Results 41 to 50 of about 10,689 (251)

Catalytic destruction of stratospheric ozone [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 1997
This paper presents a review of the main ozone destroying catalytic cycles operating in the stratosphere. Particular attention is paid to the kinetic aspects of these cycles such as the rate limiting step and chain length. Although it is an important kinetic parameter, the chain length of the various cycles is seldom considered when the various ...
openaire   +1 more source

Heterogeneous Catalytic Ozonation of Acid blue 62 Over Nanorod Fe-OMS-2

open access: yesChemical Engineering Transactions, 2020
In this work, nanorod materials prepared by refluxed method (K-OMS-2) and by co-precipitation method (Fe-OMS-2) were analyzed by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscopy (SEM). Non-catalytic and heterogeneous catalytic
Tuyet-Mai Tran-Thuy   +6 more
doaj   +1 more source

Fate of drugs during wastewater treatment [PDF]

open access: yes, 2013
This is the post-print version of the final paper published in TrAC Trends in Analytical Chemistry. The published article is available from the link below.
Andrási   +98 more
core   +2 more sources

Enhanced mineralization of bisphenol A by electric arc furnace slag: Catalytic ozonation

open access: yesChemical Engineering Journal Advances, 2023
The catalytic ozonation of bisphenol A (BPA) was performed using an industrial solid waste as catalyst: electric arc furnace slag (EAFS). The characterization of the catalyst (SEM/EDS, XRD, surface area, pHPZC and Mössbauer spectroscopy) showed low ...
L.A. Fasce   +3 more
doaj   +1 more source

Leachate treatment process at a municipal stabilized landfill by catalytic ozonation: an exploratory study from Taguchi orthogonal array [PDF]

open access: yes, 2009
Catalytic ozonation has been recognized in the scientific community as an efficient technique, reaching elevated rates of recalcitrant organic material mineralization, even at the presence of scavenger species of hydroxyl free radicals.
IZÁRIO FILHO, H. J.   +2 more
core   +2 more sources

A novel activated carbon-based nanocomposite for the removal of bisphenol-A from water via catalytic ozonation: Efficacy and mechanisms

open access: yesResults in Chemistry, 2022
Concerns have been raised about the increasing number and quantity of contaminants in water resources. For a sustainable future, advances for the elimination of these contaminants of emerging concern (CECs) are important.
Hariprasad Pokkiladathu   +3 more
doaj   +1 more source

Oxidation of nitrobenzene by ozone in the presence of faujasite zeolite in a continuous flow gas–liquid–solid reactor [PDF]

open access: yes, 2010
This work investigates the oxidation of nitrobenzene (NB) by ozone in the presence of faujasite zeolite. Experiments were carried out in a gas–liquid–solid reactor were ozone transfer and NB oxidation took place at the same time.
Debellefontaine, Hubert   +3 more
core   +2 more sources

Enhancing nanoplastics removal by metal ion-catalyzed ozonation

open access: yesChemical Engineering Journal Advances
Nanoplastics (NPs), characterized by sizes < 1 µm, are not completely removed in conventional drinking water treatment plants affecting human health. Catalytic ozonation appears as a promising alternative due to its ability to oxidize emerging pollutants
Julia Nieto-Sandoval   +2 more
doaj   +1 more source

Multiwalled Carbon Nanotubes for Heterogeneous Nanocatalytic Ozonation [PDF]

open access: yes, 2014
Multiwalled carbon nanotubes functionalized by plasma oxygen (CNTs) have been used as heterogeneous catalysts for the ozonation of methyl orange (MO) dye (CI 13025) in aqueous solutions.
Chedly Tizaoui   +6 more
core   +1 more source

Heterogeneous catalytic ozonation of 2, 4-dinitrophenol in aqueous solution by magnetic carbonaceous nanocomposite: catalytic activity and mechanism [PDF]

open access: yes, 2016
Herein, the catalytic properties of a carbonaceous nanocomposite in the catalytic ozonation process (COP) of 2, 4-dinitrophenol (2, 4-DNP) were investigated and the results were compared with those obtained from single ozonation process (SOP).
Bahrami Asl, F.   +5 more
core  

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