Nitrate reduction in water catalysed by Pd-Cu on different supports

被引：86

作者：

Soares, Olivia Salome G. P. ^{[1
]}

Orfao, Jose J. M. ^{[1
]}

Pereira, Manuel Fernando R. ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Engn Quim, LCM,Lab Assoc LSRE LCM, P-4200465 Oporto, Portugal

来源：

DESALINATION | 2011年 / 279卷 / 1-3期

关键词：

Nitrate reduction; Metal oxides; Activated carbon; Carbon nanotubes; Pd-Cu; PALLADIUM-BASED CATALYSTS; PT-CU; BIMETALLIC CATALYSTS; ACTIVATED CARBON; SELECTIVE HYDROGENATION; TOTAL OXIDATION; COPPER; REMOVAL; NITRITE; DENITRIFICATION;

D O I：

10.1016/j.desal.2011.06.037

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Screening tests were carried out in order to study the influence of the support in the performance of Pd monometallic and Pd-Cu bimetallic catalysts for the reduction of nitrate in water. Several metal oxides, as well as metal oxides and activated carbon or carbon nanotube composites were assessed as supports. The catalysts were prepared and tested under the same operation conditions. It was observed that supports play an important role in the catalytic performance and in some cases are directly involved in the reaction mechanism. The Pd-Cu catalysts supported on titanium dioxide and on the composite containing carbon nanotubes and titanium dioxide present the highest conversions, while those supported on ceria materials are the most selective to nitrogen. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：367 / 374

页数：8

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