Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/426660
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dc.date.accessioned2022-12-17T10:45:40Z-
dc.date.available2022-12-17T10:45:40Z-
dc.identifier.urihttp://hdl.handle.net/10603/426660-
dc.description.abstractGraphene family materials with non-photocatalytic biocidal properties are highly sought after in the field of biomedicine and nanobiotechnology. But the applications of graphene-based materials were often hampered by their high production cost, low yield, non-renewable precursors, harmful processing newlinetechniques, etc. In this context, this study presented the successful usage of biomass materials as sustainable feedstock for the production of graphene derivatives. Five raw materials of biological origin namely, coconut shell, wood, sugarcane bagasse, Colocasia esculenta leaves and Nelumbo nucifera leaves, were investigated. The graphitized forms of the above materials were newlineused as precursors for the graphene nanomaterial synthesis. They were chemically oxidized and functionalized with tin oxide nanoparticles to form the composite. Nano-systems obtained using an identical chemical route from a universal source of carbon nanomaterials, namely carbon black, were also newlinestudied for the purpose of validation and comparison. The synthesis protocols adopted for the preparation of graphene-based materials were devoid of hazardous reducing agents or byproducts. The products obtained after each stage of treatment were characterized with the help of various spectroscopic and microscopic techniques. newlineEven though structural properties of all the precursors appeared to be broadly the same, a variation in their morphology and defect density was discerned. Various analyses revealed the formation of graphene oxide domains with distinct dimensions after the oxidative treatment. An increase in defect newlinedensity was also observed due to the intercalation of oxygen groups to the carbon layers. Post composite formation, a distribution of ultrafine tin oxide newlinenanoparticles on the graphene surface was observed. The distribution of oxygen newlinefunctionalities on the carbon backbone were found to play a major role in governing the dispersal of tin oxide particles during the nanocomposite formation.
dc.format.extentxx, 172p.;
dc.languageEnglish
dc.relation252
dc.rightsuniversity
dc.titleGraphene and graphene enhanced nanomaterials from biological precursors synthesis characterization and proliferant applications
dc.title.alternative
dc.creator.researcherMohan, Anu N
dc.subject.keywordAntibacterial Studies,
dc.subject.keywordGraphene Oxide,
dc.subject.keywordGraphene-tin Oxide Nanocomposite,
dc.subject.keywordPhysical Sciences
dc.subject.keywordPhysics
dc.subject.keywordPhysics Applied
dc.subject.keywordPseudomonas Aeruginosa.
dc.subject.keywordSustainable Precursors,
dc.description.note
dc.contributor.guideB, Manoj
dc.publisher.placeBangalore
dc.publisher.universityCHRIST University
dc.publisher.institutionDepartment of Physics and Electronics
dc.date.registered2014
dc.date.completed2019
dc.date.awarded2019
dc.format.dimensionsA4
dc.format.accompanyingmaterialNone
dc.source.universityUniversity
dc.type.degreePh.D.
Appears in Departments:Department of Physics and Electronics

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01_title.pdfAttached File34.77 kBAdobe PDFView/Open
02_prelim pages.pdf679.04 kBAdobe PDFView/Open
03_abstract.pdf101.53 kBAdobe PDFView/Open
04_table_of_contents.pdf45.95 kBAdobe PDFView/Open
05_chapter1.pdf146.04 kBAdobe PDFView/Open
06_chapter2.pdf203.47 kBAdobe PDFView/Open
07_chapter3.pdf795.13 kBAdobe PDFView/Open
08_chapter4.pdf2.08 MBAdobe PDFView/Open
09_chapter5.pdf1.45 MBAdobe PDFView/Open
10_chapter6.pdf783.07 kBAdobe PDFView/Open
11_chapter7.pdf114.11 kBAdobe PDFView/Open
12_annexures.pdf5.27 MBAdobe PDFView/Open
80_recommendation.pdf144.56 kBAdobe PDFView/Open


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