Theoretical Modeling of Front Propagation of CdS Nanoparticles in a Gel

Mazen Al-Ghoul; Tarek Ghaddar

doi:10.4028/www.scientific.net/JNanoR.11.19

Paper Titles

Synthesis and Electrical Characterization of Multilayer Thin Films Designed by Layer-by-Layer Self Assembly of Nanoparticles
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Study of Symmetries on some Chemical Nanostructure
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Self-Diffusion in Magnetron-Sputtered Nanocrystalline Fe Films
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Theoretical Modeling of Front Propagation of CdS Nanoparticles in a Gel
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Application of ZnO Nanoparticles EM Wave Detector Prepared by Sol-Gel and Self-Combustion Techniques
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Synthesis and Characterization of TiO₂ Nanoparticles via Chemical Bath Deposition (CBD) Method
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Effects of Microwave Irradiation Type on the Morphological and Dimensional Properties of Silver Nanoparticles
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A Powerful Method to Describe Transport Properties of Nano and Bio Materials
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HomeJournal of Nano ResearchJournal of Nano Research Vol. 11Theoretical Modeling of Front Propagation of CdS...

Theoretical Modeling of Front Propagation of CdS Nanoparticles in a Gel

Abstract:

We report a theoretical model to describe the spatiotemporal dynamics of a new system consisting of sulde ions di¤using into an organic gel containing mercaptoethanol-capped cadmium ions. The product, cadmium sulde, exhibits a faint yellow transparent propagating front starting at the gel-outer electrolyte interface. When subjected to UV light, this system reveals uorescing CdS nuclei localized spatially in a narrow region (constant width), called pulse, that leads the front and propagates down the tube. The reported model is based on reaction-di¤usion equations coupled to dynamical competitive particle growth. The resulting evolution equations were solved numerically and the results are shown.