Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

被引：179

作者：

Sano, T ^{[1
]}

Negishi, N ^{[1
]}

Koike, K ^{[1
]}

Takeuchi, K ^{[1
]}

Matsuzawa, S ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol AIST, Inst Environm Management Technol, Photoenergy Applicat Grp, Tsukuba, Ibaraki 3058569, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 03期

关键词：

D O I：

10.1039/b311444a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An anatase type of TiO2 photocatalyst containing N atoms was synthesized by a new technique using a complex of Ti4+ with a nitrogen-containing ligand as a precursor. The TiO2-like photocatalyst prepared by calcination of a Ti4+-bipyridine complex exhibited high photocatalytic activity for NOx removal under both ultraviolet and visible-light (lambda < 645 nm) illumination. The doping of the N atom into the anatase lattice, which is expected from UV-VIS spectroscopy, XRD, and XPS, is inferred as an important factor for the visible light absorption and NOx removal activity under a wide range of visible light illumination. The bipyridine ligand acted as the source of N and C atoms and additionally inhibited sintering of the photocatalyst during heat treatment.

引用

页码：380 / 384

页数：5

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