Journal
CATALYSIS LETTERS
Volume 145, Issue 2, Pages 647-653Publisher
SPRINGER
DOI: 10.1007/s10562-014-1423-1
Keywords
Titanate/N-doped anatase composite; Hierarchical microspheres; Calcination treatment; Photocatalytic degradation
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Funding
- Science & Technology Plan Project of Guangzhou City, China [2013J4300035]
- National Natural Science Foundation of China [51172233]
- Foundation of the Key Laboratory of Water and Air Pollution Control of Guangdong Province [GD2012A05]
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Titanate/N-doped anatase composite hierarchical microspheres have been obtained by calcination treatment of NH4-titanate hierarchical microspheres at proper temperatures. The phase structure is dependent on the calcination temperature and varies from titanate to anatase with increasing calcination temperature, with the heterophase in-between. The composite structure is verified by the results of XRD, visible and UV Raman spectra. The titanate/N-doped anatase composite sample calcined at 300 A degrees C for 1 h exhibits enhanced activity in the degradation of Rhodamine B under visible light irradiation compared to the other samples. The enhanced activity can be ascribed to the synergistic effect of titanate and N-doped anatase.
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