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Non-thermal plasma-induced photocatalytic degradation of 4-chlorophenol in water [An article from: Journal of Hazardous Materials]
Book Details
Author(s)X.L. Hao, M.H. Zhou, L.C. Lei
PublisherElsevier
ISBN / ASINB000PDTYGS
ISBN-13978B000PDTYG2
MarketplaceIndia 🇮🇳
Description
This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
TiO"2 photocatalyst (P-25) (50mgL^-^1) was tentatively introduced into pulsed high-voltage discharge process for non-thermal plasma-induced photocatalytic degradation of the representative mode organic pollutant parachlorophenol (4-CP), including other compounds phenol and methyl red in water. The experimental results showed that rate constant of 4-CP degradation, energy efficiency for 4-CP removal and TOC removal with TiO"2 were obviously increased. Pulsed high-voltage discharge process with TiO"2 had a promoted effect for the degradation of these pollutants under a broad range of liquid conductivity. Furthermore, the apparent formation rates of chemically active species (e.g., ozone and hydrogen peroxide) were increased, the hydrogen peroxide formation rate from 1.10x10^-^6 to 1.50x10^-^6Ms^-^1, the ozone formation rate from 1.99x10^-^8 to 2.35x10^-^8Ms^-^1, respectively. In addition, this process had no influence on the photocatalytic properties of TiO"2. The introduction of TiO"2 photocatalyst into pulsed discharge plasma process in the utilizing of ultraviolet radiation and electric field in pulsed discharge plasma process enhanced the yields of chemically active species, which were available for highly efficient removal and mineralization of organic pollutants.
Description:
TiO"2 photocatalyst (P-25) (50mgL^-^1) was tentatively introduced into pulsed high-voltage discharge process for non-thermal plasma-induced photocatalytic degradation of the representative mode organic pollutant parachlorophenol (4-CP), including other compounds phenol and methyl red in water. The experimental results showed that rate constant of 4-CP degradation, energy efficiency for 4-CP removal and TOC removal with TiO"2 were obviously increased. Pulsed high-voltage discharge process with TiO"2 had a promoted effect for the degradation of these pollutants under a broad range of liquid conductivity. Furthermore, the apparent formation rates of chemically active species (e.g., ozone and hydrogen peroxide) were increased, the hydrogen peroxide formation rate from 1.10x10^-^6 to 1.50x10^-^6Ms^-^1, the ozone formation rate from 1.99x10^-^8 to 2.35x10^-^8Ms^-^1, respectively. In addition, this process had no influence on the photocatalytic properties of TiO"2. The introduction of TiO"2 photocatalyst into pulsed discharge plasma process in the utilizing of ultraviolet radiation and electric field in pulsed discharge plasma process enhanced the yields of chemically active species, which were available for highly efficient removal and mineralization of organic pollutants.
