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Citation: SONG Kuan-Xiu, YAN Yu-Qing, YAN Xiu-Ru, NIE Jian-Ming. Preparation of Granular CeO₂/SiO₂ and Its Adsorptivity Towards F^-[J]. Chinese Journal of Applied Chemistry, ;2003, 20(6): 586-589. shu

Preparation of Granular CeO₂/SiO₂ and Its Adsorptivity Towards F^-

1.
Department of Chemistry, Tianjin Univeisity, Tianjin 300072

Corresponding author: SONG Kuan-Xiu,
Received Date: 9 October 2002
Available Online: 29 December 2002
Fund Project: 天津市自然科学基金资助项目(953606811) (953606811)

Granular CeO₂/SiO₂ capable of absorbing fluorine regents has been prepared by impregnation method followed by calcination.The samples are characterized by DTA-TG,XRD and IR and the F^- adsorbi-lity measurements.The adsorptivity of CeO₂/SiO₂ tow ards F^- is decreased with increase in calcination temperature in the range of 400 to 800℃.The isothermal adsorption of F^- on CeO₂/SiO₂ conforms to Freundlich equation.CeO₂ in CeO₂/SiO₂ sample obtained from calcination at 400℃ appeared to be a crystalline.
- CeO₂/SiO₂,
- fluorine adsorbing reagent
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Preparation of Granular CeO2/SiO2 and Its Adsorptivity Towards F-

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通讯作者: 陈斌, bchen63@163.com

Preparation of Granular CeO₂/SiO₂ and Its Adsorptivity Towards F^-