Effect of Hydrogen Treatment on the Catalytic Activity of Iron Oxide Based Materials Dispersed Over Activated Carbon: Investigations Toward Hydrogen Peroxide Decomposition

被引：37

作者：

Castro, Cinthia S. ^{[1
]}

Oliveira, Luiz C. A. ^{[1
]}

Guerreiro, Mario C. ^{[1
]}

机构：

[1] Univ Fed Lavras, Dept Quim, BR-37200000 Lavras, MG, Brazil

来源：

CATALYSIS LETTERS | 2009年 / 133卷 / 1-2期

关键词：

Activated carbon; Iron oxide; H2O2; decomposition; Hydrogen treatment; OXIDATION; H2O2; DEGRADATION; QUINOLINE; WATER; CONTAMINANTS; REACTIVITY; NB;

D O I：

10.1007/s10562-009-0167-9

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 effect of hydrogen treatment (400 A degrees C/1 h) on the catalytic properties toward H2O2 decomposition of iron oxide based materials dispersed over activated carbon were investigated. Two different supports were evaluated: a commercial activated carbon (ACM) and an activated carbon produced from spent coffee grounds (ACR). The catalysts were characterized using XRD, SEM, N-2-sorption, XPS and TPR analysis. The main results suggest the formation of composites with high surface area (> 800 m(2) g(-1)) and the hydrogen treatment resulted in a great increase in the catalytic activity, probably as a function of the reduced iron species (Fe2+ and Fe-0) formed with the treatment. Moreover, the catalyst prepared with ACR showed to be more active than that prepared from ACM.

引用

页码：41 / 48

页数：8

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