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Magnetic Field Under The Action Of Phenol Photocatalytic Oxidation Reaction

Posted on:2005-08-05Degree:MasterType:Thesis
Country:ChinaCandidate:W Z WangFull Text:PDF
GTID:2191360122497508Subject:Chemical processes
Abstract/Summary:PDF Full Text Request
The effect of magnetic field on the oxidation of phenol solution with UV/Fenton reagent and Photo-catalytic degradation of phenol by using titanium dioxide were investigated. The enhancement of 10% phenol conversion and 7% COD removal was achieved after 5min magnetization before UV irradiation, at 400ml/min air flow, 100mm/s liquid flow rate through the magnetic field. Effect of magnetic field on TOC removal was not detected under current test condition. Through kinetic analysis, it is shown that magnetic field effect increased the reaction constant.Photo-catalytic degradation of phenol solution by using titanium dioxide prepared with hydrolysis Tetra-n-butly titanate was studied with different kinds of light sources. The photo-catalytic activities of the prepared samples were evaluated by measuring the phenol conversion. Results indicated that the solar is more applicable for photo-catalytic reaction than fluorescence. The 25% phenol conversion was achieved after 90min of reaction time. Analyzing the mechanism of photons attaching the catalyst particles and spectrum of the light sources, it could be confirmed that a mount N and C doped can greatly enhance light adsorption range of titanium dioxide, which make it possible that degrades organic under solar ray.
Keywords/Search Tags:magnetic field effect, oxidation, Fenton reagent, phenol, titanium dioxide, degradation
PDF Full Text Request
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