Adsorption capacity of sodic- and dendrimers-modified stevensite

• Published in: Clay minerals Vol. 53; no. 3; pp. 525 - 544
• Main Authors: Hajjaji, Mohamed, Beraa, Abdellah, Coppel, Yannick, Laurent, Regis, Caminade, Anne-Marie
• Format: Journal Article
• Language: English
• Published: Middlesex Mineralogical Society 01.09.2018; Cambridge University Press
• Subjects: Adsorbents; Adsorption; Analytical methods; Aqueous solutions; Capacity; Chemical modification; Chemical Sciences; Chemical speciation; Chromate; Chromates; clastic sediments; Clay; clay minerals; Coordination chemistry; Dendrimers; Diffusion; Diffusion rate; Effluents; Free surfaces; Isotherms; Kinetic equations; Kinetics; Langmuir equation; Magnetic resonance spectroscopy; mathematical models; Methylene blue; Mineralogy; Minerals; NMR; Nuclear magnetic resonance; numerical models; Organic chemistry; Phosphorus; Pollutants; Protonation; Regression analysis; sediments; sheet silicates; silicates; Species diffusion; spectroscopy; Stevensite; Surface chemistry; Morocco; France

The adsorption capacities of nano-sized organoclays composed of a stevensite-rich clay (R), phosphorus dendrimers (GC1 and GC2) and Na+-saturated clay were evaluated for their capacity to adsorb chromate and methylene blue (MB) in the range of 298-318 K. The adsorption kinetics and the isotherms wer...