Journal
JOURNAL OF CATALYSIS
Volume 316, Issue -, Pages 174-181Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2014.05.009
Keywords
Graphene oxide; Titanium dioxide; Photocatalysis; Quinoline
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Funding
- Program for Changjiang Scholars
- Qualified Personnel Foundation of Taiyuan University of Technology [tyutrc-201301a]
- Youth Team Foundation of Taiyuan University of Technology [2013T087]
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Visible light responsive titanium dioxide/graphene oxide composites (TGO) were synthesized via electrostatic attraction at a low temperature of 80 degrees C. A superior visible light driven photocatalytic degradation of quinoline for TGO was achieved (75.56%), which was 6.17 times as high as that of P25 under the same reaction condition. The recycling experiment showed that 93.32% photocatalytic activity was remained after four cycles of repetitive uses. The excellent visible light driven photocatalytic activity and recycle stability could be attributed to the extending optical absorption edge and easy photogenerated electron-hole separation by trapping the electrons generated from titanium dioxide in the presence of graphene oxide. A tentative mechanism was postulated for the photodegradation of quinoline over TGO. (C) 2014 Elsevier Inc. All rights reserved.
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