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Dynamics of Kaolinite-Urea Nanocomposites via Coupled DMSO-Hydroxyaluminum Oligomeric Intermediates

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dc.contributor.author Sempeho, Siafu Ibahati
dc.contributor.author Kim, Hee Taik
dc.contributor.author Mubofu, Egid
dc.contributor.author Pogrebnoi, Alexander
dc.contributor.author Shao, Godlisten
dc.contributor.author Hilonga, Askwar
dc.date.accessioned 2019-05-22T07:36:22Z
dc.date.available 2019-05-22T07:36:22Z
dc.date.issued 2015
dc.identifier.uri http://dx.doi.org/10.1155/2015/920835
dc.identifier.uri http://dspace.nm-aist.ac.tz/handle/123456789/139
dc.description Research Article published by Hindawi Publishing Corporation Indian Journal of Materials Science en_US
dc.description.abstract Kaolinite-urea nanocompositeswere prepared via intercalation reactions in an attempt to investigate the dynamic nature of kaolinite morphology for advanced applications in controlled release systems (CRS). Characterization was done using SEM-EDX, XRF, ATR-FTIR, XRD, and DT/DTG; Andreasen pipette sedimentation technique was used to determine the grain size distribution of the raw kaolinite. The X-ray diffraction pattern revealed the existence of an FCC Bravais lattice where the intercalation ratios attained were 51.2%, 32.4%, 7.0%, and 38.4% for hydroxyaluminum oligomeric intercalated kaolinite, substituted urea intercalated kaolinite, calcined DMSO intercalated kaolinite, and hydroxyaluminum reintercalated kaolinite, respectively, along with their respective crystallite sizes of 33.51–31.73 nm, 41.92–39.69 nm, 22.31–21.13 nm, and 41.86–39.63 nm. The outcomes demonstrated that the employed intercalation routes require improvements as the intercalation reactions were in average only ≈32.3%. The observations unveiled that it is possible to manipulate kaolinite structure into various morphologies including dense-tightly packed overlapping euhedral pseudo hexagonal platelets, stacked vermiform morphologies, postulated forms, and unique patterns exhibiting self-assembled curled glomeruli-like morphologies. Such a diversity of kaolinite morphologies expedites its advanced applications in the controlled release systems (CRS) such as drug delivery systems and controlled release fertilizers (CRFs). en_US
dc.language.iso en_US en_US
dc.publisher Hindawi Publishing Corporation Indian Journal of Materials Science en_US
dc.subject Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING en_US
dc.title Dynamics of Kaolinite-Urea Nanocomposites via Coupled DMSO-Hydroxyaluminum Oligomeric Intermediates en_US
dc.type Article en_US


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