Preparation of Biodegradable Carboxymethyl Cellulosebased Hydrogels and Their Dual Application in Fertilizer Controlled Release and Cationic Dye Removal
Year: 2022
Type: article
Abstract: "Contamination of the environment by agrochemicals and organic dyes has become a serious issue. In the current study, bioadsorbents based on carboxymethyl cellulose have been synthesized by performing graft copolymerization of crosslinked poly(acrylamide-co-maleic acid) chains onto carboxymethyl cellulose. The synthesized hydrogels were characterized by FTIR, XRD, SEM and TGA. The swelling properties showed that the hydrogels exhibited thermo- and pH-responsive behavior. The incorporation of fertilizer (ammonium nitrate) into the hydrogel at the time of synthesis was carried out. The fertilizer release mechanism followed the Fickian transport model. The toxic cationic dye (methylene blue) removal study was carried out in dye contaminated aqueous solution at neutral pH. The adsorption kinetics fitted well with the pseudo-second order model. The mechanism of the adsorption process was determined from the intra-particle diffusion model. The aim of this work has been to predict the possibility of using the prepared hydrogels in agriculture and wastewater treatment."
Authors: ", LOUBNA DAOUD, SADJIA BENNOUR
Language: English
Subfield: Agronomy and Crop Science
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W4285100583