Journal
DALTON TRANSACTIONS
Volume 43, Issue 3, Pages 1025-1031Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt52046c
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Funding
- National Natural Science Foundation of China [21101043]
- Natural Science Foundation of Heilongjiang Province of China (Key Program) [ZD20080201]
- Excellent Youth Foundation of Heilongjiang Province of China [JC200902]
- Research Fund for Doctoral Program of Higher Education of China [20112302120018]
- Natural Science Foundation of Heilongjiang Province of China [QC2010032]
- Fundamental Research funds for Central Universities [HIT.KLOF.2010009]
- Special Research funds for Scientific and Technical Innovative Talents of Harbin City [2012RFQXG108]
- China Postdoctoral Science Foundation [20100471046]
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One-dimensional mesoporous TiO2-Bi2WO6 hollow superstructures are prepared using a hydrothermal method and their photocatalysis and recycle properties are investigated. Experimental results indicate that anatase TiO2 nanoparticles are coupled with hierarchical Bi2WO6 hollow tubes on their surfaces. The TiO2-Bi2WO6 structure has a mesoporous wall and the pores in the wall are on average 21 nm. The hierarchical TiO2-Bi2WO6 heterostructures exhibit the highest photocatalytic activity in comparison with P25, pure Bi2WO6 hollow tube and mechanical mixture of Bi2WO6 tube and TiO2 nanoparticle in the degradation of rhodamine B (RhB) under simulated sunlight irradiation. The as-prepared TiO2-Bi2WO6 heterostructures can be easily recycled through sedimentation and they retains their high photocatalytic activity during the cycling use in the simulated sunlight-driving photodegradation process of RhB. The prepared mesoporous TiO2-Bi2WO6 with hollow superstructure is therefore a promising candidate material for water decontamination use.
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