Journal
MATERIALS LETTERS
Volume 115, Issue -, Pages 53-56Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.10.016
Keywords
Photocatalysis; g-C3N4; SiO2; Semiconductors; Polymeric composites
Funding
- National Natural Science Foundation of China [21003109]
- Science Foundation of Zhejiang Normal University [KJ20120028]
- National Undergraduate Training Program for Innovation and Entrepreneurship [201310345018]
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A visible-light driven SiO2/g-C3N4 composite was prepared by heating a mixture of SiO2 and melamine. The products were characterized by X-ray diffraction, Brunauer-Emmett-Teller analysis, transmission electron microscopy, and ultraviolet-visible diffuse reflectance spectroscopy. Results indicate that the composite only contained SiO2 and g-C3N4. The addition of SiO2 had minimal influence on light absorption, but the specific surface area was increased. In addition, the aggregation of g-C3N4 in the SiO2/g-C3N4 composite was weakened. The increased surface area and decreased aggregation of g-C3H4 are considered as the cause of the strong activity of the SiO2/g-C3N4 composite in RhB photodegradation. (C) 2013 Elsevier B.V. All rights reserved.
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