J
Jerzy A. Mielczarski
Researcher at Centre national de la recherche scientifique
Publications - 61
Citations - 2885
Jerzy A. Mielczarski is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Adsorption & Aqueous solution. The author has an hindex of 30, co-authored 61 publications receiving 2686 citations. Previous affiliations of Jerzy A. Mielczarski include State University of Campinas.
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Evidence of the Existence of Three Types of Species at the Quartz−Aqueous Solution Interface at pH 0−10: XPS Surface Group Quantification and Surface Complexation Modeling
TL;DR: In this paper, the surface composition of a quartz surface reacted with various aqueous solutions of pH 0−10 was qualitatively and quantitatively evaluated using X-ray photoelectron spectroscopy (XPS).
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Escherichia coli inactivation by N, S co-doped commercial TiO2 powders under UV and visible light
Julián A. Rengifo-Herrera,E. Mielczarski,Jerzy A. Mielczarski,Nikola C. Castillo,J. Kiwi,Cesar Pulgarin +5 more
TL;DR: In this paper, commercial anatase TiO 2 powders were ground with thiourea and annealed at 400 and 500°C. Using the Kubelka-Munk relations, it was possible to determine the band-gap of the doped TiO2.
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Surface speciation models of calcite and dolomite/aqueous solution interfaces and their spectroscopic evaluation
TL;DR: In this paper, the composition and density of surface hydroxyl and carbonate groups on calcite and dolomite after contact at 25 °C with solutions of different pH (3 to 12) and Carbonate concentration (10-4 ≤ ∑CO2 ≤ 0.1 M) were monitored by means of diffuse reflectance infrared (DRIFT) spectroscopy.
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Role of iron surface oxidation layers in decomposition of azo-dye water pollutants in weak acidic solutions
TL;DR: In this article, the authors established strong relationships between the composition and structure of the iron oxidized surface layer and the kinetics and reaction pathways of orange II decomposition, and showed that at pH 4 and 5 the rate is lower with pseudo-zero-order kinetics, with normalized rate constant kSA = 1.4 × 10−5 mol/m2 min at pH 5 and 30 °C.
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2. Sensitized degradation of chlorophenols on iron oxides induced by visible light: Comparison with titanium oxide
TL;DR: In this paper, the degradation of trichlorophenols on aqueous suspensions of α-Fe2O3 and β-FeOOH was investigated. And the results showed that 2,4-DCP degrades more rapidly than other chlorophenols tested during this study.