Sabine Valange

ORCID: 0000-0002-6383-8930
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About
Contact & Profiles
Research Areas
  • Catalytic Processes in Materials Science
  • Mesoporous Materials and Catalysis
  • Zeolite Catalysis and Synthesis
  • Catalysis and Oxidation Reactions
  • Ultrasound and Cavitation Phenomena
  • Catalysis for Biomass Conversion
  • Advanced oxidation water treatment
  • Oxidative Organic Chemistry Reactions
  • Polyoxometalates: Synthesis and Applications
  • Metal-Organic Frameworks: Synthesis and Applications
  • Chemical Synthesis and Characterization
  • Layered Double Hydroxides Synthesis and Applications
  • Iron oxide chemistry and applications
  • Lignin and Wood Chemistry
  • Laser-Ablation Synthesis of Nanoparticles
  • Advanced Photocatalysis Techniques
  • Adsorption and biosorption for pollutant removal
  • Pigment Synthesis and Properties
  • Porphyrin and Phthalocyanine Chemistry
  • Free Radicals and Antioxidants
  • Minerals Flotation and Separation Techniques
  • Clay minerals and soil interactions
  • Magnesium Oxide Properties and Applications
  • Catalysts for Methane Reforming
  • Supercapacitor Materials and Fabrication

Institut de Chimie des Milieux et des Matériaux de Poitiers
2015-2025

Centre National de la Recherche Scientifique
2013-2025

Université de Poitiers
2015-2025

Institut de Chimie
2017-2024

CREATe Centre
2024

Laboratoire de Chimie Organique
2004-2012

Catalyse
2007-2012

Université de Haute-Alsace
1998-2008

Institut Charles Gerhardt Montpellier
2008

École Nationale Supérieure de Chimie de Montpellier
2000-2008

This is a critical review on lignin valorization through oxidation reactions focusing innovative approaches involving heterogeneous catalysis and unconventional activation methods solvents.

10.1039/c5gc03061g article EN Green Chemistry 2016-01-01

Glycerol was oxidized selectively to oxalic and tartronic acids in 78% yield over a highly crystalline CuO catalyst prepared within few minutes by sonochemical synthesis.

10.1039/c8gc00961a article EN Green Chemistry 2018-01-01

Abstract BACKGROUND: A mesoporous alumina supported nanosized Fe 2 O 3 was prepared through an original synthesis procedure and used as a heterogeneous catalyst for the Fenton process degradation of model azo dye C.I. Acid Orange 7 enhanced by ultrasound irradiation (US/Fe ‐Al ‐meso/H system). The effect various operating conditions investigated, namely hydrogen peroxide concentration, initial pH, ultrasonic power loading. RESULTS: results indicated that followed pseudo‐first‐order kinetic...

10.1002/jctb.2608 article EN Journal of Chemical Technology & Biotechnology 2011-03-24

Abstract The innovative combination of sonochemistry (power ultrasound) and photocatalysis (UV light) has been extensively investigated in the literature, especially as an advanced oxidation process. Based on these results but with a completely different strategy, sonophotocatalysis starts to be applied organic reactions could represent way valorize biomass into fuels or platform molecules. This article discusses this opportunity proposes some trends outlooks for further researches area.

10.1002/cctc.201700297 article EN ChemCatChem 2017-03-04

A mesoporous siliceous material of MCM-41 type was characterized by nitrogen adsorption, X-ray diffraction, and Fourier transform infrared spectroscopy. Its pore diameter, external internal surface, volume, wall thickness, density were determined. Special attention paid to sample aging its stability toward temperature, water vapor, mechanical compression, aiming at using this in industrial applications such as adsorption or catalysis. Calcined loses an important part mesoporosity during...

10.1021/la0118255 article EN Langmuir 2002-05-31

In this review paper, we have assembled the main characteristics of partial oxidation reactions (oxidative dehydrogenation and selective to olefins or oxygenates, as aldehydes carboxylic acids nitriles), well total oxidation, particularly for depollution, environmental issues wastewater treatments. Both gas–solid liquid–solid media been considered with recent representative examples within these fields. We also discussed about their potential prospective industrial applications. Particular...

10.3390/catal8100483 article EN Catalysts 2018-10-22

The abatement of aromatic pollutants in water requires their oxidation to nontoxic products by resource‐intensive reactions with hydroxyl radicals (•OH). We elucidate the mechanisms •OH‐induced ring degradation combining kinetic measurements, electron paramagnetic resonance spectroscopy, density functional theory calculations, and modelling. demonstrate that benzyl alcohol, a model compound, is oxidized •OH radicals, generated ultrasonic irradiation an O2‐rich environment, into compounds...

10.1002/cssc.202500097 article EN ChemSusChem 2025-02-06

Ultrasonic irradiation holds potential for the selective oxidation of non‐volatile organic substrates in aqueous phase by harnessing hydroxyl radicals as chemical initiators. Here, a mechanistic description radical‐initiated glyoxal is constructed gleaning insights from photolysis and radiation chemistry to explain yields kinetic trends products. The measurements reported herein reveal that increasing formation rate changing ultrasound frequency increases both rates consumption selectivity...

10.1002/cssc.202400838 article EN ChemSusChem 2024-07-08
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