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Title: Microwave-assisted polyol synthesis and characterization of pvp-capped cds nanoparticles for the photocatalytic degradation of tartrazine

Abstract

Highlights: • PVP-stabilized CdS nanoparticles have been fabricated by a polyol-microwave method. • CdS nanoparticles were characterized and the size was approximately 48 ± 10 nm. • Catalytic activity of our nanoparticles was examined for tartrazine degradation. • Remarkable results were obtained under both UV and visible light irradiations. - Abstract: Polyvinylpyrrolidone capped cadmium sulfide nanoparticles have been successfully synthesized by a facile polyol method with ethylene glycol. Microwave irradiation and calcination were used to control the size and shape of nanoparticles. Characterization with scanning electron microscopy revealed a restricted nanoparticles growth comparing with the uncapped product, hexagonal phase and 48 nm average particle size were confirmed by X-ray diffraction, and finally mechanism of passivation was suggested depending on Fourier transform infrared spectra. The efficiency of nanoparticles was evaluated by the photocatalytic degradation of tartrazine in aqueous solution under UVC and visible light irradiation. Complete degradation of the dye was observed after 90 min of UVC irradiation under optimized conditions. Kinetic of reaction fitted well to the pseudo-first-order kinetic and Langmuir–Hinshelwood models. Furthermore, 85% degradation of the dye in 9 h under visible light suggests that cadmium sulfide is a promising tool to work under visible light for environmental remediation.

Authors:
 [1];  [1];  [1]
  1. Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22581440
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 74; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; AQUEOUS SOLUTIONS; CADMIUM SULFIDES; CALCINATION; CRYSTAL GROWTH; FOURIER TRANSFORMATION; GLYCOLS; INFRARED SPECTRA; IRRADIATION; MICROWAVE RADIATION; NANOPARTICLES; NANOSTRUCTURES; PARTICLE SIZE; PHOTOCATALYSIS; PVP; SCANNING ELECTRON MICROSCOPY; VISIBLE RADIATION; X-RAY DIFFRACTION

Citation Formats

Darwish, Maher, Mohammadi, Ali, Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, and Assi, Navid. Microwave-assisted polyol synthesis and characterization of pvp-capped cds nanoparticles for the photocatalytic degradation of tartrazine. United States: N. p., 2016. Web. doi:10.1016/J.MATERRESBULL.2015.11.002.
Darwish, Maher, Mohammadi, Ali, Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, & Assi, Navid. Microwave-assisted polyol synthesis and characterization of pvp-capped cds nanoparticles for the photocatalytic degradation of tartrazine. United States. doi:10.1016/J.MATERRESBULL.2015.11.002.
Darwish, Maher, Mohammadi, Ali, Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, and Assi, Navid. Mon . "Microwave-assisted polyol synthesis and characterization of pvp-capped cds nanoparticles for the photocatalytic degradation of tartrazine". United States. doi:10.1016/J.MATERRESBULL.2015.11.002.
@article{osti_22581440,
title = {Microwave-assisted polyol synthesis and characterization of pvp-capped cds nanoparticles for the photocatalytic degradation of tartrazine},
author = {Darwish, Maher and Mohammadi, Ali and Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran and Assi, Navid},
abstractNote = {Highlights: • PVP-stabilized CdS nanoparticles have been fabricated by a polyol-microwave method. • CdS nanoparticles were characterized and the size was approximately 48 ± 10 nm. • Catalytic activity of our nanoparticles was examined for tartrazine degradation. • Remarkable results were obtained under both UV and visible light irradiations. - Abstract: Polyvinylpyrrolidone capped cadmium sulfide nanoparticles have been successfully synthesized by a facile polyol method with ethylene glycol. Microwave irradiation and calcination were used to control the size and shape of nanoparticles. Characterization with scanning electron microscopy revealed a restricted nanoparticles growth comparing with the uncapped product, hexagonal phase and 48 nm average particle size were confirmed by X-ray diffraction, and finally mechanism of passivation was suggested depending on Fourier transform infrared spectra. The efficiency of nanoparticles was evaluated by the photocatalytic degradation of tartrazine in aqueous solution under UVC and visible light irradiation. Complete degradation of the dye was observed after 90 min of UVC irradiation under optimized conditions. Kinetic of reaction fitted well to the pseudo-first-order kinetic and Langmuir–Hinshelwood models. Furthermore, 85% degradation of the dye in 9 h under visible light suggests that cadmium sulfide is a promising tool to work under visible light for environmental remediation.},
doi = {10.1016/J.MATERRESBULL.2015.11.002},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 74,
place = {United States},
year = {2016},
month = {2}
}