X hits on this document

211 views

0 shares

0 downloads

0 comments

14 / 90

Photocatalysts

F Polycrystalline TiO2 is the most used photocatalyst due to his (photo)stability, non toxicity, and cheapness. The anatase phase is generally the most photoactive allotropic phase.

F Other semiconductors (ZnO, WO3, CdS, Fe2O3, ecc.) show lower photoactivity or problems linked to their non stability and anodic corrosion under irradiation.

F Liquid-solid or gas-solid interfaces play an important role on the determination of reaction mechanism, quantum yield and deactivation of the photocatalyst. The presence of water can influence the photocatalytic process.

F Several applications of photocatalysis are present nowadays. Purification of water and air, films of TiO2 and so on. Some examples commercially available are reported in the following.

Document info
Document views211
Page views211
Page last viewedWed Dec 07 11:18:00 UTC 2016
Pages90
Paragraphs864
Words5893

Comments