Preparation and Properties of Nanovoid SiO2-TiO2 Phase-Boundary Photocatalysts

Abstract

Abstract: Novel phase-boundary photocatalysts were prepared by partial modification of th e surface of nanovoid SiO2-TiO2 nanoparticles with octadecyltriethoxysilan e (ODTS). Compared with TiO2 nanoparticles, the surface-alkylsilylated nanovoid SiO2-TiO2 nanoparticles showed excellent photostability and h igh photocatalytic activity for photodegradation of weak acid yellow G solution with mechanical stirring.

Key words: titanium dioxide, silica, nanovoid structure, phase-boundary, nanoparticles, photocatalysis

XU Zhanglian;WANG Sheng;WANG Tao;WANG Wei;CHEN Wenxing. Preparation and Properties of Nanovoid SiO2-TiO2 Phase-Boundary Photocatalysts[J]. Chinese Journal of Catalysis, 2008, 29(10): 987-991.

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https://www.cjcatal.com/EN/Y2008/V29/I10/987

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Preparation and Properties of Nanovoid SiO2-TiO2 Phase-Boundary Photocatalysts

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