Journal of Inorganic Materials >
N-doped TiO2 Immobilized on Nickel Foam and Its Photocatalytic Performance for Formaldehyde Degradation under Visible Light
Received date: 2009-11-10
Revised date: 2009-12-17
Online published: 2010-06-10
N-doped nanosized TiO2 powders were directly synthesized by a low temperature hydrothermal method with tetrabutyl titanate as Ti resource and urea as nitrogen resource, and then immobilized on nickel foam substrates. N-doped TiO2 powders were characterized by XRD, SEM, TEM, UV-Vis and XPS. The photocatalytic decomposition property of N-doped nanosized TiO2 to formaldehyde under visible light was investigated. The result shows that nitrogen is incorporated into the TiO2 lattice, so the lattice constants of TiO2 increase (a and c). Nitrogen partially substitutes for oxygen and titanium in the TiO2 lattice. The chemical statuses of N can be assigned to Ti?N?Ti and O-N-O in the TiO2 lattice. N-doped TiO2 may be described as Ti1-yO2-xNx+y-TiO2-xNx with its absorbing boundary wavelength red shifting to 600nm. N-doped nanosized TiO2 powders can be uniformly dispersed on nickel foam substrates, showing a high photocatalytic decomposition activity to formaldehyde under visible light.
SU Li-Cheng, CHU Cheng-Lin, DONG Yin-Sheng, SHENG Xiao-Bo, LIN Ping-Hua, Chu Paul K . N-doped TiO2 Immobilized on Nickel Foam and Its Photocatalytic Performance for Formaldehyde Degradation under Visible Light[J]. Journal of Inorganic Materials, 2010 , 25(7) : 753 -757 . DOI: 10.3724/SP.J.1077.2010.00753
[1]Asahi R, Morikawa T, Ohwaki T, et al. Visible-light photocatalysis in nitrogen-doped titanium oxides. Science, 2001, 293(5528): 269-271.
[2]Irie H, Watanabe Y, Hashimato K. Nitrogen-concentration dependence on photocatatlytic activity of TiO2-xNx powders. Physical Chemical B, 2003, 107(23): 5483-5486.
[3]Peng F, Cai L f, Huang L, et al. Preparation of nitrogen-doped titanium dioxide with visible-light photocatalytic activity using a facile hydrothermal method. Journal of Physics and Chemistry of Solids, 2008, 69(7): 1657-1664.
[4]Burda C, Lou Y b, Chen X b, et al. Enhanced nitrogen doping in TiO2 nanoparticles. Nano letters, 2003, 8(3): 1049-1051.
[5]胡 海, 肖文浚, 袁 坚, 等(HU Hai, et al). 泡沫镍负载TiO2和TiO2/Al2O3薄膜的光催化性能研究. 无机材料学报(Journal of Inorganic Materials), 2007, 22(2): 363-368.
[6]凌基薇, 胡 海, 袁 坚, 等. 泡沫镍网负载TiO2薄膜的光催化特性. 上海交通大学学报, 2009, 43(5): 755-758.
[7]杨莉萍, 刘震炎, 施建伟, 等. 负载TiO2的泡沫镍网光催化降解甲醛的膜厚优化. 中国环境科学, 2007, 27(3): 404-408.
[8]Ihara T, Miyoshi M, Iriyama Y, et al. Visible-light-active titanium oxide photocatalyst realized by an oxygen-deficient structure and by nitrogen doping. Applied Catalysis B: Environmental, 2003, 42(4): 403-409.
[9]Song K C, Kang Y. Preparation of high surface area tin oxide powders by a homogeneous precipitation method. Materials Letters, 2000, 42(5): 283-289.
[10]Sathish M, Viswanathan B, Viswanath R P. Synthesis, characterization, electronic structure, and photocatalytic activity of nitrogen- doped TiO2 nanocatalyst. Chemical Material, 2005, 17(25): 6349-6353.
[11]Chen X B, Burda C. Photoelectron spectroscopic investigation of nitrogen-doped titania nanoparticles. Physical Chemical B, 2004, 108(40): 15446-15449.
[12]费贤翔, 熊予营. 具有可见光活性的纳米掺氮TiO2制备和表征. 功能材料与器件学报, 2005, 11(2): 223-227.
[13]Huang D G, Liao S J, Quan S Q, et al. Synthesis and characterization of visible light responsive N-TiO2 mixed crystal by a modified hydrothermal process. Journal of Non-Crystalline Solids, 2008, 354(33): 3965-3972.
[14]包 南, 孙 剑, 张 锋, 等(BAO Nan, et al). N掺杂TiO2纳米晶: 水热-热分解法制备及光催化活性. 无机化学学报(Chinese J. Inorg. Chem.), 2007, 23(1): 101-108.
[15]Zhang Z C, Goodall B M, Morgan D J, et al. Photocatalytic activities of N-doped nano-titanias and titanium nitride. Journal of the European Ceramic Society, 2009, 29(11): 2343-2353.
[16]Li H X, Li J X, Huo Y N. Highly active TiO2N photocatalysts prepared by treating TiO2 precursors in NH3/ethanol fluid under supercritical conditions. J. Physical Chemical B, 2006, 110(4): 1559-1565.
[17]Sakthivel S, Janczarek M, Kisch H. Visible light activity and photoelectrochemical properties of nitrogen-doped TiO2. Physical Chemical B, 2004, 108(50): 19384-19387.
[18]Wong M S, Chou H P, Yang T S. Reactively sputtered N-doped titanium oxide films as visible-light photocatalyst. Thin Solid Films, 2006, 494(1/2): 244-249.
[19]Wan L, Li J F, Feng J Y. Improved optical response and photocatalysis for N-doped titaniumoxide (TiO2) films prepared by oxidation of TiN. Applied Surface Science, 2007, 253(10): 4764-4767.
/
| 〈 |
|
〉 |
