Efficient gas phase photodecomposition of acetone by Ru-doped Titania

被引：42

作者：

Houskova, Vendula ^{[1
]}

Stengl, Vaclav ^{[1
]}

Bakardjieva, Snejana ^{[1
]}

Murafa, Nataliya ^{[1
]}

Tyrpekl, Vaclav ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Inorgan Chem, Husinec Rez 25068, Czech Republic

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2009年 / 89卷 / 3-4期

关键词：

TiO2; Doped; RuO2; Urea; Photocatalytic activity; HOMOGENEOUS PRECIPITATION; PHOTOCATALYTIC PROPERTIES; NANOCRYSTALLINE TITANIA; HYDROGEN EVOLUTION; ANATASE; ELECTRODES; OXIDATION; WATER;

D O I：

10.1016/j.apcatb.2009.01.023

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：

Nanocrystalline titania particles doped with ruthenium oxide have been prepared by homogenous hydrolysis of TiOSO4 in aqueous solutions in the presence of urea. The synthesized particles were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM), Selected Area Electron Diffraction (SAED) and surface area (BET) and porosity determination (BJH). The photocatalytic activity of Ru-doped titania samples was determined in the gas phase by decomposition of acetone during irradiation at 365 nm and 400 nm. The Ru-doped titania samples demonstrated enhanced photocatalytic activity under visible light. Ruthenium oxide causes the anatase to rutile transformation to occur at lower temperatures and decreasing of hand-gap energy of Ru-doped samples. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：613 / 619

页数：7

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