期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 160, 期 1, 页码 208-212出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2008.02.103
关键词
TiO2; Nanoparticle; Compounding bismuth; Charge separation; Photocatalysis
资金
- National Nature Science Foundation of China [20431030, 20501007]
- New Century Excellent Talents [NCET-2007-0259]
- Ministry of Education of China [207027]
- Science Foundation for Excellent Youth of Heilongjiang Province [JC200701]
- Education Bureau of Heilongjiang province of China [11511283]
TiO2 nanoparticles coin pounded with different amounts of bismuth were prepared by a sol-gel method, and the effects of compounding bismuth on the phase transformation, photoinduced charge separation and photocatalytic activity for degrading rhodamine B solution were mainly investigated, along with enhancement mechanism of photocatalytic activity of TiO2 nanoparticles by compounding bismuth species. It can be confirmed that, by means of X-ray diffraction (XRD), surface photovoltage spectroscopy (SPS) and ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), compounding bismuth can extend the optical response, and effectively inhibit the phase transformation process from anatase to rutile, consequently greatly improving the anatase crystallinity so as to promote the photoinduced charge separation. These factors are responsible for the increase in the photocatalytic activity of TiO2 compounded with an appropriate amount of bismuth species. (C) 2008 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