Photocatalytic reduction of high pressure carbon dioxide using TiO2 powders with a positive hole scavenger

被引：132

作者：

Kaneco, S ^{[1
]}

Shimizu, Y ^{[1
]}

Ohta, K ^{[1
]}

Mizuno, T ^{[1
]}

机构：

[1] Mie Univ, Fac Engn, Dept Chem Mat, Tsu, Mie 514, Japan

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 115卷 / 03期

关键词：

photocatalytic reduction; high pressure carbon dioxide; titanium dioxide; positive hole scavenger; methane;

D O I：

10.1016/S1010-6030(98)00274-3

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：

The photocatalytic reduction of high pressure CO2 using TiO2 powders with a positive hole scavenger has been reported. The TiO2 powders suspended in iso-propyl alcohol solution were irradiated with a Xe lamp. The main reduction product from CO, by photocatalytic reduction was methane. Iso-propyl alcohol acted as the positive hole scavenger. Under the optimum experimental conditions, 1.3 mu mol.(g-Ti)(-1) of methane was obtained by the photochemical reduction of high pressure CO2, corresponding to 0.43 mu mol (g-Ti)(-1) h(-1) of the formation rate. The CO2-reduction system developed may become of practical interest for the efficient CO2-conversion and fixation system, storage of solar energy and the production of raw materials for the photochemical industry. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：223 / 226

页数：4

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