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A novel thin-layer photoelectrocatalytic (PEC) reactor with double-faced titania nanotube arrays electrode for effective degradation of tetracycline

Paper ID Volume ID Publish Year Pages File Format Full-Text
47259 46465 2010 7 PDF Available
Title
A novel thin-layer photoelectrocatalytic (PEC) reactor with double-faced titania nanotube arrays electrode for effective degradation of tetracycline
Abstract

A novel thin-layer photoelectrocatalytic (PEC) reactor has been developed and successfully applied to the degradation of tetracycline, a typical pharmaceutical and personal care products (PPCPs), in bulk wastewater treatment. The reactor is designed with double thin-layer in order to increase the A/V ratio (ratio of electrode area and solution volume) and improve the mass transfer as well as the photonic efficiency of the system. The efficiency of organic degradation by the new reactor is much higher in comparison with conventional PEC process under similar treatment conditions. Using 20–120 mg L−1 model tetracycline wastewater as the target organics, the PEC removal rate of tetracycline in the reactor reached 96.4–54.8% with a single-side illumination, much higher than that of conventional PEC reactor (about 80.4–14.6%) within 1 h. When the reactor was illuminated from double sides, the treatment efficiency of thin-layer reactor was doubled without increasing new electrodes. This novel reactor always keeps high quantum efficiency regardless of the different concentration levels of the organic compounds, especially superior for the treatment of high concentration solutions. Repeated experiments in the treatment of 400 mg L−1 tetracycline solution demonstrated excellent stability and reliability of the TNAs electrode.

Keywords
Thin-layer PEC reactor; Titania nanotube arrays; Tetracycline
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A novel thin-layer photoelectrocatalytic (PEC) reactor with double-faced titania nanotube arrays electrode for effective degradation of tetracycline
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 98, Issues 3–4, 1 August 2010, Pages 154–160
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us