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Preparation and characteristics of TiO2 nanotube catalysts used in hybrid photocatalysis/membrane process

Paper ID Volume ID Publish Year Pages File Format Full-Text
50084 46779 2012 5 PDF Available
Title
Preparation and characteristics of TiO2 nanotube catalysts used in hybrid photocatalysis/membrane process
Abstract

A novel photocatalytic membrane reactor (PMR) system was reported by the usage of TiO2 nanotube (TNT) photocatalysts and microfiltration (MF) membranes. TNTs were prepared by hydrothermal method and the optimal preparation conditions were determined. Results showed that prepared TNT had good photocatalytic activity which was 2.5 times higher than that of P25 in reactive brilliant blue X-BR degradation. Due to its one-dimensional structure, the membrane flux in TNT separation was also 4–5 times higher than P25 no matter what kind of membrane was applied. Surface morphology analysis predicted less membrane fouling and better recycling in TNT PMR system.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A novel photocatalytic membrane reactor system was set up by TNTs and MF membranes. ► TNTs prepared by hydrothermal method held pohotocatalytic activity 2.5 times higher than P25. ► Photodegradation rate of TNT under nature condition (pH = 4.46) reached as high as 99.07%. ► TNT caused less membrane fouling and provided better recycling than P25 in PMR system.

Keywords
Titanium dioxide nanotubes; Photocatalysis; Microfiltration membrane; Photocatalytic membrane reactor
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Preparation and characteristics of TiO2 nanotube catalysts used in hybrid photocatalysis/membrane process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 18, 10 February 2012, Pages 76–80
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