Photo-Catalytic Activity of Quencher Impurity Doped ZnS Nanocrystals

Abstract:

Intrinsic and extrinsic semiconductor nanocrystals seem to be good candidates for modern era optoelectronic and photo-catalytic applications due to their size tunable photo-physical and photo-chemical properties. In the present investigation, polyvinyl pyrrolidone (PVP) capped quencher impurity (Ni) doped ZnS nanocrystals have been synthesized using facile bottom-up synthesis technique; colloidal chemical co-precipitation method. Crystallographic and morphological characterization of synthesized nanomaterials have been carried out using X-ray diffraction (XRD) and transmission electron microscope (TEM), respectively. Photo-catalytic activity of the synthesized nanomaterials has been studied using methylene blue (MB) dye as a test contaminant. Photo-catalytic behavior dependence on dopant concentration, UV radiation curing and annealing of synthesized semiconductor nanomaterials have been studied in detail under sun light exposure.

• Periodical: Advanced Materials Research (Volumes 93-94)
• Pages: 288-291
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.93-94.288
• Online since: January 2010
• Authors: Mansi Chitkara, Karamjit Singh, Tinu Bansal, I.S. Sandhu, H.S. Bhatti
• Keywords: Nanocrystal, Photo-Catalytic Activity, Quencher Impurity

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DOI: 10.1063/1.1485125