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材料工程  2008 

N掺杂纳米TiO2在4-氯苯酚中的可见光催化活性及动力学研究

, PP. 39-42

Keywords: N掺杂TiO2,可见光,4-氯苯酚,动力学方程

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Abstract:

以NH4Cl为氮源,采用溶胶-凝胶法制备N掺杂纳米TiO2,以4-氯苯酚和TOC降解率为指标,考察灼烧温度、搅拌速度、溶液pH值等因素对N掺杂TiO2可见光活性及动力学方程的影响。结果表明,N掺杂TiO2对4-氯苯酚具有良好的降解作用,在灼烧温度400℃、快速搅拌、pH值为4.6下,4-氯苯酚降解率最大,在可见光辐射6h时达到87%。降解反应符合Langmuir-Hinshelwood动力学方程。

References

[1]  GOLE J L,STOUT J D,BURDA C,et al.Highly efficient formation of visible light tunable TiO2-xNx photocatalysts and their transformation at the nanoseale[J].Journal of Physical Chemistry B,2004,108(4):1230-1240.
[2]  SAKTHIVEL S,KISCH H.Photocatalytic and photoelectrochemical properties of nitrogen-doped titanium dioxide[J].Chemphyschem,2003,4(5):487-490.
[3]  MOON J,YUN C Y,CHUNG K W.et al.Photocataytic activation of TiO2 under visible light using acid red 44[J].Catalysis Today,2003,87(1-4):77-86.
[4]  VINODGOPAL K,BEDJA I,KAMAT P V.Nanostructured semiconductor films for photocatalysis photoelectrochemical behavior of SnO2/TiO2 composite systems and Its role in photocatalyric degradation of a textile azo dye[J].Chemistry of Materials.1996,8(8):2180-2187.
[5]  LIU Y,CHEN X,LI J,et al.Photocatalytic degradation of azo dyes by nitrogen-doped TiO2 nanocatalysts[J].Chemosphere,2005,61(1):11-18.
[6]  YU H,ZHENG X X,YIN Z Y,et al.Preparation of nitrogendoped TiO2 nanoparticle and its catalytic activity under visible light[J].Chemical Engineering of Chinese,2007,5(6)1802-807.

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