TY - JOUR
T1 - Photocatalytic degradation of toluene on SiO2/TiO2 photocatalyst in a fluidized bed reactor
AU - Yao, S. W.
AU - Kuo, H. P.
N1 - Publisher Copyright:
© 2015 The Authors.
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
UR - http://www.scopus.com/inward/record.url?scp=84948423491&partnerID=8YFLogxK
U2 - 10.1016/j.proeng.2015.01.254
DO - 10.1016/j.proeng.2015.01.254
M3 - 会议文章
AN - SCOPUS:84948423491
SN - 1877-7058
VL - 102
SP - 1254
EP - 1260
JO - Procedia Engineering
JF - Procedia Engineering
T2 - 7th World Congress on Particle Technology, WCPT 2014
Y2 - 19 May 2014 through 22 May 2014
ER -