Low temperature catalytic adsorption of SO2 on activated carbon

被引：41

作者：

Lopez, Diana ^{[1
]}

Buitrago, Robison ^{[1
]}

Sepulveda-Escribano, Antonio ^{[2
]}

Rodriguez-Reinoso, Francisco ^{[2
]}

Mondragon, Fanor ^{[1
]}

机构：

[1] Univ Antioquia, Inst Chem, Medellin 1226, Colombia

[2] Univ Alicante, Lab Mat Avanzados, E-03080 Alicante, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 39期

关键词：

D O I：

10.1021/jp802809c

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：

Catalytic adsorption of SO2 on activated carbon materials provides an appropriate alternative for the control of low concentration emissions of this air pollutant. The surface complexes formed upon SO2 adsorption at 30 degrees C were studied by X-ray photoelectron spectroscopy (XPS) and temperature-programmed desorption (TPD). The effect of the addition of O-2 and the presence of copper as catalyst were studied. Copper assisted the oxygen transfer to the carbon matrix. For the Cu-impregnated carbon sample, the presence of O-2 favored SO2 adsorption by increasing the breakthrough time, the adsorption capacity and the formation of sulfur and oxygen complexes of higher thermal stabilities, which mainly desorb as SO2 and CO2.

引用

页码：15335 / 15340

页数：6

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