Novel method of screening the oxidation and reduction abilities of photocatalytic materials

被引：9

作者：

Katayama, K. ^{[1
]}

Takeda, Y. ^{[1
]}

Shimaoka, K. ^{[1
]}

Yoshida, K. ^{[1
]}

Shimizu, R. ^{[1
]}

Ishiwata, T. ^{[1
]}

Nakamura, A. ^{[1
]}

Kuwahara, S. ^{[1
]}

Mase, A. ^{[2
]}

Sugita, T. ^{[2
]}

Mori, M. ^{[2
]}

机构：

[1] Chuo Univ, Dept Appl Phys, Bunkyo Ku, Tokyo 1128656, Japan

[2] Gunma Univ, Grad Sch Engn, Kiryu, Gunma 3768515, Japan

来源：

ANALYST | 2014年 / 139卷 / 08期

关键词：

TITANIUM-DIOXIDE; DOPED TIO2; NITROBENZENE; DEGRADATION; ALCOHOLS; OXIDE; QUINALDINES; SELECTIVITY; KINETICS;

D O I：

10.1039/c3an02167j

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two analytical methods for the evaluation of photocatalytic oxidation and reduction abilities were developed using a photocatalytic microreactor; one is product analysis and the other is reaction rate analysis. Two simple organic conversion reactions were selected for the oxidation and reduction. Since the reactions were one-to-one conversions from the reactant species to the product species, the product analysis was simply performed using gas chromatography, and the reactions were monitored in situ in the photocatalytic microreactor using the UV absorption spectra. The partial oxidation and reduction abilities for each functional group can be judged from the yield and selectivity, and the corresponding reaction rate, while the total oxidation ability can be judged from the conversion. We demonstrated the application of these methods for several kinds of visible light photocatalysts.

引用

页码：1953 / 1959

页数：7

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