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Photodecolorization of methyl orange by yttrium incorporated TiO2 supported ZSM-5

Paper ID Volume ID Publish Year Pages File Format Full-Text
48083 46491 2008 11 PDF Available
Title
Photodecolorization of methyl orange by yttrium incorporated TiO2 supported ZSM-5
Abstract

Yttrium incorporated TiO2 supported ZSM-5 catalysts were prepared by a sol–gel method and an ion exchange process. The structural features of the photocatalysts were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX) and surface area (BET) measurements. XRD analysis supplied information about the crystalline sizes of TiO2 and Y2O3 nanoparticles. AFM and SEM images revealed obvious variations in the surface morphology of raw ZSM-5 after TiO2 and Y2O3 loading. The photocatalytic performances of the supported catalysts were evaluated for the decolorization of methyl orange (MO) solution under UV irradiation. The results showed that yttrium incorporation enhanced the decolorization rate percentage of MO. The effects of TiO2 content, yttrium ion content, catalyst amount, pH and initial MO concentration were examined as operational parameters. The photocatalytic reactions followed pseudo-first-order kinetics and discussed in terms of Langmuir–Hinshelwood model. The repeatability of photocatalytic activity was also tested. A plausible mechanism is proposed for the route of degradation.

Keywords
Supported TiO2; Yttrium ion; ZSM-5; Photocatalytic decolorization; Methyl orange
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Photodecolorization of methyl orange by yttrium incorporated TiO2 supported ZSM-5
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 85, Issues 1–2, 17 December 2008, Pages 92–102
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