Abstract
Nanocrystalline composite zinc oxide (ZnO) and CdS with Fe doping thin films grown on glass substrate by chemical method. The parameters like temperature of the solution, UV exposure, pH of solution, immersion time, immersion cycles, have been controlled and standardized for nanocrystalline film. The synthesis NPs were analyzed by X-ray diffraction (XRD). Rietveld method shows that Fe-doped composite ZnO/CdS is a single pure phase and wurtzite structure. Samples were analyzed by sophisticated various instrument like XRD, UV- Visible spectrometer, HRTEM, HRSEM and composition was analyzed by EDX attached with HRTEM. The band gap was calculated by absorption spectroscopy and found that absorption was blue-shifted. The electron structure shows that doping changes the crystal structure and transition level create better efficiency and creates octahedral symmetry. The antibacterial studies showed that the 5.0 wt% Fe-doped exhibited maximum antibacterial effect.
Highlights
Nano based Zinc oxide and Cadmium sulphide with doped thin films has been gaining much attention due to potentialapplications in largeareas
Results nd Discussion Rietveld Refinement Analysis of Xrd X-ray diffraction (XRD) analysis of Fe dopedZnO/ Cadmium Sulphide (CdS) nanoparticles was prepared for structural analysis and diffractometer was maintained withstandard voltage of 40kv and a current was maintained at 30mA
The results shown in the Table-2 depict that Fe doped zinc oxide (ZnO)/CdS nanoparticles are efficiently giving zone inhibition.[26]
Summary
Nano based Zinc oxide and Cadmium sulphide with doped thin films has been gaining much attention due to potentialapplications in largeareas. ZnO/CdS-NPs exhibit potential antibacterial activities due to large surface to volume ratio. Among the various compound semiconductors, ZnO/CdS with Fe dopped nanoparticles have shown interesting antibacterial activity. The paperdiscusses the reporton preparation of composite Zinc oxide (ZnO)and Cadmium Sulphide (CdS) with Fe doped thin films and studies the structuralproperties, surface morphology, optoelectronic and antimicrobial properties with water treatmentalong with thin films forms.
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