Preparation and characterization of nanocrystalline CuO powders with the different surfactants and complexing agent mediated precipitation method

Journal Article · Fri Aug 15 00:00:00 EDT 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.05.002· OSTI ID:22420537

Rajendran, V.

Highlights: • CuO nanostructures by surfactants mediated method. • Structural and optical properties of CuO nanostructures changes under the effect of surface modifier. • Citric acid assisted is the best, in terms of size, morphology and optical properties than that of CTAB, SDS and PEG-400. - Abstract: Nanostructures of copper oxide (CuO) was synthesized into crystallite sized ranging from 20 to 50 nm in the presence of different surfactants, and complex agent such as cityl tri methyl ammonium bromide (CTAB), sodium do decyl sulfate (SDS), poly ethylene glycol (PEG-400) and citric acid via a precipitation route. Variations in several parameters and their effects on the structural and optical properties of CuO nanostructures (crystallite size, morphology and band gap) were investigated by XRD, FTIR, SEM and UV analysis. The UV–visible absorption spectra of the different surfactants and complexing agent assisted CuO nanostructures indicates that the estimated optical band gap energy value (1.94–1.98 eV) is higher than that of the bulk CuO value (1.4 eV), which is attributed to the quantum confinement effect. The formation mechanism of different surfactants and complexing agent assisted CuO nanostructures is also proposed.

• OSTI ID: 22420537
• Journal Information: Materials Research Bulletin, Vol. 56; Other Information: Copyright (c) 2014 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
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTRA
AMMONIUM COMPOUNDS
BROMIDES
CITRIC ACID
COPPER OXIDES
CRYSTALS
FOURIER TRANSFORMATION
INFRARED SPECTRA
MICROSTRUCTURE
NANOSTRUCTURES
OPTICAL PROPERTIES
POLYETHYLENE GLYCOLS
POWDERS
SCANNING ELECTRON MICROSCOPY
SEMICONDUCTOR MATERIALS
SODIUM COMPOUNDS
SULFATES
X-RAY DIFFRACTION