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Title: Reduced graphene oxide/CeO{sub 2} nanocomposite with enhanced photocatalytic performance

In this work, reduced graphene oxide /cerium oxide (RGO/CeO{sub 2}) nanocomposite was synthesized by in situ reduction of cerium nitrate Ce(NO{sub 3}){sub 3}·6H{sub 2}O in the presence of graphene oxide by hydrazine hydrate (N{sub 2}H{sub 4}.H{sub 2}O). The intrinsic characteristics of as-prepared nanocomposite were studied using powder x-ray diffraction (XRD), Raman spectroscopy and field-emission scanning electron microscopy (FESEM). The photocatalytic degradation of methylene blue (MB) was employed as a model reaction to evaluate the photocatalytic activity of the RGO/CeO{sub 2} nanocomposite. The as-obtained RGO/CeO{sub 2} nanocomposite displays a significantly enhanced photocatalytic degradation of MB dye in comparison with bare CeO{sub 2} nanoparticles under sunlight irradiation, which can be attributed to the improved separation of electron-hole pairs and enhanced adsorption performance due to presence of RGO.
Authors:
; ; ; ; ;  [1] ;  [2]
  1. Laboratory For Sensors and Physics Education, Department of Physics, GND University, Amritsar-143005 (India)
  2. Semiconductors Laboratory, Department of Physics, GND University, Amritsar– 143005 (India)
Publication Date:
OSTI Identifier:
22391721
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1661; Journal Issue: 1; Conference: ICCMP 2014: International Conference on Condensed Matter Physics 2014, Shimla (India), 4-6 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ADSORPTION; CARBON OXIDES; CERIUM NITRATES; CERIUM OXIDES; COMPARATIVE EVALUATIONS; FIELD EMISSION; GRAPHENE; HOLES; HYDRATES; HYDRAZINE; IRRADIATION; METHYLENE BLUE; NANOCOMPOSITES; NANOPARTICLES; PHOTOCATALYSIS; POWDERS; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; X-RAY DIFFRACTION