Journal ArticleDOI
Enhancement Mechanism of Heterogeneous Catalytic Ozonation by Cordierite-Supported Copper for the Degradation of Nitrobenzene in Aqueous Solution
TLDR
The investigation of the enhancement mechanism confirms that the modification by loading Cu causes changes of density of surface hydroxyl groups, pH(PZC), and /pH - pH(ZC)/, resulting in the acceleration initiation of *OH which can promote the degradation of nitrobenzene.Abstract:
The use of cordierite or Cu-cordierite for heterogeneous catalytic ozonation enhances significantly the degradation efficiency and the TOC removal of nitrobenzene in aqueous solution relative to oz...read more
Citations
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Journal ArticleDOI
Advanced Oxidation Processes for Wastewater Treatment: Formation of Hydroxyl Radical and Application
Jianlong Wang,Le Jin Xu +1 more
TL;DR: In this paper, the authors summarize the formation reactions of the hydroxyl radical (·OH) and the mechanisms of pollutants degradation in six types of advanced oxidation processes, including radiation, photolysis and photocatalysis, sonolysis, electrochemical oxidation technologies, Fenton based reactions, and ozone-based processes.
Journal ArticleDOI
The efficiency and mechanisms of catalytic ozonation
TL;DR: In this paper, the authors provide a short overview of catalytic processes, their recent advances and identify major directions taken to understand mechanisms governing catalytic process utilised in water and wastewater treatment.
Journal ArticleDOI
FeOOH catalytic ozonation of oxalic acid and the effect of phosphate binding on its catalytic activity
TL;DR: In this paper, the catalytic activity of FeOOH on ozonation of oxalic acid at pH 4.0 and 7.0 conditions was investigated in a semi-continuous experimental mode.
Journal ArticleDOI
Advances in catalytic oxidation of organic pollutants - Prospects for thorough mineralization by natural clay catalysts
TL;DR: A review of catalytic water treatments, with emphasis on catalytic ozonation, is presented in this article, where a wide variety of oxidative treatments attempts are compared, and the main findings that allow envisaging improvements aiming towards total mineralization of organic pollutants are discussed.
Journal ArticleDOI
Catalytic activity of Fe/SBA-15 for ozonation of dimethyl phthalate in aqueous solution
TL;DR: In this paper, the catalytic activity of iron-loaded SBA-15 (Fe/SBA15) for ozonation of dimethyl phthalate (DMP) in aqueous solution was investigated.
References
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Journal ArticleDOI
Ozonation of drinking water: part I. Oxidation kinetics and product formation.
TL;DR: The second-order rate constants for oxidation by ozone vary over 10 orders of magnitude, between o 0.1 M 1 s 1 s -1 and about 7 − 10 9 M 1 S -1 s - 1 s − 1 as discussed by the authors.
Journal ArticleDOI
Degradation of chlorophenols by means of advanced oxidation processes: a general review
TL;DR: In this paper, the degradation of chlorophenols (CPs) by means of advanced oxidation processes (AOPs) was evaluated during the period 1995-2002 and different mechanistic degradation pathways were taken into account.
Journal ArticleDOI
Determination of ozone in water by the indigo method
TL;DR: In this article, the decolorization of indigo trisulfonate (600 nm, pH below 4) was used to determine the concentration of aqueous ozone in the range 0.005 −30 mg 1−1.
Journal ArticleDOI
Rate constants of reactions of ozone with organic and inorganic compounds in water-II dissociating organic compounds
J. Hoigné,H. Bader +1 more
TL;DR: In this article, the rate constants of reactions of ozone with non-ionized solutes, such as aliphatic alcohols, olefins, chlorosubstituted ethylenes, substituted benzenes and carbohydrates, have been determined from the absolute rates with which ozone reacts in the presence of various concentrations of these compounds in water.
Journal ArticleDOI
Catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment
TL;DR: A review of catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment is presented in this article, with the aim of raising awareness of possible new approaches to water purification.