Crystallite Size Dependence on Structural Parameters and Photocatalytic Activity of Microemulsion Mediated Synthesized Zno Nanoparticles Annealed at Different Temperatures

1
Dr.Jyoti Sharma
Dr.Jyoti Sharma
2
Mr. Manu Vashishtha
Mr. Manu Vashishtha
3
Dr. D.O.Shah
Dr. D.O.Shah
1 Dharmsinh Desai University, Nadiad, Gujarat

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Crystallite Size Dependence on Structural Parameters and Photocatalytic Activity of Microemulsion Mediated Synthesized Zno Nanoparticles Annealed at Different Temperatures Banner

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The objective of our study was to evaluate, in a population of Togolese People Living With HIV(PLWHIV), the agreement between three scores derived from the general population namely the Framingham score, the Systematic Coronary Risk Evaluation (SCORE), the evaluation of the cardiovascular risk (CVR) according to the World Health Organization.
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The synthesis of ZnO nanoparticles has attracted considerable interest because of their unique properties and potential applications in a variety of solid state devices, catalytic media etc. By using water-in-oil (w/o) microemulsions, nanodroplets of water were used as chemical reactor to synthesize nanoparticles of zinc oxide. Addition of reducing agent ((NH 4 ) 2 CO 3 ) and zinc salt (Zn(NO 3 ) 2 ) followed by heat treatment results in the formation of zinc oxide nanoparticles (NPs). The structural and optical properties of the samples were investigated by X-ray diffraction and UV-VIS-NIR absorption spectroscopy. X-ray diffraction revealed the wurtzite structure of ZnO. Percentage of lattice contraction and average particle size of the sample were also calculated from the XRD. Size-dependent blue shifts of absorption spectra revealed the quantum confinement effect. Furthermore, on increasing annealing temperature of ZnO NPs, crystallize size increases which, in turn,decreases the band gap energy and photocatalytic degradation efficiency of phenol.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

Dr.Jyoti Sharma. 2014. \u201cCrystallite Size Dependence on Structural Parameters and Photocatalytic Activity of Microemulsion Mediated Synthesized Zno Nanoparticles Annealed at Different Temperatures\u201d. Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 14 (GJSFR Volume 14 Issue B5): .

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GJSFR Volume 14 Issue B5
Pg. 19- 31
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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v1.2

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October 20, 2014

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English

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Crystallite Size Dependence on Structural Parameters and Photocatalytic Activity of Microemulsion Mediated Synthesized Zno Nanoparticles Annealed at Different Temperatures

Dr.Jyoti Sharma
Dr.Jyoti Sharma Dharmsinh Desai University, Nadiad, Gujarat
Mr. Manu Vashishtha
Mr. Manu Vashishtha
Dr. D.O.Shah
Dr. D.O.Shah

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