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Author Kumar, Aniket ♦ Rout, Lipeeka ♦ Achary, L. Satish Kumar ♦ Mohanty, Anurag ♦ Marpally, Jyoshna ♦ Chand, Pradyumna Kumar ♦ Dash, Priyabrat
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ABSORPTION SPECTROSCOPY ♦ COPPER ♦ COPPER OXIDES ♦ CRYSTAL STRUCTURE ♦ CRYSTALS ♦ FIELD EMISSION ♦ HETEROJUNCTIONS ♦ NANOCOMPOSITES ♦ OPTICAL PROPERTIES ♦ PHOTOCATALYSIS ♦ PHOTOCURRENTS ♦ SCANNING ELECTRON MICROSCOPY ♦ SEMICONDUCTOR MATERIALS ♦ TIN ♦ TIN OXIDES ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ X-RAY DIFFRACTION
Abstract Semiconductor mediated photocatalysis has got enormous consideration as it has shown immense potential in addressing the overall energy and environmental issues. To overcome the earlier drawbacks concerning quick charge recombination and limited visible-light absorption of semiconductor photocatalysts, numerous methods have been produced in the past couple of decades and the most broadly utilized one is to develop the photocatalytic heterojunctions. In our work, a series of SnO{sub 2}-CuO nanocomposites of different compositions were synthesized by a combustion method and have been investigated in detail by various characterization techniques, such as wide angle X-ray diffraction (XRD), UV-vis spectroscopy, transmission electron microscopy (TEM), and field emission scanning electron microscopy (FE-SEM). The results revealed that the crystal structure and optical properties of the nanocomposites were almost same for all the compositions. FE-SEM images showed that the shape of SnO{sub 2}-CuO was spherical in nature and the 1: 1 Sn/Cu sample had a well-proportioned morphology. The malachite green dye was used for the photocatalytic studies in a photoreactor and monitored with a UV-visible spectrometer for different composition ratio of metal (Sn: Cu) such as 1:1, 1:2, 2:1, 1:0.5 and 0.5:1. The 1:1 ratio nanocomposite showed excellent photocatalytic degradation of 96 % compared to pure SnO{sub 2} and CuO. The mechanism of degradation and charge separation ability of the nanocomposite are also explored using photocurrent measurement study.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-13
Publisher Place United States
Volume Number 1724
Issue Number 1


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