Photocatalytic activity for hydrogen evolution of electrospun TiO2 nanofibers
Chuangchote, S; Jitputti, J; Sagawa, T; Yoshikawa, S
| HERO ID | 1053817 |
|---|---|
| In Press | No |
| Year | 2009 |
| Title | Photocatalytic activity for hydrogen evolution of electrospun TiO2 nanofibers |
| Authors | Chuangchote, S; Jitputti, J; Sagawa, T; Yoshikawa, S |
| Journal | ACS Applied Materials & Interfaces |
| Volume | 1 |
| Issue | 5 |
| Page Numbers | 1140-1143 |
| Abstract | We report herein a simple procedure for the fabrication of TiO2 nanofibers by the combination of electrospinning and sol-gel techniques by using poly(vinylpyrrolidone) (PVP), titanium(IV) butoxide, and acetylacetone in methanol as a spinning solution. TiO2 nanofibers (260-355 nm in diameter), with a bundle of nanofibrils (20-25 nm in diameters) aligned in the fiber direction, or particle-linked structures were obtained from the calcination of as-spun TiO2/PVP composite fibers at temperatures ranging from 300 to 700 degrees C. These nanofibers were utilized as photocatalysts for hydrogen evolution. The nanofiber photocatalyst calcined at 450 degrees C showed the highest activity among the TiO2 nanofibers tested such as ones prepared by the hydrothermal method and anatase nanoparticles (Ishihara ST-01). These results indicate that one-dimensional electrospun nanofibers with highly aligned bundled nanofibrils are beneficial for enhancement of the crystallinity, large surface area, and higher photocatalytic activity. |
| Doi | 10.1021/am9001474 |
| Pmid | 20355902 |
| Wosid | WOS:000268665200023 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000268665200023 |
| Is Public | Yes |
| Language Text | English |
| Keyword | TiO2; electrospinning; nanofibers; hydrogen evolution; photocatalysis |
| Is Qa | No |