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ChemEngineering 2017, 1(2), 8; doi:10.3390/chemengineering1020008

Photocatalytic Decolorization of Dye with Self-Dye-Sensitization under Fluorescent Light Irradiation

1
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu 514-8507, Japan
2
Mie Global Environment Center for Education & Research, Mie University, Tsu 514-8507, Japan
*
Author to whom correspondence should be addressed.
Received: 10 August 2017 / Revised: 16 September 2017 / Accepted: 30 September 2017 / Published: 5 October 2017
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Abstract

A dye-sensitization technique was applied to effective catalysts—TiO2 and ZnO—under fluorescent light irradiation for Orange II (OII) and Methyl Orange (MO) degradations. Treatments were carried out at different time periods using 20 mg of catalysts and 30 mL of 5 mg/L of OII and MO. The degradation efficiency of OII and MO increased with increasing irradiation time under irradiation of fluorescent light. The photocatalytic activity of ZnO nanoparticles was better compared with that of TiO2 for MO; and the ZnO activity was the same as TiO2 for OII photodegradation. Kinetic behavior was evaluated in terms of the Langmuir–Hinshelwood model (pseudo-first order kinetic). The possible mechanism of photodegradation under fluorescent light was discussed. View Full-Text
Keywords: photocatalytic degradation; fluorescent light; self-dye-sensitization; ZnO; TiO2 photocatalytic degradation; fluorescent light; self-dye-sensitization; ZnO; TiO2
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Molla, M.A.I.; Tateishi, I.; Furukawa, M.; Katsumata, H.; Suzuki, T.; Kaneco, S. Photocatalytic Decolorization of Dye with Self-Dye-Sensitization under Fluorescent Light Irradiation. ChemEngineering 2017, 1, 8.

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