PREPARATION AND CHARACTERIZATION OF SrO-Bi2O3 COMPLEX OXIDE-Reference-Cited by-同舟云学术

PREPARATION AND CHARACTERIZATION OF SrO-Bi2O3 COMPLEX OXIDE

Published:2012-06 Issue:02 Volume:05 Page:1260015
ISSN:1793-6047
Container-title:Functional Materials Letters
language:en
Short-container-title:Funct. Mater. Lett.

Author:

OBUKURO YUKI¹,OBATA KENJI²³,MATSUSHIMA SHIGENORI²³,ARAI MASAO⁴,KOBAYASHI KENKICHIRO⁵

Affiliation:

1. Advanced Course of Materials Science and Chemical Engineering, Kitakyushu National College of Technology, 5-20-1 Shii, Kokuraminami-ku, Kitakyushu 802-0985, Japan

2. Department of Materials Science and Chemical Engineering, Kitakyushu National College of Technology, 5-20-1 Shii, Kokuraminami-ku, Kitakyushu 802-0985, Japan

3. Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu Science and Research Park, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196, Japan

4. Computational Materials Science Unit (CMSU), National Institute of Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan

5. Department of Materials Science, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8011, Japan

Abstract

The Sr 2 Bi 2 O 5 powders were prepared by a malonic acid complex method and a solid-state reaction. These powders were characterized by X-ray diffraction, UV-vis diffuse reflectance spectra and specific surface area measurements. In a malonic acid complex method, the Sr 2 Bi 2 O 5 phase of high purity was obtained at 700°C in air and its specific surface area was calculated to be 2.74 m2/g. From UV-vis measurements, it was confirmed that Sr 2 Bi 2 O 5 is a direct band gap material and its optical band gap is ca. 3.1 eV. The first-principles energy band calculation showed that the energy bands of Sr 2 Bi 2 O 5 crystal have a wide dispersion near the valence band maximum and the conduction band minimum. The Sr 2 Bi 2 O 5 powders showed a distinct photocatalytic decomposition of methylene blue under visible light irradiation (a wavelength ≥ 420 nm).

Publisher

World Scientific Pub Co Pte Lt

Subject

General Materials Science

Link

https://www.worldscientific.com/doi/pdf/10.1142/S1793604712600156

Reference14 articles.

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2. Efficient Photocatalytic Decomposition of Organic Contaminants over CaBi2O4 under Visible-Light Irradiation

3. Photocatalytic Oxidation of NOx under Visible LED Light Irradiation over Nitrogen-Doped Titania Particles with Iron or Platinum Loading

4. MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS OF NITROGEN-DOPED TITANIA NANOPARTICLES

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