수소생산을 위한 광촉매인 TiO2에 대한 연구와 최근 동향

소개글

수소생산을 위한 광촉매인 TiO2에 대한 연구와 최근 동향에 관한 발표ppt자료입니다.

목차

1. Hygrogen economy

2. Mechanism of TiO2 Photocatalytic H2 production

3. TiO2 modification techniques to enhance H2 production

4. Conclusion

본문내용

TiO2 modification techniques

Recombination rate control

Recombination of electron/hole pairs
Addition of organic compound as electron donors (sactificial reagent or hole scavengers)
Adding electron donors + photo-generated VB holes
 photocatalytic electron/ hole seperation
Electron doners
-hydrocarbon or pollutant
decomposition

Addition of inorganic ion (IO3- /I-, S2-/SO32-, Ce4+/Ce3+)
IO3- : electron acceptor I- : electron donor
The combination of anatase and rutile shows a higher hydrogen production rate under the mediation I--IO3- pairs

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