Photocatalytic Degradation of Reactive Brilliant Red X-3B Based on Microwave Electrodeless Lamp and Long Lifetime Immobilized TiO<sub>2</sub>

ISSN: 2212-7186 (Online)
ISSN: 2212-7178 (Print)


Volume 1, 3 Issues, 2014






Current Environmental Engineering

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Editor-in-Chief:
Jong Moon Park
Department of Chemical Engineering
School of Environmental Engineering
Pohang University of Science and Technology
Pohang, Kyungbuk
Korea


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Photocatalytic Degradation of Reactive Brilliant Red X-3B Based on Microwave Electrodeless Lamp and Long Lifetime Immobilized TiO2

Author(s): Gong Cheng, Di Xu, Zhongduo Xiong, Dongsheng Xia and Qinfu Zeng

Affiliation: Shenzhen Academy of Environment and Science, Shenzhen 518001, P.R. China.

Abstract

A novel photocatalytic system (MEL/TiO2/QS) based on microwave electrodeless lamp (MEL) and TiO2 films supported on quartz sheets (TiO2/QS) was established for high photocatalytic efficiency and long catalyst life. The results showed that the degradation efficiency for reactive brilliant red X-3B in MEL/TiO2/QS was equally as that in a suspended TiO2 system. Furthermore, under the microwave irradiation, the TiO2/QS had high catalytic activity after successively used 10 times without additional separation and regeneration. The pseudo-first-order kinetics was employed to describe decomposition of the dye and reaction rates at different initial dye concentrations, followed by the Langmuir– Hinshelwood kinetic model. The mineralization process and final products were also analyzed by total organic carbon (TOC) and ion chromatography (IC). The research might be useful in the commercial scale application of low cost and high efficiency photocatalytic process.

Keywords: Catalyst regeneration, microwave electrodeless lamp, reactive brilliant red X-3B, TiO2 films.

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Article Details

Volume: 1
Issue Number: 1
First Page: 23
Last Page: 29
Page Count: 7
DOI: 10.2174/2212717801666140307001805
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