Preparation Conditions and Properties of Porous SiO2-Doped TiO2 Photocatalyst

Hong Li; Qian Li; Wen Jie Zhang

doi:10.4028/www.scientific.net/AMR.214.40

Paper Titles

Preparation of Aramid Mica Composite Insulation Material
p.16

Synthesis, Structural and Electrochemical Characterization of Honeycomb Supported Pt-Pd-Rh Composite Catalyst for the Decomposition of Gaseous Ammonia to Nitrogen
p.21

A Pilot Study on the Relationship between Mechanical and Electrical Loss Tangents of Glass Powder Reinforced Epoxy Composites Post-Cured in Microwaves
p.26

Multiphysics Fully-Coupled Modelling of the Electromagnetic Compression of Steel Tubes
p.31

Preparation Conditions and Properties of Porous SiO₂-Doped TiO₂ Photocatalyst
p.40

Experimental Analysis of Dynamic Yield Strength of Material and Research on its Numerical Method
p.45

Supplier Selection Model Based on Two Stage Signal Game and Reputation Mechanism
p.50

J-Integral Evaluation in Two Dimensional Interacting Cracks
p.55

A Study of Creative Artworks for Picture Books Colored Using Mixed Media and Computer-Aided Design
p.60

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 214Preparation Conditions and Properties of Porous...

Preparation Conditions and Properties of Porous SiO₂-Doped TiO₂ Photocatalyst

Abstract:

A porous SiO2-doped TiO2 photocatalyst was prepared through co-sol-gel method used for photocatalytic degradation of methyl orange. PEG1000 was used as a template. Photocatalytic degradation was conducted after adsorption equilibrium to identify the contribution of both adsorption and photocatalytic degradation. While PEG addition ranged from 0.25 g to 1.0 g, the optimum addition amount was at 0.5 g. The degradation rate increased with increasing calcination temperature in the range from 400 to 500 oC, and then it decreased with still increasing temperature. The photocatalyst calcinated at 500 oC for 4 h could degrade 29.2% of the initial methyl orange in 30 min. Nearly 96.5% of decoloration of the initial methyl orange was removed in 100 min under UV light irradiation with the existence of the porous SiO2-doped TiO2.