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Title: | Hydrothermal synthesis, characterization, photocatalytic activity and dye-sensitized solar cell performance of mesoporous anatase TiO2 nanopowders |
Authors: | Pavasupree, Sorapong Jitputti, Jaturong Ngamsinlapasathian, Supachai Yoshikawa, Susumu |
Keywords: | nanostructures ceramics oxides sol-gel chemistry catalytic properties |
Issue Date: | 2008 |
Publisher: | PERGAMON-ELSEVIER SCIENCE LTD |
Abstract: | Mesoporous anatase TiO2 nanopowder was synthesized by hydrothermal method at 130 C for 12 h. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), HRTEM, and Brunauer-Emmett-Teller (BET) surface area. The as-synthesized sample with narrow pore size distribution had average pore diameter about 3-4 nm. The specific BET surface area of the as-synthesized sample was about 193 m(2)/g. Mesoporous anatase TiO2 nanopowders (prepared by this study) showed higher photocatalytic activity than the nanorods TiO2, nanofibers TiO2 mesoporous TiO2, and commercial TiO2 nanoparticles (P-25, JRC-01, and JRC-03). The solar energy conversion efficiency (n) of the cell using the mesoporous anatase TiO2 was about 6.30% with the short-circuit current density (Jsc) of 13.28 mA/cm(2), the open-circuit voltage (Voc) of 0.702 V and the fill factor (ff) of 0.676; while n of the cell using P-25 reached 5.82% with Jsc of 12.74 mA/cm(2), Voc of 0.704 V and ff of 0.649. (c) 2007 Elsevier Ltd. All rights reserved. |
URI: | http://www.repository.rmutt.ac.th/dspace/handle/123456789/386 |
ISSN: | 0025-5408 |
Appears in Collections: | บทความ (Article) |
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Hydrothermal synthesis.pdf | Hydrothermal synthesis, characterization, photocatalytic activity and dye-sensitized solar cell performance of mesoporous anatase TiO2 nanopowders | 159.84 kB | Adobe PDF | View/Open |
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