Study on the Property of Silica Minerals Supported NanoTiO2

Bing Song; Shui Lin Zheng; Chun Hua Bai; Fang Hui Lu; Zhi Ming Sun; Xiao Suo Qu

doi:10.4028/www.scientific.net/MSF.743-744.681

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HomeMaterials Science ForumMaterials Science Forum Vols. 743-744Study on the Property of Silica Minerals Supported...

Study on the Property of Silica Minerals Supported NanoTiO₂

Abstract:

In the study, porous amorphous silica minerals including Porous Silicon (PS), Diatomite Filter Aid (DFA) and Opal (Op) were chosen as carriers or supports to prepare TiO₂/PS, TiO₂/DFA and TiO₂/Op composites by chemical co-precipitation method. The compound materials were characterized by SEM, TEM, and the photo-catalytic property of the prepared composites was investigated by degradation of Rhodamine B (RhB). Characterization showed that nanoTiO₂ was coated on the surface of porous amorphous silica minerals. The crystal form of TiO₂ was mainly anatase, and the size of which was nanoscale. Through comparative analysis, the photo-catalytic efficiency of TiO₂/PS composite was the best, followed by TiO₂/ DFA, and then TiO₂/Op.

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Materials Science Forum (Volumes 743-744)

Pages:

681-686

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.743-744.681

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Online since:

January 2013

Authors:

Bing Song, Shui Lin Zheng, Chun Hua Bai, Fang Hui Lu, Zhi Ming Sun, Xiao Suo Qu

Keywords:

Composite, Diatomite Filter Aid, Nano-TiO₂, OPAL, Photo-Catalytic, Silicon

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