Characterization of chitosan/montmorillonite membranes as adsorbents for Bezactiv Orange V-3R dye

Facile Preparation of Biocomposite from Prawn Shell Derived Chitosan and Kaolinite-Rich Locally Available Clay

“…Although chitosan (CHT)/kaolinite clay composites are very attractive, they were not extensively investigated for removal of heavy metals from industrial wastes and there are a relatively small number of scientific publications. Montmorillonite-chitosan bionanocomposites were also found as a potential adsorbent for herbicide clopyralid in aqueous solution and soil/water suspensions and bezactiv Orange V-3R dye [18,19]. A nanocomposite based on chitosan and montmorillonite was developed as a carrier to improve oral bioavailability of oxytetracycline [20].…”

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

“…Montmorillonite (MMT), the main component of bentonite, is a layered aluminosilicate mineral that belongs to the montmorillonite/smectite group of clay minerals. Chitosan/ montmorillonite composite prepared by different approaches has successfully employed to adsorb dye 30 , Cobalt (II) 31 , Copper (II) 32 , and tannic acid 33 . However, there have been few reports for using chitosan/montmorillonite composite as an adsorbent to remove silver ion from aqueous solution.…”

Kinetics and thermodynamics of Pb sorption onto bentonite and poly(acrylic acid)/bentonite hybrid sorbent

“…New absorption bands were detected at 2,850.2 and 2,919.7 cm −1 in the spectrum of CTA-Bent, which were assigned to stretching vibrations of C-H bond in -CH 2 and in -CH 3 group of the aliphatic chain of the CTA surfactant [40,45]. Additionally, the bending vibration of the methyl groups can be observed at 1,468.5 cm −1 , verifying the intercalation of surfactant molecules between the silicate layers [44,46].…”

“…FT-IR spectrum of PAA shows stretching vibrations of C=O group (carboxyl or carbonyl) at 1,647.8 cm −1 [42,43]. This characteristic band was shifted to higher frequencies (1,671.9 cm −1 ) after the polymer was combined with the clay which can be related to the interactions between the C=O groups and the clay surfaces [44]. New absorption bands were detected at 2,850.2 and 2,919.7 cm −1 in the spectrum of CTA-Bent, which were assigned to stretching vibrations of C-H bond in -CH 2 and in -CH 3 group of the aliphatic chain of the CTA surfactant [40,45].…”