Enhanced Photocatalytic Properties of TiO2 Nanobelts via In Situ Doping of C and Fe
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- Enhanced Photocatalytic Properties of TiO2 Nanobelts via In Situ Doping of C and Fe
- Nguyen, Thi Quynh Hoa; Lee, Zonghoon; Kim, Eui-Tae
- Co-doped; Fe content; Fe doping; Fe precursor; In-situ; In-situ doping; Metal catalyst; Photo-catalytic; Photocatalytic efficiency; Photocatalytic property; Photocatalytic reactivity; Self-doped; Si (001) substrate; Sublimation temperature; TiO; UV- and; Visible light; Visible-light photocatalysis
- Issue Date
- ELECTROCHEMICAL SOC INC
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.159, no.2, pp.K42 - K45
- Highly efficient photocatalytic C:Fe:TiO2 nanobelts, in which C and Fe were in-situ co-doped, were synthesized on Si (001) substrates without the use of any metal catalysts at 510 degrees C using simple and low-cost metallorganic chemical vapor deposition (MOCVD). Residual C, a by-product of MOCVD reaction, was utilized effectively to be self-doped in TiO2 for visible-light photocatalysis. Moreover, both UV and visible-light photocatalytic reactivities of the nanobelts were enhanced significantly with the deliberately in-situ doped Fe. The Fe doping content was reliably controlled by varying the sublimation temperature of the Fe precursor. The visible-light photocatalytic efficiency shows a maximum at a Fe content of 0.9 atom%.
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