Development of a visible-light-responsive rutile rod by site-selective modification of iron(III) ion on {1 1 1} exposed crystal faces
Development of a visible-light-responsive rutile rod by site-selective modification of iron(III) ion on {1 1 1} exposed crystal faces
复制标题
DOI：
10.1016/j.apcatb.2010.03.030
复制
发表时间：
2010-06
影响因子：
22.1
通讯作者：
N. Murakami;Asami Ono;Misa Nakamura;Toshiki Tsubota;T. Ohno
中科院分区：
文献类型：
--
作者：
N. Murakami;Asami Ono;Misa Nakamura;Toshiki Tsubota;T. Ohno
{111} exposed crystal faces of shape-controlled rutile titanium(IV) oxide (TiO2) were site-selectively modified with trivalent iron(III) (Fe3+) ions by utilizing adsorption property of iron(III)/iron(II) (Fe3+/Fe2+) ions. The rutile TiO2with site-selective modification of Fe3+ions showed high photocatalytic activity under visible-light irradiation as a result of separation of redox sites, i.e., oxidation and reduction proceed over Fe3+ions on {111} faces and the bare TiO2surface on {110} faces, respectively. Double-beam photoacoustic spectroscopic analyses suggest that the high activity of TiO2with site-selective modification of Fe3+ions is attributed to not efficient electron injection from Fe3+ions but efficient reduction by injected electrons on {110} faces.
