvents on the physico-chemical characteristics of the resulting graphene oxide and reduced graphene oxide thin films cast on a silicon substrate is studied. It is found that the choice of dispersing medium determines the degree of surface coverage and therefore the degree of film wettability. Subsequently, the chemical nature and hydrophobicity increase that is imparted by a new photoreduction process applied to the graphene oxide-based films is researched. From this, it was observed that the chemistry of the photoreduced films greatly differs from that of the thermally reduced films, including larger quantities of oxygen. The thesis concludes with a brief examination of the degree to which substrate topography can enhance the hydrophobicity of graphene oxide-based films deposited on chemically etched glass. It is found that with the addition of a roughened surface topography the water contact angle can be improved by up to 45°.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectGraphene Oxideen_US
dc.subjectReduced Graphene Oxideen_US
dc.subjectSprayingen_US
dc.subjectWater Contact Angleen_US
dc.subjectIndustrial Coating Technologyen_US
dc.subjectHydrophobicityen_US
dc.titlePreparation and Characterization of Hydrophobic Graphene-Based Thin Filmsen_US
dc.typeThesisen
dc.description.degreeMaster of Applied Scienceen_US
dc.contributor.supervisorDocoslis, Aris
dc.contributor.supervisorTruica-Marasescu, Florina
dc.contributor.departmentChemical Engineeringen_US


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