Tuning of Fly Ash Loading into Chitosan-Ethylene Glycol Diglycidyl Ether Composite for Enhanced Removal of Reactive Red 120 Dye: Optimization Using the Box–Behnken Design

The Irish kelp, Fucus vesiculosus, a highly potential green bio sorbent for Cd (II) removal: Mechanism, quantitative and qualitative approaches

“…FTIR data of wet algae tissue before and after adsorption and desorption treatments are presented in Figure 8 and interpreted in the text aided by vibrations identification as in Table SI 6. Variable and broad vibrations in the range of 3200-3600 cm −1 are assigned to -OH, hydroxyl intermolecular functional groups (Andy, 2015;Jawad et al, 2020). This broad peak is present in all spectra of the algae species as well as alginate and cellulose standards.…”

Removal of naproxen from wastewater using chitosan–aerogel–activated carbon biocomposites: Theory, equilibrium, kinetics, thermodynamics, and process optimization

“…The BBD is a widely used method for modeling and optimization of process variables by minimizing the number of experiments in a cost‐ and time‐effective way (Jawad et al, 2020). In the present study, BBD was used to investigate the effect of process variables and the relationship between these variables on the response using Design‐Expert (DOE) Version 11.0.5.0 software (Stat‐Ease Inc., ABD).…”

Adsorption performance of Food Red 17 dye using an eco-friendly material based on Luffa cylindrica and chitosan

“…Both spectra show a broad signal at 3455 cm À1 showing the superposition of the NH and OH elongation vibrations of chitosan and the OH group of the cellulose present in Luffa cylindrica. Still, other characteristic bands of chitosan, such as type I amide (CHCO) and type II amide (NH), are found around 1600 cm À1 and 1550 cm À1 , respectively [37][38][39][40][41][42]. The 1600 cm À1 band can also be related to Luffa through the C = O stretch.…”