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Structured fibrous carbon-based catalysts for continuous nitrate removal from natural water

Paper ID Volume ID Publish Year Pages File Format Full-Text
46141 46430 2012 8 PDF Available
Title
Structured fibrous carbon-based catalysts for continuous nitrate removal from natural water
Abstract

Bimetallic (Pd–Cu, Pd–Sn) nanoparticles supported on structured fibrous carbons (activated carbon fibers and carbon nanofibers grown on sintered metal fibers) were tested in nitrate removal of natural polluted water by hydrogen (a batch and continuous mode). Dependence of the activity/selectivity on catalyst chemical composition, promoter nature and metal particle size was studied. Sn-modified Pd nanoparticles showed higher N2 selectivity as compared to Cu-modified ones. The structured (Pd–Sn) nanoparticles supported on carbon nanofibers grown on Inconel sintered metal fibers demonstrated the best catalytic performance in an open flow reactor, providing optimal hydrodynamics properties.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights▸ Bimetallic (Pd–Cu, Pd–Sn) supported nanoparticles were used for water denitrification. ▸ The catalysts were tested in both batch and continuous modes with natural water. ▸ The mesoporous CNF/SMF support allows avoiding internal diffusion limitations. ▸ (Pd–Cu) nanoparticles are probably alloyed, (Pd–Sn) nanoparticles have a core–shell structure. ▸ (Pd–Sn) catalysts are higher N2 selective as compared to (Pd–Cu) catalysts.

Keywords
Nitrate removal; Structured fibrous carbon-based catalysts; Bimetallic; Nanofibers; Nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 123–124, 23 July 2012, Pages 221–228
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us