NDLI: Photocatalytic degradation of the AO7 under visible light with Bi-doped SrTiO3

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Photocatalytic degradation of the AO7 under visible light with Bi-doped SrTiO3

Content Provider	Scilit
Author	Nunes, M. J. Lopes, A. Pacheco, M. J. Ciríaco, L. Fiadeiro, P. T.
Copyright Year	2020
Description	Bismuth doped $SrTiO_{3}$ samples, $Sr_{1}-_{x}Bi_{x}TiO_{3}$ (x=0, 0.05, 0.1 and 0.3), prepared via solid state reaction, were immobilized on Ni-foam and utilized in the photocatalytic degradation of the dye Acid Orange 7 (AO7) under visible light. The Bi-doped samples (x=0.1 and 0.3) presented very good photocatalytic activity - 83 and 77% absorbance removal (484 nm), respectively, after 7-h assays. Since all perovskite samples presented band gap energies pointing to materials with catalytic activity only in the UV (≥3.35 eV), the good photocatalytic activity under visible light can only be explained by the occurrence of a secondary phase for x≥0.1, identified as $Bi_{4}Ti_{3}O_{12}$. Thus, $Bi_{4}Ti_{3}O_{12}$ and mixtures of $Bi_{4}Ti_{3}O_{12}$ with $SrTiO_{3}$ and $Bi_{4}Ti_{3}O_{12}$ with $Sr_{0.95}Bi_{0.05}TiO_{3}$ were prepared and assessed for photocatalytic activity under visible light. Only $Bi_{4}Ti_{3}O_{12}+Sr_{0.95}Bi_{0.05}TiO_{3}$ mixture showed an increase in AO7 absorbance removal of 10% after 7-h assay when compared with the performance of both oxides separately. Book Name: Textiles, Identity and Innovation: In Touch
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9780429286872-53&type=chapterpdf
Ending Page	355
Page Count	7
Starting Page	349
DOI	10.1201/9780429286872-53
Language	English
Publisher	Informa UK Limited
Publisher Date	2020-05-19
Access Restriction	Open
Subject Keyword	Book Name: Textiles, Identity and Innovation: In Touch Visible Light Ao7 Photocatalytic Bi4ti3o12 Sr0.95bi0.05tio3 Srtio3 Bismuth Doped
Content Type	Text
Resource Type	Chapter

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