Journal
SMALL
Volume 8, Issue 2, Pages 265-271Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201101686
Keywords
graphdiyne; hydrothermal synthesis; nanocomposites; photocatalysis; titania
Categories
Funding
- National Natural Science Foundation of China [20971125, 21031005, 21006116, 21050110428, 91122014, 51172235]
- Beijing Municipal Natural Science Foundation [2082022]
- Foundation for State Key Laboratory of Multi-phase Complex Systems [MPCS-2011-D-15]
- State Key Laboratory of Biochemical Engineering [2010KF-09]
- CAS [2010Y1GB5]
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Titania nanoparticles (P25) are successfully chemically bonded with graphdiyne (GD) nanosheets by a facile hydrothermal treatment, to form a novel nanocomposite photocatalyst. The as-prepared P25GD nanocomposite exhibits higher photocatalytic activity for degrading methylene blue under UV irradiation than not only P25 and P25carbon nanotube composite but also the current well-known P25graphene composite photocatalysts. Moreover, P25GD also shows considerable visible-light-driven photocatalytic activity, since the formation of chemical bonds between P25 and GD effectively decreases the bandgap of P25 and extends its absorbable light range. The photocatalytic activity of P25GD can be adjusted by changing the content of GD in composites and the optimized value is about 0.6 wt%. Such a nanocomposite photocatalyst might find potential application in a wide range of fields including air purification and waste water treatment.
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