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Citation: JIN Hua-Feng, LI Wen-Ge, XIANG Ji-Ming, TANG Ji-Yu. Nanometer Particles of Fe³⁺/TiO₂/SiO₂ Complex: Synthesis and Usefulness in Photocatalytic Degradation of Nitrite[J]. Chinese Journal of Applied Chemistry, ;2001, 18(8): 636-639. shu

Nanometer Particles of Fe³⁺/TiO₂/SiO₂ Complex: Synthesis and Usefulness in Photocatalytic Degradation of Nitrite

1.
a Department of Chemistry, Ankang Teacher's College, Ankang 725000;
2.
b Department of Material Science and Engineering, Qinghua University, Beijing

Received Date: 5 December 2000
Available Online: 27 March 2001
Fund Project: 陕西省教委自然科学专项科研基金资助项目(97JK041) (97JK041)

Fe³⁺/TiO₂/SiO₂ complex particles with doped Fe³⁺ were prepared by the sol-gel method. XRD, BET, UV-vis techniques were used for their characterization and studying the influences on the heterogeneous photocatalytic degradation of nitrite. The UV light photocatalytic activity of the complex particles were found higher than those of TiO₂/SiO₂.The mose active catalyst was Fe³⁺ /TiO₂/SiO₂,k(Fe³⁺)=1.5%,m(Ti):m(Si)=2:1. It is a low crystlline anatase. The doped Fe³⁺ increased the particle size of titanium oxide semiconductor and lowers its stability, enhancing the light photocatalytic activity for NO₂^- degradation.
- Fe³⁺/TiO₂/SiO₂,
- TiO₂/SiO₂,
- complex particle,
- photocatalytic degradation,
- NO₂^-
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Nanometer Particles of Fe3+/TiO2/SiO2 Complex: Synthesis and Usefulness in Photocatalytic Degradation of Nitrite

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Nanometer Particles of Fe³⁺/TiO₂/SiO₂ Complex: Synthesis and Usefulness in Photocatalytic Degradation of Nitrite