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Inhibition of fluorescence enhancement of benzimidazole derivative on doping ZnO with Cu and Ag

Paper ID Volume ID Publish Year Pages File Format Full-Text
26799 43979 2012 8 PDF Available
Title
Inhibition of fluorescence enhancement of benzimidazole derivative on doping ZnO with Cu and Ag
Abstract

A sensitive benzimidazole derivative fluorescent sensor for nanoparticulate ZnO has been designed and synthesized. The synthesized sensor emits fluorescence at 360 nm and this fluorescence is selectively enhanced by nanocrystalline ZnO. This technique is sensitive to detect and estimate ZnO at micro molar level. Doping ZnO with Cu does not hamper the sensitivity but Ag-doping significantly reduces the same. The nanocrystalline ZnO, Ag doped ZnO and Cu doped ZnO have been synthesized by sol–gel method and characterized by powder X-ray diffraction, scanning electron microscopy and UV–vis diffuse reflectance, photoluminescence and electrochemical impedance spectroscopies.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Synthesized sensor emits fluorescence at 360 nm. ► It is sensitive to detect and estimate ZnO at micro molar level. ► Doping ZnO with Cu does not hamper the sensitivity but Ag-doping significantly reduces the same. ► Benzimidazole derivative is adsorbed on the surface of semiconductor nanoparticle through azomethine nitrogen.

Keywords
SEM; EDX; Impedance; Fluorescence; ZnO
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Inhibition of fluorescence enhancement of benzimidazole derivative on doping ZnO with Cu and Ag
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 247, 1 November 2012, Pages 16–23
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us