The Preparation and Properties of SiO2-Al2O3 Composite Fluoride Removal Agent

De Gui Li; Fang Shu Gan; Ming Qin; Shu Hui Liu; Hui Xiang Ouyang; Bin He

doi:10.4028/www.scientific.net/MSF.809-810.471

Paper Titles

Electrolytic Hydriding of La(Fe, Si)₁₃ Based Materials and its Magnetocaloric Effect
p.443

Effects of Duration on Wear Rate of a PTFE Composite
p.451

Microstructural Control of Al/Si Composites by Area-Selectively Liquid-Phase-Sintering Method
p.459

Low-Temperature Co-Fired Behavior of ZMT Dielectric Ceramic and NZC Ferrite Composites
p.464

The Preparation and Properties of SiO₂-Al₂O₃ Composite Fluoride Removal Agent
p.471

The Effect of Phosphatic Composite on Magnesium Phosphate Cement Performance
p.477

Graphene Oxide/Cement Composites for Electromagnetic Interference Shielding
p.485

The Research for Microwave Modified Vermiculite Adsorption of Zn²⁺
p.493

Micro Patterning, Tension Force and the Growth of Osteoblasts
p.500

HomeMaterials Science ForumMaterials Science Forum Vols. 809-810The Preparation and Properties of SiO2-Al2O3...

The Preparation and Properties of SiO₂-Al₂O₃ Composite Fluoride Removal Agent

Abstract:

The fluoride removal agents of SiO₂-Al₂O₃ spherical particles were prepared using aluminum powder and sodium silicate as the main raw material by sol-gel method. The samples were characterized by XRD analysis method, and several influencing factors of fluoride removal performances had been studied, such as the content of SiO₂, calcinations temperature, calcinations time, pH values, etc. The results showed that the adsorption capacity of SiO₂-Al₂O₃ increased with the content of SiO₂ increasing in the range of 0 to 12%. The best calcination temperature is 500 °C, and the best calcination time is 1 hour. The concentration of fluorine could reduce from 190 mg/L to 0.388 mg/L in the environment of pH 5.5 ~ 6, and the adsorption capacity could reach 9.48 mg/g, and the fluoride removal rate could reach 99%.

You might also be interested in these eBooks

2014 China Functional Materials Technology and Industry Forum

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 809-810)

Pages:

471-476

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.809-810.471

Citation:

Cite this paper

Online since:

December 2014

Authors:

De Gui Li*, Fang Shu Gan, Ming Qin, Shu Hui Liu, Hui Xiang Ouyang, Bin He

Keywords:

Fluoride Removal Agent, SiO₂-Al₂O₃, Sodium Silicate, Sol-Gel Method

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Y.M. Zhou and C.X. Yu: Ion Exchange and Adsorption, Vol. 17 (2001) No. 5, p.369. (In Chinese).

Google Scholar

[2] Z.Y. Liu and R.B. Hao: Journal of Tangshan Teachers College, Vol. 29 (2007) No. 2, p.34. (In Chinese).

Google Scholar

[3] L.J. Cai: Science & Technology of Baotou Steel (group) Corporation, Vol. 27 (2001) No. 1, p.56. (In Chinese).

Google Scholar

[4] L.W. Chen, Y.X. Zhang and L.H. Gan, et al: Laboratory Research, Vol. 20 (2001) No. 6, p.54. (In Chinese).

Google Scholar

[5] N. Chen, Y. Yan and Z.H. Hu: Journal of Wuhan University of Technology, Vol. 33 (2011) No. 2, p.37. (In Chinese).

Google Scholar

[6] A.F. Ahlstrom-Silversand and C.U.I. Odenbrand: Applied Catalysis A: general, Vol. 153 (1997) No. 1, p.157.

Google Scholar

[7] M. Niwa, N. Katada and Y. Murakami: Journal of Physical Chemistry, Vol. 94 (1990) No. 16, p.6441.

Google Scholar

[8] Z.X. Zhao, C.G. Xia and Q.J. Xue, et al: Acta Physico-Chimica Sinica, Vol. 23 (2007) No. 4, p.549. (In Chinese).

Google Scholar

[9] M. Wu: Steelmaking, Vol. 23 (2007) No. 3, p.18. (In Chinese).

Google Scholar

[10] B. Li, L.L. Shao: Inorganic Chemicals Industry, Vol. 40 (2008) No. 2, p.54. (In Chinese).

Google Scholar