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- Title
A novel preparation approach and denitrification performance of TiO 2 /Fe photocatalysts.
- Authors
Liu, Yuan; Lee, Jianchao; Zhao, Yinghua; Zhang, Meijuan; Wang, Liping; Duan, Qiannan
- Abstract
Chemical vapor hydrolysis deposition (CVHD), a novel method for preparation of TiO2/Fe0is presented. In the method, tetrabutyl titanate (TBT) and sponge iron (Fes) are used as precursor and carrier, respectively. Especially, TBT was hydrolyzed slowly with the thin water vapor to create TiO2nanoparticles on the Fescarrier. The experiment showed that the optimal preparation conditions for TiO2/Fe0via CVHD were calcination temperature of 723 K and TiO2-loading amount of 7.57%. The as-prepared TiO2/Fe0catalysts were evaluated by the catalytic reaction of nitrate reduction, and exhibited a higher catalytic activity and selectivity than the similar catalysts prepared with the typical methods of sol–gel or alkoxide hydrolysis precipitation. The present results demonstrate that the selective nitrate reduction over TiO2/Fe0catalysts with HCOOH as the hole scavenger, highlighting the validity of removal of aqueous nitrate by photocatalysis.
- Subjects
CHEMICAL vapor deposition; NITRATES; PHOTOCATALYSIS; TITANIUM dioxide; SPONGE iron
- Publication
Desalination & Water Treatment, 2016, Vol 57, Issue 7, p3125
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.983984