Imaging Science and Photochemistry ›› 2015, Vol. 33 ›› Issue (5): 383-393.DOI: 10.7517/j.issn.1674-0475.2015.05.383

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Preparation and Photocatalytic Study of TiO2-SiO2 Macroporous Film

YANG Xiaolong, PAN Yue, XING Mingyang, ZHANG Jinlong   

  1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. China
  • Received:2015-03-12 Revised:2015-04-22 Online:2015-09-16 Published:2015-09-16


In this work, the TiO2-SiO2 sol was prepared by a modified sol-gel method, which exhibited the anatase and small crystal size. And then the macroporous TiO2-SiO2 film was synthesized by using polystyrene spheres as the template and TiO2-SiO2 sol as the precursor, via the spinning-coating combined with calcination technology. We investigated the impact of calcination temperature, Ti/Si ratio and concentration of sol on the microstructure and photocatalytic activity of macroporous TiO2-SiO2 film. We also studied the UV/solar light photcoatalytic activity for the degradation of rhodamin B over the composite film after a vacuum activation treatment. The RAMAN,DRS,SEM,EPR, and other characterizations were used to study a serials of TiO2-SiO2 films, as a result, the as-prepared film showed a good transparent property, excellent adhesion and photcatalytic activity.

Key words: macroporous films, titania, polystyrene spheres, vacuum activation, photocatalysis