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23

Valérie HEQUET


After a Ph.D. in Chemistry, Environment and Health and a post-doctoral position in Florida State Univ. in Thalahassee (USA), Valérie Héquet arrived in 2000 at the Ecole des Mines de Nantes at the Department of Energy Systems and Environment. She is currently Associate Professor. She is a member of the UMR CNRS laboratory GEPEA (Génie des Procédés-Environnement et Agro-alimentaire) where she has in charge the team “Air and Water Treatment and Metrology”. Her main domains of research are on the mass transfers and advanced oxidation mechanisms especially occurring in photocatalytic processes. The aims are the removal of low concentration organic compounds in mixture in indoor atmospheres and the removal of micro-pollutants at low concentrations in aqueous matrix. She is scientific coordinator in several French research projects and she was leader of a work-package of a European Project Clean Water (FP7-ENR-NMP). These project objectives were to evaluate the activity of visible-nano-catalysts under solar irradiation for water detoxification and efficiency towards emerging pollutants. Up to now, she has published more than 30 papers in peer review journals (h-index of 12) and has attended to numerous national and international conferences (80 invited, oral and poster communications). She is a member of the « Fédération de la société Française de Photocatalyse », of the European Photocatalysis Federation, of the “Société Française en Génie des Procédés” and of the American Chemical Society.


Article dans une revue22 documents

  • Valérie Hequet, C. Raillard, O. Debono, F. Thevenet, N. Locoge, et al.. Photocatalytic oxidation of VOCs at ppb level using a closed-loop reactor: The mixture effect. Applied Catalysis B: Environmental, Elsevier, 2018, 226, pp.473 - 486. 〈10.1016/J.APCATB.2017.12.041〉. 〈hal-01700177〉
  • Valérie Hequet, Henrietta Essie Whyte, Cécile Raillard, Albert Subrenat. Photocatalytic oxidation of isoflurane, an anesthetic gas: The influence of operating parameters. Chemical Engineering Journal, Elsevier, 2018, 352, pp.441 - 449. 〈10.1016/j.cej.2018.07.059〉. 〈hal-01877998〉
  • Frédéric Batault, Valérie Hequet, Cécile Raillard, Frédéric Thévenet, Nadine Locoge, et al.. How chemical and physical mechanisms enable the influence of the operating conditions in a photocatalytic indoor air treatment device to be modeled. Chemical Engineering Journal, Elsevier, 2017, 307, pp.766 - 775. 〈10.1016/j.cej.2016.08.118〉. 〈hal-01423685〉
  • O. Debono, Valérie Hequet, Laurence Le Coq, N. Locoge, F. Thevenet. VOC ternary mixture effect on ppb level photocatalytic oxidation: Removal kinetic, reaction intermediates and mineralization. Applied Catalysis B: Environmental, Elsevier, 2017, 218, pp.359 - 369. 〈10.1016/j.apcatb.2017.06.070〉. 〈hal-01700203〉
  • Valérie Hequet, Eric Dumont. Determination of the Clean Air Delivery Rate (CADR) of Photocatalytic Oxidation (PCO) Purifiers for Indoor Air Pollutants Using a Closed-Loop Reactor. Part I: Theoretical Considerations. Molecules, MDPI, 2017, 22 (3), pp.407. 〈10.3390/molecules22030407〉. 〈hal-01878055〉
  • Valérie Hequet, Frédéric Batault, Cécile Raillard, Frédéric Thévenet, Laurence Le Coq, et al.. Determination of the Clean Air Delivery Rate (CADR) of Photocatalytic Oxidation (PCO) Purifiers for Indoor Air Pollutants Using a Closed-Loop Reactor. Part II: Experimental Results. Molecules, MDPI, 2017, Photon-involving Purification of Water and Air, 22 (3), pp.408. 〈10.3390/molecules22030408〉. 〈hal-01487568〉
  • F. Batault, F. Thevenet, Valérie Hequet, C. Rillard, Laurence Le Coq, et al.. Acetaldehyde and acetic acid adsorption on TiO2 under dry and humid conditions. Chemical Engineering Journal, Elsevier, 2015, 264, pp.197-210. 〈10.1016/j.cej.2014.10.089〉. 〈hal-01204737〉
  • V. Maroga Mboula, Valérie Hequet, Yves Andres, Y. Gru, R. Colin, et al.. Photocatalytic degradation of estradiol under simulated solar light and assessment of estrogenic activity. Applied Catalysis B: Environmental, Elsevier, 2015, 162, pp.437-444. 〈10.1016/j.apcatb.2014.05.026〉. 〈hal-01204732〉
  • Cécile Raillard, Audrey Maudhuit, Valérie Hequet, Laurence Le Coq, Jean Sablayrolles, et al.. Use of Experimental Designs to Establish a Kinetic Law for a Gas Phase Photocatalytic Process. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, 2014, 12 (1), 〈10.1515/ijcre-2014-0012〉. 〈hal-01206905〉
  • Cécile Raillard, Hugo Destaillats, Valérie Hequet, Mohamad Sleiman, Olivier Debono, et al.. Indoor air purification by photocatalytic oxidation: Fate of contaminants released in the gas phase and key parameter optimization for the improvement of the process efficiency and safety. Abstracts of Papers of the American Chemical Society, American Chemical Society, 2014, 248. 〈hal-01204892〉
  • Olivier Debono, Cecile Raillard, Valérie Hequet, Frederic Thevenet, Nadine Locoge, et al.. TiO2 photocatalytic oxidation of indoor VOCs at ppb levels in a multi-pass dynamic reactor: Influence of VOCs mixture on reaction intermediates concentrations. Abstracts of Papers of the American Chemical Society, American Chemical Society, 2013, 245. 〈hal-00945339〉
  • Vanessa Maroga Mboula, Valérie Hequet, Yves Andres, Luisa Maria Pastrana-Martinez, Jose Miguel Dona-Rodriguez, et al.. Photocatalytic degradation of endocrine disruptor compounds under simulated solar light. Water Research, IWA Publishing, 2013, 47 (12, SI), pp.3997-4005. 〈10.1016/j.watres.2013.01.055〉. 〈hal-00877618〉
  • Cécile Raillard, Valérie Hequet, Bifen Gao, Heyok Choi, Dionysios D. Dionysiou, et al.. Correlations between molecular descriptors from various volatile organic compounds and photocatalytic oxidation kinetic constants. International Journal of Chemical Reactor Engineering, De Gruyter, 2013, 11 (2), pp.799--813. 〈10.1515/ijcre-2012-0052〉. 〈hal-01188109〉
  • Olivier Debono, F. Thevenet, P. Gravejat, Valérie Hequet, Cécile Raillard, et al.. Gas phase photocatalytic oxidation of decane at ppb levels: Removal kinetics, reaction intermediates and carbon mass balance. Journal of Photochemistry and Photobiology A: Chemistry, Elsevier, 2013, 258, pp.17--29. 〈10.1016/j.jphotochem.2013.02.022〉. 〈hal-00945326〉
  • Vanessa Maroga Mboula, Valérie Hequet, Y. Gru, R. Colin, Yves Andres. Assessment of the efficiency of photocatalysis on tetracycline biodegradation. Journal of Hazardous Materials, Elsevier, 2012, 209, pp.355-364. 〈10.1016/j.jhazmat.2012.01.032〉. 〈hal-00877738〉
  • Audrey Maudhuit, Cecile Raillard, Valérie Hequet, Laurence Le Coq, Jean Sablayrolles, et al.. Adsorption phenomena in photocatalytic reactions: The case of toluene, acetone and heptane. Chemical Engineering Journal, Elsevier, 2011, 170 (2-3), pp.464--470. 〈10.1016/j.cej.2011.02.040〉. 〈hal-00945320〉
  • O. Debono, F. Thevenet, P. Gravejat, Valérie Hequet, C. Raillard, et al.. Toluene photocatalytic oxidation at ppbv levels: Kinetic investigation and carbon balance determination. Applied Catalysis B: Environmental, Elsevier, 2011, 106 (3-4), pp.600 - 608. 〈10.1016/j.apcatb.2011.06.021〉. 〈hal-01423680〉
  • N. Arconada, Y. Castro, A. Durán, Valérie Hequet. Photocatalytic oxidation of methyl ethyl ketones over sol–gel mesoporous and meso-structured TiO2 films obtained by EISA method. Applied Catalysis B: Environmental, Elsevier, 2011, 107 (1-2), pp.52 - 58. 〈10.1016/j.apcatb.2011.06.036〉. 〈hal-01444888〉
  • Olivier Debono, Frédéric Thevenet, Valérie Hequet, Cecile Raillard, Laurence Le Coq, et al.. Photocatalytic oxidation of indoor VOCs at ppb levels: Kinetics of by-products formation. Abstracts of Papers of the American Chemical Society, American Chemical Society, 2010, 239. 〈hal-00945332〉
  • Catherine Faur, Christophe Stavrakakis, Valérie Hequet, Roland Colin, Pierre Le Cloirec. Development and statistical validation of a quantitative method for the determination of steroid hormones in environmental water by liquid chromatography-tandem mass spectrometry. Journal of AOAC INTERNATIONAL, AOAC International, 2008. 〈hal-01894466〉
  • Christophe Stavrakakis, Valérie Hequet, Catherine Faur, Yves Andres, Pierre Le Cloirec, et al.. Biodegradation of endocrine disrupters: Case of 17 beta-estradiol and bisphenol A. Environmental Technology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2008, 29 (3), pp.269-277. 〈10.1080/09593330802099304〉. 〈hal-00878484〉
  • C. Raillard, Valérie Hequet, P. Le Cloirec, J. Legrand. Kinetic study of ketones photocatalytic oxidation in gas phase using TiO2-containing paper: effect of water vapor. Journal of Photochemistry and Photobiology A: Chemistry, Elsevier, 2004, 163 (3), pp.425 - 431. 〈10.1016/j.jphotochem.2004.01.014〉. 〈hal-01444715〉

Communication dans un congrès1 document

  • Vanessa Maroga Mboula, Valérie Hequet, Yves Andres, Yvan Gru, Ronan Colin, et al.. UV-visible photocatalytic degradation of 17b-estradiol and estrogenic activity assessment. 245th National Meeting of the American-Chemical-Society (ACS), Apr 2013, New Orleans, United States. American Chemical Society, 245, pp.6-ENVR, 2013, Abstracts of papers of the American Chemical Society. 〈hal-00877620〉