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Citation: HU Liu-Jiang, LI Yi-Min, CHAI Guo-Ying. Preparation and Photocatalytic Activity of Terbium Doped TiO₂ Pillared Bentonites[J]. Chinese Journal of Applied Chemistry, ;2008, 25(5): 569-572. shu

Preparation and Photocatalytic Activity of Terbium Doped TiO₂ Pillared Bentonites

1.
Depratment of Chemistry, Shaoxing College of Arts and Sciences, Shaoxing 312000

Corresponding author: LI Yi-Min,
Received Date: 25 May 2007
Available Online: 28 September 2007
Fund Project: 浙江省自然科学基金资助项目(Y506288) (Y506288)浙江省教育厅科技项目(20050021) (20050021)

The terbium doped TiO₂ pillared bentonites (Tb-TiO₂-PILCs) were prepared with Ti(i-C₃H₇O)₄ and Tb₂O₃ as precursors by the sol-gel method.Characteristics of Tb-TiO₂-PILCs were examined with XRD and BET.Tb-TiO₂-PILCs were used as composite photocatalysts for the photocatalytic degradation of sodium pentachlorophenate (PCP-Na).The results indicate that all the pillared bentonites contain TiO₂ in the anatase phase.The photocatalytic activities of Tb-TiO₂-PILCs are superior to that of non doped TiO₂-PILC.Tb-TiO₂-PILC shows the most photocatalytic activity when the mass percent of Tb/Ti is 0.5% among all the catalysts.In addition,the experiments also illustrate that the composite photocatalysts can be easily recovered,regenerated and reused.
- TiO₂ pillared Bentonite,
- terbium,
- doped,
- photocatalytic activity,
- sodium pentachlorophenate
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Preparation and Photocatalytic Activity of Terbium Doped TiO₂ Pillared Bentonites