TY - JOUR
T1 - Synthesis and characterization of nitrogen and phosphate codoped titanium dioxide with excellent visible-light photocatalytic activity
AU - Guo, Siyao
AU - Han, Song
AU - Mao, Haifeng
AU - Wu, Congcong
AU - Jia, Lichao
AU - Chi, Bo
AU - Pu, Jian
AU - Jian, Li
N1 - Funding Information:
The present work is supported by Fundamental Research Funds for the Central Universities ( DL11EB02 ), the New Century Excellent Talents in University ( NCET-10-0277 ), the Scientific and Projects of Department of Transportation (2009,31,80,00,088) and National Natural Science Foundation of China ( 211,76,047 ). The authors would like to thank Materials Characterization Center of Huazhong University of Science and Technology for samples measurement assistance.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/12/15
Y1 - 2012/12/15
N2 - Visible-light active (N, P)-codoped TiO 2 (NP-TiO 2) nanoparticles are prepared by one step hydrothermal method and characterized by XPS, XRD, SEM, FT-IR and UV-vis spectrum. Based on the XPS analysis, the chemical state of N in TiO 2 is identified as N-Ti-O in the anatase TiO 2 lattice, while P exists in a pentavalent-oxidation state (P 5+) or as PO43- group coordinating in TiO 2. The result confirms that the doping of phosphate would affect the crystallite size and structure of anatase. UV-vis spectra demonstrates that NP-TiO 2 could shift the absorption edge of titania to the visible-light region effectively, which could increase the visible-light photocatalytic activity. The total degradation of methylene blue (MB) and rhodamine B (RhB) is significantly faster on NP-TiO 2 samples than that on N-doped and NS-codoped TiO 2 under visible-light irradiation.
AB - Visible-light active (N, P)-codoped TiO 2 (NP-TiO 2) nanoparticles are prepared by one step hydrothermal method and characterized by XPS, XRD, SEM, FT-IR and UV-vis spectrum. Based on the XPS analysis, the chemical state of N in TiO 2 is identified as N-Ti-O in the anatase TiO 2 lattice, while P exists in a pentavalent-oxidation state (P 5+) or as PO43- group coordinating in TiO 2. The result confirms that the doping of phosphate would affect the crystallite size and structure of anatase. UV-vis spectra demonstrates that NP-TiO 2 could shift the absorption edge of titania to the visible-light region effectively, which could increase the visible-light photocatalytic activity. The total degradation of methylene blue (MB) and rhodamine B (RhB) is significantly faster on NP-TiO 2 samples than that on N-doped and NS-codoped TiO 2 under visible-light irradiation.
UR - https://www.scopus.com/pages/publications/84865818329
UR - https://www.scopus.com/pages/publications/84865818329#tab=citedBy
U2 - 10.1016/j.jallcom.2012.07.128
DO - 10.1016/j.jallcom.2012.07.128
M3 - Article
AN - SCOPUS:84865818329
SN - 0925-8388
VL - 544
SP - 50
EP - 54
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -