Citation: LI Yuan-Yang, YAN Liang-Hong, JIANG Bo. Simple Way to Enhance the Photocatalytic Activity and Application in Antireflective Coatings for Amorphous TiO₂[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(9): 1701-1709. doi: 10.11862/CJIC.2018.205 shu

Simple Way to Enhance the Photocatalytic Activity and Application in Antireflective Coatings for Amorphous TiO₂

1.
Key Laboratory of Green Chemistry&Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
2.
Research Center of Laser Fusion, China Academy of Engineering Physical, Mianyang, Sichuan 621900, China

Corresponding author: YAN Liang-Hong, yanlianghong@126.com JIANG Bo, jiangbo@scu.edu.cn
Received Date: 22 March 2018
Revised Date: 12 June 2018

Figures(5)

Small-sized amorphous TiO₂ nanoparticles were prepared and deposited on mesoporous SiO₂ support via sol-gel method at room temperature. This structure greatly increases the surface areas of the amorphous TiO₂ particles, which facilitates the enhancement of photocatalytic activity and preserved the optical performance of the films in the same time. The resultant SiO₂&amorphous-TiO₂ films afford glasses a maximum transmittance of 99.97% and show a much higher photocatalytic activity than the monolayer amorphous TiO₂ film. Surprisingly, the SiO₂&amorphous-TiO₂ even shows a higher photocatalytic activity than the counterparts with anatase phase. This higher photocatalytic activity is attributed to abundant surface hydroxyl groups and relative loose structure of the amorphous TiO₂ nanoparticles, which can help enhance photocatalytic activity through reducing recombination of electron-hole pairs and increase the migration rates of the photoexcited electrons and holes, respectively. And these characteristics may be preferable to crystal structure for enhancing photocatalytic activity. Meanwhile, the coating process is very simple, low cost and conducted at room temperature, which is feasible for polymer substrates.
- sol-gel process,
- amorphous titanates,
- silicates,
- thin films,
- antireflection,
- photocatalysis
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Simple Way to Enhance the Photocatalytic Activity and Application in Antireflective Coatings for Amorphous TiO2

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通讯作者: 陈斌, bchen63@163.com

Simple Way to Enhance the Photocatalytic Activity and Application in Antireflective Coatings for Amorphous TiO₂