Water vapor diffusive transport in a smectite clay: Cationic control of normal versus anomalous diffusion Leander Michels, Yves Méheust, Mario A. S. Altoé, Éverton C. dos Santos, Henrik Hemmen, et al. Physical Review E, 2019 The transport of chemical species in porous media is ubiquitous in subsurface processes, including contaminant transport, soil drying, and soil remediation. We study vapor transport in a multiscale porosity material, a smectite clay, in which water molecules travel in mesopores and macropores between the clay grains but can also intercalate inside the nanoporous grains, making them swell. The intercalation dynamics is known to be controlled by the type of cation that is present in the nanopores; in this case exchanging the cations from Na^{+} to Li^{+} accelerates the dynamics. By inferring spatial profiles of mesoporous humidity from a space-resolved measurement of grain swelling, and analyzing them with a fractional diffusion equation, we show that exchanging the cations changes mesoporous transport from Fickian to markedly subdiffusive. This results both from modifying the exchange dynamics between the mesoporous and nanoporous phases, and from the feedback of transport on the medium's permeability due to grain swelling. An important practical implication is a large difference in the time needed for vapor to permeate a given length of the clay depending on the type of intercalated cation.
Cu-bentonite as a low-cost adsorbent for removal of ethylenethiourea from aqueous solutions AZ Bazzarella, LD Paquini, UG Favero, R de Oliveira Alves, MAS Altoé, ... Journal of Molecular Liquids 333, 115912 , 2021 2021.0 Citations: 14
Exfoliation of carboxymethylcellulose-intercalated layered double hydroxide in water GF Perotti, JR Bortotti, FS Lima, L Michels, EC dos Santos, MAS Altoe, ... Applied Clay Science 205, 106005 , 2021 2021.0 Citations: 9
The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li + or Na + L Michels, CLS Da Fonseca, Y Méheust, MAS Altoe, EC Dos Santos, ... The Journal of Physical Chemistry C 124 (45), 24690-24703 , 2020 2020.0 Citations: 13
Water vapor diffusive transport in a smectite clay: Cationic control of normal versus anomalous diffusion L Michels, Y Méheust, MAS Altoe, ÉC Dos Santos, H Hemmen, ... Physical Review E 99 (1), 013102 , 2019 2019.0 Citations: 14
Water adsorption in layered material MAS Altoé, L Michels, EC dos Santos Proceedings of the 27. RAU: annual users meeting LNLS/CNPEM. Abstract book … , 2017 2017.0
Mapping out the dynamics of cation exchange by means of synchrotron XRD G Grassi, CLS da Fonsêca, GJ da Silva, L Michels, MAS Altoé, ... Proceedings of the 27. RAU: annual users meeting LNLS/CNPEM. Abstract book, 2-2 , 2017 2017.0
Vapor transport in a smectite clay: from normal to anomalous diffusion Y Meheust, L Michels, MAS Altoé, EC dos Santos, H Hemmen, R Droppa, ... AGU Fall Meeting Abstracts 2016, H21J-08 , 2016 2016.0
Continuous water adsorption states promoted by Ni2+ confined in a synthetic smectite MAS Altoé, L Michels, EC dos Santos, R Droppa Jr, G Grassi, L Ribeiro, ... Applied Clay Science 123, 83-91 , 2016 2016.0 Citations: 23
Vapor transport in a porous smectite clay: from normal to anomalous diffusion Y Meheust, L Michels, MAS Altoé, H Hemmen, R Droppa, J Fossum, ... AGU Fall Meeting Abstracts 2015, H51L-1555 , 2015 2015.0
Transições entre estados de hidratação em nanossilicatos sintéticos MAS Altoé Universidade de Brasília , 2015 2015.0 Citations: 3
Cation exchange dynamics confined in a synthetic clay mineral G Grassi, L Michels, Z Rozynek, MAS Altoé, EC dos Santos, ... The European Physical Journal Special Topics 223 (9), 1883-1893 , 2014 2014.0 Citations: 13
Determinação do expoente de crescimento de padrões formados em meios granulares MAS Altoé 2011.0 Citations: 1
INFLUÊNCIA DO pH, TRATAMENTO TÉRMICO E ÁCIDO DA ARGILA ESMECTITA NO PROCESSO DE ADSORÇÃO DA SULFANILAMIDA EM SOLUÇÃO AQUOSA PS Massariol, T Guimarães, MAS Altoé, D Profeti, LPR Profeti
MOST CITED SCHOLAR PUBLICATIONS
Continuous water adsorption states promoted by Ni2+ confined in a synthetic smectite MAS Altoé, L Michels, EC dos Santos, R Droppa Jr, G Grassi, L Ribeiro, ... Applied Clay Science 123, 83-91 , 2016 2016.0 Citations: 23
Cu-bentonite as a low-cost adsorbent for removal of ethylenethiourea from aqueous solutions AZ Bazzarella, LD Paquini, UG Favero, R de Oliveira Alves, MAS Altoé, ... Journal of Molecular Liquids 333, 115912 , 2021 2021.0 Citations: 14
Water vapor diffusive transport in a smectite clay: Cationic control of normal versus anomalous diffusion L Michels, Y Méheust, MAS Altoe, ÉC Dos Santos, H Hemmen, ... Physical Review E 99 (1), 013102 , 2019 2019.0 Citations: 14
The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li + or Na + L Michels, CLS Da Fonseca, Y Méheust, MAS Altoe, EC Dos Santos, ... The Journal of Physical Chemistry C 124 (45), 24690-24703 , 2020 2020.0 Citations: 13
Cation exchange dynamics confined in a synthetic clay mineral G Grassi, L Michels, Z Rozynek, MAS Altoé, EC dos Santos, ... The European Physical Journal Special Topics 223 (9), 1883-1893 , 2014 2014.0 Citations: 13
Exfoliation of carboxymethylcellulose-intercalated layered double hydroxide in water GF Perotti, JR Bortotti, FS Lima, L Michels, EC dos Santos, MAS Altoe, ... Applied Clay Science 205, 106005 , 2021 2021.0 Citations: 9
Transições entre estados de hidratação em nanossilicatos sintéticos MAS Altoé Universidade de Brasília , 2015 2015.0 Citations: 3
Determinação do expoente de crescimento de padrões formados em meios granulares MAS Altoé 2011.0 Citations: 1
Water adsorption in layered material MAS Altoé, L Michels, EC dos Santos Proceedings of the 27. RAU: annual users meeting LNLS/CNPEM. Abstract book … , 2017 2017.0
Mapping out the dynamics of cation exchange by means of synchrotron XRD G Grassi, CLS da Fonsêca, GJ da Silva, L Michels, MAS Altoé, ... Proceedings of the 27. RAU: annual users meeting LNLS/CNPEM. Abstract book, 2-2 , 2017 2017.0
Vapor transport in a smectite clay: from normal to anomalous diffusion Y Meheust, L Michels, MAS Altoé, EC dos Santos, H Hemmen, R Droppa, ... AGU Fall Meeting Abstracts 2016, H21J-08 , 2016 2016.0
Vapor transport in a porous smectite clay: from normal to anomalous diffusion Y Meheust, L Michels, MAS Altoé, H Hemmen, R Droppa, J Fossum, ... AGU Fall Meeting Abstracts 2015, H51L-1555 , 2015 2015.0
INFLUÊNCIA DO pH, TRATAMENTO TÉRMICO E ÁCIDO DA ARGILA ESMECTITA NO PROCESSO DE ADSORÇÃO DA SULFANILAMIDA EM SOLUÇÃO AQUOSA PS Massariol, T Guimarães, MAS Altoé, D Profeti, LPR Profeti