Photocatalytic degradation of toluene on SiO2/TiO2 photocatalyst in a fluidized bed reactor

S. W. Yao; H. P. Kuo

doi:10.1016/j.proeng.2015.01.254

Photocatalytic degradation of toluene on SiO₂/TiO₂ photocatalyst in a fluidized bed reactor

S. W. Yao, H. P. Kuo^*

^*Corresponding author for this work

Department of Chemical and Materials Engineering

Chang Gung University

Research output: Contribution to journal › Conference article › peer-review

23 Scopus citations

Abstract

Silica supported titania photocatalyst, SiO₂/TiO₂, is prepared by the sol-gel doping method using titanium tetra isopropoxide as the precursor and nitride acid as the acid catalyst. The structure and physical properties of SiO₂/TiO₂ particles are characterized by SEM/EDS, XRD, and BET specific surface area measurement. When a small amount of TiO₂ coated onto the silica gel surfaces, the BET specific surface area of the SiO₂/TiO₂ particles increases. However, when the ratio of SiO₂/TiO₂ precursor decreases, TiO₂ fills the pores of silica gel and the BET specific surface area of SiO₂/TiO₂ particle decreases. The as-prepared SiO₂/TiO₂ particles are used as the fluidizing media in a fluidized bed photoreactor and toluene is degraded therein. The results show that the contaminated stream containing toluene with the concentration as high as 1000 ppm can be continuously degraded in the fluidized bed photoreactor. The continuous toluene removal efficiency is around 30%-40% at steady state.

Original language	English
Pages (from-to)	1254-1260
Number of pages	7
Journal	Procedia Engineering
Volume	102
DOIs	https://doi.org/10.1016/j.proeng.2015.01.254
State	Published - 2015
Event	7th World Congress on Particle Technology, WCPT 2014 - Beijing, China Duration: 19 05 2014 → 22 05 2014

Bibliographical note

Publisher Copyright:
© 2015 The Authors.

Keywords

Sol-Gel
fludized bed reactor
photocatalysis
toluene degradation

Access to Document

10.1016/j.proeng.2015.01.254

Cite this

@article{374a60731ce5445b902027b34a830d2a,

title = "Photocatalytic degradation of toluene on SiO2/TiO2 photocatalyst in a fluidized bed reactor",

abstract = "Silica supported titania photocatalyst, SiO2/TiO2, is prepared by the sol-gel doping method using titanium tetra isopropoxide as the precursor and nitride acid as the acid catalyst. The structure and physical properties of SiO2/TiO2 particles are characterized by SEM/EDS, XRD, and BET specific surface area measurement. When a small amount of TiO2 coated onto the silica gel surfaces, the BET specific surface area of the SiO2/TiO2 particles increases. However, when the ratio of SiO2/TiO2 precursor decreases, TiO2 fills the pores of silica gel and the BET specific surface area of SiO2/TiO2 particle decreases. The as-prepared SiO2/TiO2 particles are used as the fluidizing media in a fluidized bed photoreactor and toluene is degraded therein. The results show that the contaminated stream containing toluene with the concentration as high as 1000 ppm can be continuously degraded in the fluidized bed photoreactor. The continuous toluene removal efficiency is around 30%-40% at steady state.",

keywords = "Sol-Gel, fludized bed reactor, photocatalysis, toluene degradation",

author = "Yao, {S. W.} and Kuo, {H. P.}",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.; 7th World Congress on Particle Technology, WCPT 2014 ; Conference date: 19-05-2014 Through 22-05-2014",

year = "2015",

doi = "10.1016/j.proeng.2015.01.254",

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volume = "102",

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journal = "Procedia Engineering",

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TY - JOUR

T1 - Photocatalytic degradation of toluene on SiO2/TiO2 photocatalyst in a fluidized bed reactor

AU - Yao, S. W.

AU - Kuo, H. P.

PY - 2015

Y1 - 2015

N2 - Silica supported titania photocatalyst, SiO2/TiO2, is prepared by the sol-gel doping method using titanium tetra isopropoxide as the precursor and nitride acid as the acid catalyst. The structure and physical properties of SiO2/TiO2 particles are characterized by SEM/EDS, XRD, and BET specific surface area measurement. When a small amount of TiO2 coated onto the silica gel surfaces, the BET specific surface area of the SiO2/TiO2 particles increases. However, when the ratio of SiO2/TiO2 precursor decreases, TiO2 fills the pores of silica gel and the BET specific surface area of SiO2/TiO2 particle decreases. The as-prepared SiO2/TiO2 particles are used as the fluidizing media in a fluidized bed photoreactor and toluene is degraded therein. The results show that the contaminated stream containing toluene with the concentration as high as 1000 ppm can be continuously degraded in the fluidized bed photoreactor. The continuous toluene removal efficiency is around 30%-40% at steady state.

AB - Silica supported titania photocatalyst, SiO2/TiO2, is prepared by the sol-gel doping method using titanium tetra isopropoxide as the precursor and nitride acid as the acid catalyst. The structure and physical properties of SiO2/TiO2 particles are characterized by SEM/EDS, XRD, and BET specific surface area measurement. When a small amount of TiO2 coated onto the silica gel surfaces, the BET specific surface area of the SiO2/TiO2 particles increases. However, when the ratio of SiO2/TiO2 precursor decreases, TiO2 fills the pores of silica gel and the BET specific surface area of SiO2/TiO2 particle decreases. The as-prepared SiO2/TiO2 particles are used as the fluidizing media in a fluidized bed photoreactor and toluene is degraded therein. The results show that the contaminated stream containing toluene with the concentration as high as 1000 ppm can be continuously degraded in the fluidized bed photoreactor. The continuous toluene removal efficiency is around 30%-40% at steady state.

KW - Sol-Gel

KW - fludized bed reactor

KW - photocatalysis

KW - toluene degradation

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DO - 10.1016/j.proeng.2015.01.254

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T2 - 7th World Congress on Particle Technology, WCPT 2014

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ER -