Ion exchange reactions of major inorganic cations (H+, Na+, Ca2+, Mg2+ and K+) on beidellite: Experimental results and new thermodynamic database. Toward a better prediction of contaminant mobility in natural environments

Adsorption of strontium and caesium onto an Na-illite and Na-illite/Na-smectite mixtures: Implementation and application of a multi-site ion-exchange model

“…Many adsorption models were developed in order to represent the adsorption behaviours of Sr 2+ and Cs + onto clay minerals, sediment, or soils. In most of these models, adsorption is described as an ion-exchange (Robin et al, 2015) or a surface complexation (Nie et al, 2017) reaction. On the other hand, Bradbury and Baeyens (1999) have considered both adsorption and complexation phenomena, and have developed a model based on a mechanistic description of the cation adsorption between a clay minerals and a liquid phase -namely the two-sites protolysis non-electrostatic surface complexation and cation -exchange model or 2SPNE SC/CE.…”

Adsorption of strontium and caesium onto an Na-MX80 bentonite: Experiments and building of a coherent thermodynamic modelling

“…K Na + /H + This approach requires a careful and thorough characterisation of adsorption. First, the ion exchange properties (SCi and corrected selectivity coefficients) have to be measured in a wide parametric domain of pH, ionic strength, and metal concentration (Jacquier et al, 2004;Motellier et al, 2003;Reinoso-Maset and Ly, 2014;Robin et al, 2015;Stammose et al, 1992), forming a coherent thermodynamic database for adsorption. All the exchange properties are experimentally measurable with adsorption isotherms.…”

Cecropin B loaded TiO2 nanotubes coated with hyaluronidase sensitive multilayers for reducing bacterial adhesion

“…1B, c), the peaks of -NH 2 were disappeared and the amide I bonds shifted to 1653 cm −1 and 1561 cm −1 , respectively. Besides, an additional peak at 1701 cm −1 was observed, which was contributed to the ion exchange of Na + with H + under an acidic (pH 5.5) reaction condition, leading to the formation of -COOH groups [35]. Moreover, from the 1 H NMR spectrum of SH (Fig.…”