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

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dc.creatorSempeho, Siafu Ibahati
dc.creatorKim, Hee Taik
dc.creatorMubofu, Egid
dc.creatorPogrebnoi, Alexander
dc.creatorShao, Godlisten
dc.creatorHilonga, Askwar
dc.date2019-05-22T07:36:22Z
dc.date2019-05-22T07:36:22Z
dc.date2015
dc.date.accessioned2022-10-25T09:24:44Z
dc.date.available2022-10-25T09:24:44Z
dc.descriptionResearch Article published by Hindawi Publishing Corporation Indian Journal of Materials Science
dc.descriptionKaolinite-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).
dc.formatapplication/pdf
dc.identifierhttp://dx.doi.org/10.1155/2015/920835
dc.identifierhttp://dspace.nm-aist.ac.tz/handle/123456789/139
dc.identifier.urihttp://hdl.handle.net/123456789/95726
dc.languageen_US
dc.publisherHindawi Publishing Corporation Indian Journal of Materials Science
dc.subjectResearch Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
dc.titleDynamics of Kaolinite-Urea Nanocomposites via Coupled DMSO-Hydroxyaluminum Oligomeric Intermediates
dc.typeArticle

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