Prastomo, Niki and Zakaria, Nor Hana binti and Kawamura, Go and Muto, Hiroyuki and Sakai, Mototsugu and Matsuda, Atsunori (2011) High surface area BaZrO3 photocatalyst prepared by base-hot-water treatment. Journal of the European Ceramic Society, 31 (14). pp. 2699-2705. ISSN 0955-2219
Full text not available from this repository.Abstract
Barium zirconate (BaZrO3) nanoparticles have been prepared by modified sol–gel route. Low temperature process of base-hot-water treatment (BHWT) was conducted to obtain high surface area BaZrO3. The treatments were carried out at 90 °C and at pH 14 with various concentrations of NaOH solution. Single phase nanocrystalline perovskite structure of BaZrO3 powders was successfully obtained by immersing the BaZrO3 precursor into hot-basic condition of 1 M NaOH solution for 1 h and consecutively calcined at 1000 °C for 2 h. BaZrO3 powders with BHWT showed surface area of 18.4 m2/g which is nearly 8 times larger than those of the powders without BHWT. Photocatalytic activities of BaZrO3 powders upon bleaching of methylene blue in an aqueous solution under UV light irradiation were enhanced by the increment of their surface area.
| Item Type: | Article |
|---|---|
| Keywords: | Barium zirconate; Base-hot-water treatment; Photocatalytic activity; Precursors-organic; Powders-chemical preparation |
| Subjects: | 500 Science and Mathematic > 500 Science > 507 Education, Research, Related Topics |
| Divisions: | Faculty of Engineering & Informatics > Engineering Physics |
| Depositing User: | Administrator UMN Library |
| Date Deposited: | 09 Dec 2021 16:51 |
| Last Modified: | 09 Dec 2021 16:51 |
| URI: | https://kc.umn.ac.id/id/eprint/19442 |
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