Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/288746
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dc.coverage.spatialChemistry
dc.date.accessioned2020-05-26T09:02:55Z-
dc.date.available2020-05-26T09:02:55Z-
dc.identifier.urihttp://hdl.handle.net/10603/288746-
dc.description.abstractActivated charcoal is a form of carbon compound having large surface area and vivid porous structure. Commercially activated carbon is obtained from animal, wood and organic based materials such as coal etc. Despite of its use as efficient adsorbent, the higher cost of commercial activated charcoal restricts its large scale use in different fields. This has lead to the use of agricultural waste products as the raw materials for the production of cost effective and eco friendly activated carbon and their applications in the adsorption of toxic species. newlineThe present study involves preparation and characterization of activated carbon from agricultural waste materials, namely, Areca (Areca catechu) Husk, Pepper (Piper nigrum) Peduncle and Coconut (Cocos nucifera) leaf. The activated carbons were obtained by three methods, namely, physical, chemical and microwave activation and were characterized by XRD, SEM, FTIR and TGA techniques. These activated carbons were used for the adsorption of Methylene blue, a cationic dye and Maleic acid. Adsorption studies were carried out as a function of initial concentration, contact time and temperature. By using the adsorption data, adsorption isotherm, kinetics and thermodynamics of adsorption were studied. newline(xx) newlineAll the activated carbons prepared were polycrystalline in nature as observed from XRD studies. The surface morphology of prepared activated carbons were studied before and after the adsorption process. Various functional groups such as, C=O, C=C, C-H etc., present on the surface interact with the adsorbate molecule by electrostatic and and#960;-interaction, which facilitates the adsorption process. newlineAdsorption of Methylene blue and Maleic acid on the surface of prepared activated carbons were analyzed by Freundlich, Langmuir and BET models and were found to follow the second order kinetics. The adsorption process was endothermic and spontaneous in all the cases. Among all the prepared activated carbons, physically activated Pepper Peduncle carbon showed highest adsorption capacity
dc.format.extent400
dc.languageEnglish
dc.relationinclude chapters
dc.rightsuniversity
dc.titleStudies on the Preparation Characterization and the Adsorption Behaviour of Activated Charcoal originated from Agricultural waste Products
dc.title.alternative
dc.creator.researcherHemashree K J
dc.description.note
dc.contributor.guideIshwara Bhat
dc.publisher.placeMangalore
dc.publisher.universityMangalore University
dc.publisher.institutionDepartment of Chemistry
dc.date.registered01/10/2018
dc.date.completed2018
dc.date.awarded
dc.format.dimensions
dc.format.accompanyingmaterialCD
dc.source.universityUniversity
dc.type.degreePh.D.
Appears in Departments:Department of Chemistry

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01_title page.pdfAttached File38.77 kBAdobe PDFView/Open
02_certificate.pdf61.77 kBAdobe PDFView/Open
03_declaration.pdf61.47 kBAdobe PDFView/Open
04_acknowledgement.pdf22.01 kBAdobe PDFView/Open
05_contents.pdf110.04 kBAdobe PDFView/Open
06_abstract.pdf64.93 kBAdobe PDFView/Open
07_chapter 1.pdf1.07 MBAdobe PDFView/Open
08_chapter 2.pdf812.57 kBAdobe PDFView/Open
09_chapter 3.pdf1.97 MBAdobe PDFView/Open
10_chapter 4.pdf1.83 MBAdobe PDFView/Open
11_chapter 5.pdf2.1 MBAdobe PDFView/Open
12_chapter 6.pdf646.44 kBAdobe PDFView/Open
13_chapter 7.pdf156.31 kBAdobe PDFView/Open
14_appendix.pdf140.21 kBAdobe PDFView/Open
80_recommendation.pdf8.8 MBAdobe PDFView/Open


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