Adsorptive removal of Cu (II) from aqueous solution using succinylated Artemisia vulgaris seed hydrogel

Abstract

Hydrogels are the three-dimensional and hydrophilic biomaterials. This is because of their ability to be chemically modified due to the presence of chemically modifiable groups like carboxylic (--COOH) and hydroxyl (-OH). In the current research, an acetylated hydrogel of the seeds of Artemisia vulgaris (AVH) was extracted, succinylated, and saponified to obtain an eco-friendly and a cost effective polysaccharide-based sorbent (Na-AVH) medium for Cu(II) removal from polluted water. The effect of the five parameters such as sorbent dose (10-90 mg/100 mL), initial Ni(II) ion concentration (50-290 mg L^-1), contact time duration (5-120 min), temperature (298-338 K), and pH (1-10) on the adsorption capacity were examined. Cu(II) was eliminated by a large percentage using the Na-SH adsorbent. The highest Ni(II) uptake was observed at sorbent 30 mg/100 mL, initial concentration of Cu(II) ions = 130 ^-1, contact time = 30 min, temperature = 298K, and pH =6. Therefore, these conditions were chosen as the most suitable one for the Cu(II) removal from polluted water.