Trisurethane functionalized sulfonamide based polymeric sorbent: Synthesis, surface properties and efficient mercury sorption from wastewater

[Display omitted] •This article presents synthesis and characterization of a new tris urethane modified.•The surface properties were determined by inverse gas chromatography method.•This article discusses mercury sorption performances of the polymeric adsorbent.•The PS-TUR adsorbent exhibited good r...

Full description

Saved in:
Bibliographic Details
Published in:Separation and purification technology 2023-11, Vol.325, p.124606, Article 124606
Main Authors: Tekneci Akgül, Ebru, Isik, Birol, Filiz Senkal, Bahire, Cankurtaran, Özlem
Format: Article
Language:English
Subjects:
Inverse gas chromatography
Mercury removal
Sulfonamide
Surface properties
Urethane
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •This article presents synthesis and characterization of a new tris urethane modified.•The surface properties were determined by inverse gas chromatography method.•This article discusses mercury sorption performances of the polymeric adsorbent.•The PS-TUR adsorbent exhibited good recyclability. In this study, trisurethane modified sulfonamide based polymeric adsorbent was prepared starting from reaction with chlorosulfonated poly (styrene) (PS) beads and tris(hidroxymethyl) aminometane. Hydroxyl functions of the adsorbent were reacted with butyl isocyanate in the presence of dibutyltin dilaurate as a catalyst at 60 0C for 48 h to obtain tris urethane functional polymeric adsorbent (PS-TUR). Spectroscopic and morphological characterizations of the polymeric adsorbents were carried out using scanning electron microscopy (SEM-EDX), infrared spectrophotometry (FTIR), XPS and analytical methods. The surface properties of PS-TUR were investigated for the first time with the inverse gas chromatography technique at infinite dilution before adsorption studies. The dispersive surface energy of adsorbent was determined according to the method of Schultz (55.54–61.73 mJ m−2) and Dorris-Gray (57.70–67.03 mJ m−2). Adsorption enthalpy and Gibbs free energy were calculated according to this technique and it was determined that the adsorption was exothermic and spontaneous. As a result of the analyzes made with this technique, it was determined that the PS-TUR adsorbent surface was acidic (KD/KA=0.27
ISSN:1383-5866
1873-3794
DOI:10.1016/j.seppur.2023.124606