Synthesis of room temperature bismuth oxide and its photocatalytic activity

被引：34

作者：

Iyyapushpam, S. ^{[1
]}

Nishanthi, S. T. ^{[1
]}

Padiyan, D. Pathinettam ^{[1
]}

机构：

[1] Manonmaniam Sundaranar Univ, Dept Phys, Tirunelveli 627012, Tamil Nadu, India

来源：

MATERIALS LETTERS | 2012年 / 86卷

关键词：

Nanocrystalline materials; Structural; X-ray diffraction; Monoclinic Bi2O3; Photocatalytic degradation; NANOPARTICLES;

D O I：

10.1016/j.matlet.2012.07.015

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

A simple room temperature chemical route is selected for the preparation of phase pure bismuth oxide (Bi2O3) without applying any post heat treatment. The phase pure form of Bi2O3 is confirmed from X-ray diffraction. The surface morphology of the powder is observed by a scanning electron microscope and it reveals that the powder consists of agglomerates. The photocatalytic activity of Bi2O3 is evaluated by photocatalytic decolorization of methyl orange aqueous solution for 2 h. The crystallite size dependence of degradation is confirmed by annealing the sample at two different temperatures (200 and 600 degrees C) for 2 h. The photocatalytic degradation property of Bi2O3 varies with the crystallite size. The degradation percentage of MeO using Bi2O3 as catalyst are 76%, 52% and 24% for the as-prepared and the annealed sample at 200 and 60 degrees C respectively. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：25 / 27

页数：3

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