Effect of the mixing rate on the morphology and photocatalytic activity of ZnO powders prepared by a precipitation method

被引：12

作者：

Intarasuwan, Khanitta ^{[1
,2
]}

Amornpitoksuk, Pongsaton ^{[1
,2
]}

Suwanboon, Sumetha ^{[3
]}

机构：

[1] Prince Songkla Univ, Dept Chem, Hat Yai 90112, Songkhla, Thailand

[2] Prince Songkla Univ, Fac Sci, Ctr Excellence Innovat Chem, Hat Yai 90112, Songkhla, Thailand

[3] Prince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand

来源：

ADVANCED POWDER TECHNOLOGY | 2013年 / 24卷 / 06期

关键词：

ZnO; Precipitation method; Photocatalytic activity; Mixing rate; OPTICAL-PROPERTIES; PARTICLES; GROWTH; PH;

D O I：

10.1016/j.apt.2013.02.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The urchin-like shape of ZnO powders was prepared by mixing of Zn2+ and NaOH solutions at various mixing rates. In this work, epsilon-Zn(OH)(2) was the first precipitant that was subsequently transformed to ZnO in the alkaline medium during heating. The size of the urchin-like shape of the ZnO powder decreased with a decrease of the mixing rate. The large urchin-like shape also had a large diameter of its hexagonal facet (0001) and showed the highest photocatalytic degradative activity on methylene blue. (C) 2013 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：999 / 1005

页数：7

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