4.7 Article

A novel route to graphite-like carbon supporting SnO2 with high electron transfer and photocatalytic activity

Journal

JOURNAL OF HAZARDOUS MATERIALS
Volume 287, Issue -, Pages 126-132

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.01.037

Keywords

SnO2 nanoparticles; Graphite-like carbon; Nanocomposite; Glyphosate; Photocatalysis

Funding

  1. National Natural Science Foundation of China [51302072]
  2. Natural Science Foundation of Hubei Provincial Department of Education [Q20131010]
  3. Natural Science Fund for Creative Research Groups of Hubei Province of China [2014CFA015]

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Mesoporous graphite-like carbon supporting SnO2 (carbon-SnO2) nanocomposites were prepared by a modified solvothermal method combined with a post-calcination at 500 degrees C under a nitrogen atmosphere. The polyvinylpyrrolidone not only promotes the nucleation and crystallization, but also provides the carbon source in the process. The results of scanning electron microscopy and transmission electron microscopy show a uniform distribution of SnO2 nanoparticles on the graphite- like carbon surface. Raman and X-ray photoelectron spectra indicate the presence of strong C-Sn interaction between SnO2 and graphite-like carbon. Photoelectrochemical measurements confirm that the effective separation of electron-hole pairs on the carbon-SnO2 nanocomposite leads to a high photocatalytic activity on the degradation of Rhodamine B and glyphosate under simulated sunlight irradiation. The nanocomposite materials show a potential application in dealing with the environmental and industrial contaminants under sunlight irradiation. (C) 2015 Elsevier B.V. All rights reserved.

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