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
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.
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U2 - 10.1016/j.jallcom.2012.07.128
DO - 10.1016/j.jallcom.2012.07.128
M3 - Article
AN - SCOPUS:84865818329
VL - 544
SP - 50
EP - 54
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -