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Photocatalysis of TiO_2 Doped in Electrospun Polyacrylonitrile Nanofiber Mats

CHEN Chao et al (College of Environmental Science and Engineering,Donghua University,Shanghai 201620)  
This study aimed to conduct photocatalytic degradation of phenol in simulation wastewater with nano titanium dioxide(TiO2) embedded in PAN nanofiber mats which were frabricated by electrospinning method.The result shows that the 5% TiO2/PAN nanofiber mat had the highest efficiency in phenol degradation,and the efficiency of the photocatalytic degradation of phenol were 51.1%,87.5%,99.6% and 100%,respectively for phenol concentration 100,50,20 and 10 mg/L and the photocatalysis reaction can be expressed as first-order kinetics.At 20 mg/L phenol concentration,the mat still kept its degradation efficiency of phenol 87.4% after 5 times reused.
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