Hydrocatalytic reduction of nitrate in aqueous solution over titania supported Pd-Au catalysts
Joint Authors
Bani al-Mufarrij, Tamarah
Hammudah, Ayman Y.
Mahmud, Sabri S.
Source
Issue
Vol. 11, Issue 1 (31 Mar. 2016), pp.26-37, 12 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2016-03-31
Country of Publication
Jordan
No. of Pages
12
Main Subjects
Topics
Abstract EN
Some Pd and / or Au containing catalysts supported on TiO2 were prepared by impregnation (I) and incipient witness (IW) methods.
These catalysts that include Au3 %/TiO2-I, Au1.5 % / TiO2-I, Au1.5 %Pd1.5 %/TiO2-I, Pd1.5 % / TiO2-I, Pd3 % / TiO2-I and Au6.0 %Pd0.2 % / TiO2 / IW were characterized by means of XRD.
The supported metal was thereby determined to have a particle size around 50 nm.
All catalysts were tested in the reduction of nitrate ions in aqueous solution and in the presence of hydrogen gas.
All tested catalysts were found to be of relatively high activity and with high dinitrogen selectivity in this respect.
Pd-Au/TiO2 catalysts were found to have high selectivity but slightly lower activity than Pd-catalysts.
Incorporation of Au into Pd catalysts has improved their selectivity.
Au1.5 %Pd1.5 % / TiO2-I produces less nitrite than Pd3 % / TiO2- I, indicating that alloying has positive effects on the reduction of nitrate.
The alloying effects were much more pronounced in the case of Au6 % Pd0.2 %/TiO2/IW where more than 87 % nitrate conversion was achieved with ~100 % dinitrogen selectivity in 30 min.
of reaction and without any detectable nitrogen fixation.
American Psychological Association (APA)
Bani al-Mufarrij, Tamarah& Hammudah, Ayman Y.& Mahmud, Sabri S.. 2016. Hydrocatalytic reduction of nitrate in aqueous solution over titania supported Pd-Au catalysts. Jordan Journal of Chemistry،Vol. 11, no. 1, pp.26-37.
https://search.emarefa.net/detail/BIM-678222
Modern Language Association (MLA)
Bani al-Mufarrij, Tamarah…[et al.]. Hydrocatalytic reduction of nitrate in aqueous solution over titania supported Pd-Au catalysts. Jordan Journal of Chemistry Vol. 11, no. 1 (Mar. 2016), pp.26-37.
https://search.emarefa.net/detail/BIM-678222
American Medical Association (AMA)
Bani al-Mufarrij, Tamarah& Hammudah, Ayman Y.& Mahmud, Sabri S.. Hydrocatalytic reduction of nitrate in aqueous solution over titania supported Pd-Au catalysts. Jordan Journal of Chemistry. 2016. Vol. 11, no. 1, pp.26-37.
https://search.emarefa.net/detail/BIM-678222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 35-37
Record ID
BIM-678222