Effect of Different Calcination Temperatures on the Structural and Photocatalytic Performance of Bi-TiO2/SBA-15 | Zendy

Jing Ma | Zendy; Jia Chu | Zendy; Liangsheng Qiang | Zendy; Juanqin Xue | Zendy

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Effect of Different Calcination Temperatures on the Structural and Photocatalytic Performance of Bi-TiO₂/SBA-15

Author(s) -

Jing Ma,

Jia Chu,

Liangsheng Qiang,

Juanqin Xue

Publication year - 2013

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2013/875456

Subject(s) - calcination , photocatalysis , rhodamine b , x ray photoelectron spectroscopy , materials science , raman spectroscopy , aqueous solution , nuclear chemistry , decomposition , analytical chemistry (journal) , chemical engineering , catalysis , chemistry , chromatography , organic chemistry , optics , physics , engineering

The new novel material Bi-TiO2/SBA-15 was synthesized by an easy wet impregnation method. A combination of XRD, XPS, Raman, N2 adsorption-desorption isotherm measurement, TEM, and solid state UV-Vis spectroscopy has been used to characterize the Bi-TiO2/SBA-15 material. It was found that SBA-15 retained the ordered hexagonal mesostructure after incorporation of TiO2 and Bi. The photodecomposition of rhodamine B (RhB) in aqueous medium was selected to evaluate the photocatalytic performance of Bi-TiO2/SBA-15 under visible light irradiation (λ≥420 nm). The experiment results indicated that Bi-TiO2/SBA-15 exhibited higher photocatalytic activities than pure TiO2 and Bi2O3. The influences of calcination temperature were studied. It strongly influenced the activity of the samples. The sample calcined at 550°C shows the highest photocatalytic activity in the decomposition of RhB under visible light. The catalyst preserved almost its initial photocatalytic activity after six reuses

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