A Novel TiO<sub> 2</sub> Combined Pulsed Diaphragm Discharge System for Phenol Degradation

DUAN Jianjin (段剑金); HU Jue (胡觉); XU Lin (许林); WEN Yuanbin (温元斌); ZHANG Chao (张超); MENG Yuedong (孟月东); ZHANG Chengxu (张呈旭)

doi:10.1088/1009-0630/17/4/08

Plasma Science and Technology > 2015 > 17(4): 303-308. > DOI: 10.1088/1009-0630/17/4/08

DUAN Jianjin (段剑金), HU Jue (胡觉), XU Lin (许林), WEN Yuanbin (温元斌), ZHANG Chao (张超), MENG Yuedong (孟月东), ZHANG Chengxu (张呈旭). A Novel TiO₂ Combined Pulsed Diaphragm Discharge System for Phenol Degradation[J]. Plasma Science and Technology, 2015, 17(4): 303-308. DOI: 10.1088/1009-0630/17/4/08

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A Novel TiO₂ Combined Pulsed Diaphragm Discharge System for Phenol Degradation

1 School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China 2 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

Funds: supported by National Natural Science Foundation of China (Nos. 11205202, 21203204 and 11175214) and National Natural Science Foundation of Anhui Province (No. 1308085QA09)

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Received Date: July 13, 2014

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Abstract

Abstract

A synergistic photocatalysis combined pulsed diaphragm discharge (PDD) system with TiO₂ nanofilm deposited on the surface of quartz diaphragm is developed for the first time for phenol degradation in an aqueous solution. It is observed that the decomposition efficiency of phenol in the TiO₂ combined PDD system is higher than that of the single PDD system under the same conditions, indicating a successful collaboration between the photocatalysis and the plasma decomposition in the present system. Analysis of the solution’s pH value confirms this collaboration and further reveals that the photocatalytic enhancement effect of phenol degradation is strong at a relatively low supplied voltage. The present TiO ₂ combined PDD system exhibits improved efficiencies of pollutant degradation and energy utilization, suggesting a good candidate for wastewater treatment.
- pulsed diaphragm discharge,
- TiO₂ photocatalysis,
- degradation efficiency,
- en ergy efficiency,
- phenol

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