Efficient removal of cesium from aqueous solution with vermiculite of enhanced adsorption property through surface modification by ethylamine

Comparative study of Hg(II) adsorption by thiol- and hydroxyl-containing bifunctional montmorillonite and vermiculite

“…5, insets) of the asprepared samples, the textural properties obtained from which are listed in Table 1. It can be concluded that all of these four samples present type IV isotherms which are typical for mesoporous materials with 3D interconnected pore geometry [34,35]. The hysteresis loop of H3 type in a wide p/p 0 range of 0.1-0.9 verifies a wide pore size distribution plot of these samples and the presence of slit-shaped pores with heterogeneous size and shape [25].…”

Elimination of reactive blue 4 from aqueous solutions using 3-aminopropyl triethoxysilane modified chitosan beads

“…The kinetic study was meant to evaluate the efficiency of adsorption to select the optimal conditions for the full-scale batch removal of dyes (Long et al, 2014). For this purpose, two kinetic models, including pseudo-first order and pseudo-second order models, were applied to fit the adsorption data as shown in the below equations.…”

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

“…As clay minerals bear structural negative surface charges, the adsorption of cation, as Sr 2+ and Cs + , is facilitated. The adsorption of these radionuclides onto clay minerals, such as bentonite (Galamboš et al, 2013;Montavon et al, 2006), illite (Fuller et al, 2015;Mahoney and Langmuir, 1991), kaolinite (Chen et al, 2015;Erten et al, 1988;Reinoso-Maset and Ly, 2014) or vermiculite (Dzene et al, 2015;Long et al, 2014), has been extensively studied in the literature. Illite is especially referenced as the major adsorbent for Cs + onto strong affinity low concentration sites, referred as frayed edge sites (Brouwer et al, 1983;Cremers et al, 1988;Sawhney, 1972).…”