期刊
ULTRASONICS SONOCHEMISTRY
卷 19, 期 3, 页码 546-553出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2011.09.001
关键词
Polyphosphotungstate; Sonocatalytic; Photocatalytic; Degradation; Nanocomposite
资金
- Catalysis Division of University of Payame Noor University (PNU)
Polyoxometalates (POM) supported on zirconia, H3PW12O40/ZrO2. were prepared by incorporating polyphosphotungstate into a zirconia matrix via sol-gel technique that involving the hydrolysis of zirconium (IV) n-butoxide, Zr (n-OBu)(4), as the ZrO2 source. This insoluble and readily separable catalyst was characterized by using XRD, FT-IR, SEM, and UV diffuse reflectance spectroscopy (UV-DRS), indicating that the polyphosphotungstate was chemically attached to the zirconia supports, and primary Keggin structure remained intact. The photocatalytic and sonocatalytic activity of the supported polyphosphotungstate was tested via degradation of different dyes in aqueous solutions. The POM-ZrO2 nanocomposite showed higher photocatalytic and sonocatalytic activity than pure polyoxometalate or pure ZrO2. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据