Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 165, Issue -, Pages 511-518Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2014.10.037
Keywords
g-C-3 N-4 nanosheets; WO3 nanorods; Ultrasonic-assist; Green process; Catalytic oxidation
Funding
- Major State Basic Research Development Program [2012CB224804]
- National Nature Science Foundation of China [21373054, 21173052]
- State Key Laboratory of Catalytic Materials and Reaction Engineering (RIPP, SINOPEC)
- Natural Science Foundation of Shanghai Science and Technology Committee [08DZ2270500]
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Carbon nitride nanosheets decorated with WO3 nanorods (WO3/g-C3N4) were fabricated via ultrasonic-assisted dispersion and conventional incipient wetness impregnation method. It is found that ultrasonic promoted the formation of g-C-3 N-4 nanosheets efficiently. The promotion effect in the structural evolution and catalytic performance for the rod-like structure of WO3 caused by g-C3N4 nanosheets were well studied. For the first time, the novel WO3/g-C3N4 nanocomposites were used as efficient catalysts in the green process of dialdehydes from the selective oxidation of cycloalkene oxides using H2O2 as a clean oxidant, owing to the high dispersion of active sites and the strong interaction between cycloalkene oxides and the NH or NH2 groups on the surface of g-C3N4 sheets. Here, C-3 N-4 nanosheets are considered as the catalyst support and co-catalyst as well. The novel nanocomposites are very stable and can be reused for five times without obvious loss of catalytic activity. (C) 2014 Elsevier B.V All rights reserved.
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