Synthesis of Se nanoparticles by using TSA ion and its photocatalytic application for decolorization of cango red under UV irradiation

Journal Article · Tue Mar 04 00:00:00 EST 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2007.04.012· OSTI ID:21068215

Yang, L B ^[1]; Xie, A J ^[1]; Liang, J J ^[2]; Zhang, B C ^[1]

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1. School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039 (China)
2. Chuzhou Vocational Technology College, Chuzhou 239000 (China)

In this study, we describe a size-controlled synthesis of selenium nanoparticles based on the reduction of selenious acid (H{sub 2}SeO{sub 3}) by UV-irradiated tungstosilicate acid (H{sub 4}SiW{sub 12}O{sub 40}, TSA) solution which serves both as reducing reagent and stabilizer. The nanoparticles are characterized by ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), the Raman spectra, transmission electron microscopy (TEM) and Zetasizer, respectively. The characteristic catalytic behavior of the Se nanoparticles is established by studying the decolorization of cango red in the presence of UV light. It is obvious that selenium catalyzes the reaction efficiently. The results show that the rate of dye decolorization varies linearly with the nanoparticle concentration and the rate of dye decolorization decreases with the size of the Se nanoparticles increasing.

• OSTI ID: 21068215
• Journal Information: Materials Research Bulletin, Vol. 43, Issue 3; Other Information: DOI: 10.1016/j.materresbull.2007.04.012; PII: S0025-5408(07)00158-4; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL PREPARATION
DYES
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
INFRARED SPECTRA
INORGANIC ACIDS
IONS
IRRADIATION
NANOSTRUCTURES
PARTICLES
PHOTOCATALYSIS
RAMAN SPECTRA
SELENIUM
SELENIUM COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY