Please use this identifier to cite or link to this item: http://13.232.72.61:8080/jspui/handle/123456789/2011
Title: Rapid synthesis of C-dot@TiO2 core-shell composite labeling agent: Probing of complex fingerprints recovery in fresh water
Authors: Amith Yadav, H. J.
Eraiah, B.
Basavaraj, R. B.
Nagabhushana, H.
Darshan, G. P.
Sharma, S. C.
Daruka Prasad, B.
Nithya, R.
Shanthi, S.
Keywords: Carbon dots
Diffuse reflectance spectroscopy
Fingerprint
Fresh water
Lip print
Issue Date: 2018
Publisher: ELSEVIER
Citation: Yadav, H. A., Eraiah, B., Basavaraj, R. B., Nagabhushana, H., Darshan, G. P., Sharma, S. C., ... & Shanthi, S. (2018). Rapid synthesis of C-dot@ TiO2 core-shell composite labeling agent: Probing of complex fingerprints recovery in fresh water. Journal of Alloys and Compounds, 742, 1006-1018
Abstract: A straightforward and facile one-pot synthesis of carbon dots from pomegranate waste peels was performed using the hydrothermal carbonization technique at a gentle temperature (180 °C). The carbon dots/TiO2 (C-dot@TiO2) core-shell nanostructures (NSs) are prepared by hydrothermal route. The obtained products are well characterized for their chemical composition and morphological features by different spectroscopic and transmission electron microscopy. The synthesized C-dot@TiO2 are characterized by transmission electron microscopy (TEM), fluorescence spectrophotometer, UV−Vis absorption spectra as well as Fourier transform infrared spectroscopy (FTIR). The results reveal that the as-prepared C-dots are spherical shape with an average diameter of 6 μm. Powder dusting method is used to visualize latent fingerprints (LFPs) by staining uncoated and carbon coated NSs on various porous and non-porous surfaces under UV light. The optimized powders are also used to recover latent prints submerged in water on different non-porous dried surfaces including aluminum foil, glass, mica sheet and different textured marbles. Also, the duration of submersion affects the quality of FPs developed; the longer the duration, the worse the quality is. It is clear that core-shell NPs display high sensitivity, reproducibility, selectivity, reliability, and can obtain the complete three levels of friction ridge details.
URI: http://13.232.72.61:8080/jspui/handle/123456789/2011
ISSN: 0925-8388
Appears in Collections:Faculty of Science

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