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- W2022690430 abstract "Abstract The nanometer particles of TiO 2 and Fe/TiO 2 with a high photo-catalytic activity were obtained by the solvothermal method. The TiO 2 and Fe/TiO 2 particles were characterized with XRD, SEM, DLS, TG–DSC, and UV-Vis spectroscopy. The TiO 2 and Fe/TiO 2 particles exhibited an uniform anatase structure with particle size below 50 nm after synthesis at 300 °C for 1 h without any treatments. Attained Fe/TiO 2 particles had a higher hydrophilic property compared with TiO 2 , and they absorbed wavelength above 350 nm. In photodecomposition of methanol, the methanol was decomposed to CO, HCHO, 2H 2 O, and H 2 as intermediates. Finally, these were transferred into 2CO 2 , 2H 2 O, and 2H 2 . While, when H 2 O was added as a reactant with methanol, the intermediates were CO 2 , HCOOH, H 2 O, and 3H 2 , and then these were converted to 2CO 2 , H 2 O, and 4H 2 . In particular, the methanol conversion enhanced about 20% with 10-mol% H 2 O addition over Fe/TiO 2 catalyst compared with pure TiO 2 . On the other hand, for Fe/TiO 2 , the anatase structure was stable in 10-mol% H 2 O addition as a reactant, but it was transferred into the rutile structure with an increase of added H 2 O amount. In particular, in this study, it was found that the anatase structural change is generated by H 2 O addition and, as the result, the partially structural change into rutile type could be better effected to photo-degradation for methanol over Fe/TiO 2 . In addition, we could confirm that the added H 2 O molecule on the photoreaction over Fe/TiO 2 plays a role of supplication of OH radical." @default.
- W2022690430 created "2016-06-24" @default.
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- W2022690430 date "2003-04-18" @default.
- W2022690430 modified "2023-10-18" @default.
- W2022690430 title "Synthesis of Fe/TiO2 photocatalyst with nanometer size by solvothermal method and the effect of H2O addition on structural stability and photodecomposition of methanol" @default.
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- W2022690430 doi "https://doi.org/10.1016/s1381-1169(02)00586-1" @default.
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