Cloth catalysts for water denitrification II. Removal of nitrates using Pd-Cu supported on glass fibers

Citation
Y. Matatov-meytal et al., Cloth catalysts for water denitrification II. Removal of nitrates using Pd-Cu supported on glass fibers, APP CATAL B, 31(4), 2001, pp. 233-240
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN journal
09263373 → ACNP
Volume
31
Issue
4
Year of publication
2001
Pages
233 - 240
Database
ISI
SICI code
0926-3373(20010604)31:4<233:CCFWDI>2.0.ZU;2-Q
Abstract
The use of glass fibers in the form of woven cloth (GFC), as a new type of catalytic support, was studied far the reduction of aqueous nitrate solutio ns using a Pd/Cu-GFC catalyst. The activity (per gram Pd) and selectivity t o nitrogen were found to be comparable with those found for Pd-Cu catalysts supported on the other carriers. The maximal initial removal activity was found for a catalyst with a Pd/(Pd + Cu) ratio of 0.81. The corresponding a ctivity was 0.7 mmol min(-1) (g(Pd))(-1), and the selectivity was 97 mol% a t 25 degreesC and pH 6.5 for initial nitrate concentration of 100 mg l(-1). The selectivity to nitrogen declined at high conversions of nitrate and hi gh pH. (C) 2001 Elsevier Science B.V. All rights reserved.