Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

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Session Overview
Session
MS-103: XAS and crystallography allied for geomaterials and environmental problems
Time:
Saturday, 21/Aug/2021:
2:45pm - 5:10pm

Session Chair: J. Fred Mosselmans
Session Chair: Annalisa Martucci
Location: 223-4

60 2nd floor

Invited: Giuseppe Cruciani (Italy), Georgia Cametti (Switzerland)


Session Abstract

The contamination of natural resources, such as water and soil, caused by waste and disposal practices is one of the major issues that needs to be addressed to maintain the long-term sustainability of our environment. The design of strategies for the immobilization and removal of toxic materials is thus a priority, for which a better understanding of the speciation of toxic elements is necessary. Nuclear waste is a particularly important issue for many developed countries. One of the main challenges in this area is the understanding of the chemistry of long half-life radionuclides, such as U, Np, Pu, Am and Tc that are present in potentially stable nuclear waste forms. This knowledge is essential if we are to better manage and engineer safe disposal. A central challenge is the need to understand how the containers, engineered components and host rocks will modify under the cumulative radiation dose they receive from contained and escaping wastes. X-ray Absorption Spectroscopy (XAS) and X-ray Diffraction (XRD) have been widely used for the study of toxic waste in a wide range of environmental media. The high sensitivity of the spectroscopy method allows the study of samples where a highly toxic chemical species is present at very low concentration. In complementary fashion, XRD is a powerful probe for mineral structure determination particularly sensitive to heavy elements, as it is the case with most toxic species. The aim of this micro-symposium is to show the capabilities of these techniques for the development of new strategies for the management of toxic waste, highlighting their complementarity and application in the field of environmental science. To be shared by Inorganic and Mineral structures


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Presentations
2:45pm - 2:50pm

Introduction to session

J. Fred Mosselmans, Annalisa Martucci



2:50pm - 3:20pm

Immobilization and removal of hazardous elements by geomaterials: the harder and the softer solutions

Giuseppe Cruciani

University of Ferrara, Ferrara, Italy



3:20pm - 3:50pm

Combining X-ray diffraction, X-ray absorption spectroscopy, and molecular dynamics simulations to probe metals in zeolites: the case of intergrown Cd2+-LEV/ERI

Georgia Cametti1, Andreas C. Scheinost2,3, Sergey V. Churakov1,4

1Bern Universität, Bern, Switzerland; 2The Rossendorf Beamline at the European Synchrotron Radiation Facility (ESRF), Avenue des Martyrs 71, 38043 Grenoble, France; 3Helmholtz Zentrum Dresden Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328, Dresden, Germany; 4Paul Scherrer Institut, Forschungstrasse 111, 5232, Villingen PSI, Switzerland



3:50pm - 4:10pm

Adsorption and degradation mechanisms of perfluoroalkyl substances (PFAS) on Ag-exchanged FAU-type zeolite studied by in situ synchrotron X-ray diffraction and thermal analysis/isotope ratio mass spectrometry.

Maura Mancinelli1, Lara Gigli2, Matteo Ardit1, Jasper Rikkert Plaisier2, Gianluca Bianchini1, Gian Marco Salani1, Annalisa Martucci1

1Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, I-44121, Ferrara, Italy.; 2Elettra-Sincrotrone Trieste S.C.p.A., Materials Characterisation By X-ray diffraction (MCX) Beamline, Strada Statale 14 - km 163,5 in AREA Science Park, Basovizza, Trieste, Italy.



4:10pm - 4:30pm

Revealing the lifelong bio-persistent crystal structure of an asbestos fibre

Carlotta Giacobbe1, Dario Di Giuseppe2,3, Alessandro Zoboli2, Paola Bonasoni4, Anna Moliterni5, Jonathan Wright1, Alessandro Gualtieri2

1aEuropean Synchrotron Radiation Facility, 71, Avenue Des Martyrs, Grenoble, 38040, France; 2bDepartment of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Modena, 41121, Italy; 3cDepartment of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola, 2, Reggio Emilia, 42122, Italy; 4Pathology Unit, Azienda Unità Sanitaria Locale - IRCCS, Reggio Emilia, Italy; 5Istituto di Cristallografia, CNR, Via Amendola, 122/o, Bari, 70126, Italy



4:30pm - 4:50pm

Mechanisms of structural reordering during thermal transformation of aluminogermanate imogolite nanotubes

Geoffrey Monet1, Stéphan Rouzière1, Delphine Vantelon2, Pascale Launois1, Erwan Paineau1

1Laboratoire de Physique des Solides, CNRS, université Paris-Saclay, Orsay, France; 2Synchrotron SOLEIL, Saint-Aubin, France



4:50pm - 5:10pm

Evolution of the wall-crystal interface as witness of the heterogeneous nucleation and growth of Naica’s giant crystals

Maria Elena Montero-Cabrera1, Bernardo Pérez-Cázares2, María Elena Fuentes-Montero2, Luis Edmundo Fuentes-Cobas1, Isaí Castillo-Sandoval1, Iván Jalil Carreño-Márquez3, Hilda Esperanza Esparza-Ponce1, Diane Eichert4, René Loredo-Portales5, Lorena Pardo6

1Centro de Investigación en Materiales Avanzados, Chihuahua, Mexico; 2Universidad Autónoma de Chihuahua, Chihuahua, Mexico; 3Universidad La Salle Chihuahua, Chihuahua, Mexico; 4Elettra Sincrotrone-Trieste, Basovizza, Italy; 5CONACYT-Universidad nacional Autónoma de México, Hermosillo, Mexico; 6Instituto de Ciencia de Materiales de Madrid, Madrid, Spain



 
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