Photocatalytic Degradation of Dyes Using TiO2-Supported Diatomite

Jun Xiong Lin; Lan Wang; Chong Sun

doi:10.4028/www.scientific.net/AMR.441.568

Paper Titles

Degradation Kinetics of Reactive Brilliant Red X-3B Dye by UV/Mn²⁺/H₂O₂/Micro-Aeration
p.549

Electrochemical Treatment of Simulated Dye Wastewater
p.555

Adsorption of Basic Dye in Aqueous Solution by Mesoporous Carbon Materials
p.559

All-Solid-State Zn²⁺-Selective Electrodes for Wastewater Measurements
p.564

Photocatalytic Degradation of Dyes Using TiO₂-Supported Diatomite
p.568

Application of Modified Chitosan for Treatment of Silk Degumming Wastewater
p.573

Advanced Treatment of Textile Wastewater for Reuse by Ozonation-Biological and Membrane Processes
p.578

Comparative Study on the Treatment of Biologically Treated Textile Effluent by Nanofiltration and Reverse Osmosis for Water Reuse
p.584

Textile Wastewater Treatment Using Combined Process of Biological Wriggle Bed and Ozone Biological Aerated Filter
p.589

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 441Photocatalytic Degradation of Dyes Using...

Photocatalytic Degradation of Dyes Using TiO₂-Supported Diatomite

Abstract:

TiO₂/Diatomite composite photocatalysts with different TiO₂ content were prepared by sol-gel technology. Their structures were characterized by XRD and FTIR analysis, and their photocatalytic performance was examined by decolorizing of two dyes and one real textile wastewater. The influencing factors on the photocatalytic performance were also discussed under different dye concentrations and pH values. The results showed that the optimum preparation process is that the content of TiO₂ in the composite photocatalysts is 37.5% and the calcined condition is at 500 °C for 1 hour. Moreover, the dye removal of 200mg/L Rhodamine B by the TiO₂-supported diatomite was about 76.9%, and the COD (Chemical Oxygen Demand) removal of one textile wastewater was 60.9%. This composite catalyst exhibited high photocatalytic activity for the removal of dyes selected as model pollutant in aqueous solution.

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Periodical:

Advanced Materials Research (Volume 441)

Pages:

568-572

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.441.568

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Online since:

January 2012

Authors:

Jun Xiong Lin, Lan Wang, Chong Sun

Keywords:

Dye, Photocatalytic Activity, TiO₂/Diatomite

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