Polyamine-Based Organo-Clays for Polluted Water Treatment: Effect of Polyamine Structure and Content.

ABSTRACT: Hybrid materials based on clays and polyamines are supposed to be efficient heavy metals sorbents due to the well-known adsorption behaviour of the clay matrix and to the coordination properties of un-protonated amino groups. For this purpose, a montmorillonite clay was modified with three different aliphatic polyamines: L6 and L10 have a linear structure with six and ten amino groups, respectively, while B14 is a branched polyamine with fourteen amino groups. Initial amine concentration was the main parameter investigated and data were fitted with Langmuir and Freundlich models. Interaction mechanisms between clay and amines were deeply investigated by different experimental techniques such as X-ray powder diffraction (XRD), thermal analysis measurements (DTG), Fourier Transform Infrared

SUBMITTER: Cristiani C 

PROVIDER: S-EPMC6571895 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature