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Preparation, characterization and photocatalytic activity of TiO2–ZrO2 binary oxide nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
46416 46439 2012 10 PDF Available
Title
Preparation, characterization and photocatalytic activity of TiO2–ZrO2 binary oxide nanoparticles
Abstract

TiO2–ZrO2 binary oxide catalysts were successfully prepared by a solid state reaction. The interaction between TiO2 and ZrO2 affected the photocatalytic efficiency of mixture. 50%TiO2–ZrO2 photocatalyst exhibited much higher photocatalytic activity than pure TiO2 and the standard Degussa TiO2 P-25 in the degradation of phenol under UV irradiation. The profound effect of binary oxide catalyst for phenol degradation is generally considered due to the high surface area, small particle size, anatase phase and high monoclinic phase of ZrO2 content, and the presence of more surface OH groups than that of the pure TiO2 and ZrO2 photocatalyst. A natural pH of 5 is favorable for the photodegradation of phenol by 50TiO2–ZrO2 solid state dispersion (SSD) and 90% TOC removal can be achieved in 90 min. Monoclinic form of ZrO2 is found to be more effective for photodegradation. The catalytic activity was affected by the preparation method. The observed photodegradation activity for phenol follows the order 50%TiO2–ZrO2 (solid state dispersion) >50%TiO2–ZrO2 (impregnation (IMP)) >50%TiO2–ZrO2 (sol–gel (SG)).

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► TiO2–ZrO2 binary oxide nanoparticles as a photocatalyst for enhancing of the activity. ► The different catalyst preparation method and morphology effect on the photocatalytic degradation reaction. ► The solid state dispersion for photocatalysis.

Keywords
Photocatalysis; Phenol; ZrO2; TiO2; UV irradiation; Characterization
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Preparation, characterization and photocatalytic activity of TiO2–ZrO2 binary oxide nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 115–116, 5 April 2012, Pages 149–158
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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
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