129Xe NMR spectroscopy of adsorbed xenon as an approach for the characterisation of soil meso- and microporosity

Soil micro- and mesopores studied by N2 adsorption and 129Xe NMR of adsorbed xenon

“…The factors influencing 129 Xe NMR parameters in soils, which are highly heterogeneous systems both in geometry (variety of particle and pore sizes) and in chemical properties, were described in detail in our previous study (Filimonova et al, 2004). For the soils investigated there, no micropores were detected by 129 Xe NMR.…”

“…They were smectite in the Luvisol and Gleysol and vermiculite in the Podzol (Filimonova et al, 2004).…”

“…The soils were classified according to the WRB system (ISSS Working Group RB, 1998), and the horizon designations were performed according to the German Soil Survey Description (AG-Boden, 1994). Selected properties of the bulk samples (b2 mm) are given in Table 1, and their more detailed description can be found in Filimonova et al (2004).…”

“…Recently, 129 Xe NMR spectroscopy of adsorbed xenon was applied as a new approach for the examination of the porosity of soil related materials (Magusin et al, 1997;Filimonova et al, 2004). Originally, this technique was introduced by Ito and Fraissard (1980) to investigate the microporous structure of zeolites.…”

Interaction mechanism of benzene and phenanthrene in condensed organic matter: Importance of adsorption (nanopore-filling)

“…Condensed organic carbons such as kerogen, coal, and black carbon can substantially contribute to NOM in soils and sediments (Cornelissen et al, 2005;Ran et al, 2002Ran et al, , 2007Weber et al, 1992). It is noted that NMR spectroscopy has been increasingly used to provide a basis for inferring the molecular structure in these organic matter (Chefetz et al, 2000;Filimonova et al, 2004;Kögel-Knabner, 1997;Ran et al, 2002Ran et al, , 2007Salloum et al, 2002).…”