Removal of toxic heavy metal ions from aqueous solutions using jute fibers grafted with acrylic acid by gamma irradiation

Abstract

Jute fibers were grafted with acrylic acid by using the direct gamma irradiation technique, which used as an adsorbent substrate for the toxic heavy metal ions such as Hg2+ and Pb2+ from their aqueous solutions. The structure and crystallinity of the grafted jute fibers were characterized by using Fourier‐transform infrared spectroscopy and X‐ray diffraction, respectively. The effect of pH range of the metal ion solutions, contact time, and the adsorption kinetics of the adsorption process were investigated. The effect of the initial concentration of dissolved metal ions and the adsorption isotherm for both Langmuir and Freundlich adsorption models were also investigated. From the results, it can be concluded that the adsorption process obeys the second‐order kinetic reaction and follows the Langmuir adsorption isotherm model, while, about 86 and 80% of Pb2+ and Hg2+, respectively, were adsorbed at pH 5 and 6 after a contact time of 60 min. J. VINYL ADDIT. TECHNOL., 24:339–346, 2018. © 2017 Society of Plastics Engineers

Improving water desalination: Sustainable grafted cellulose acetate reverse osmosis membrane from Egyptian cotton

“…Various chemical techniques, such as chemical oxidation can be employed for common grafting methods for CTA membranes 19 . 2‐Acrylamidopropane‐2‐methyl sulfonic acid (AMPSA) is characterized by its non‐toxic and non‐biodegradable properties, rendering it asuitable option for use in water purification 20 . The AMPSA coating, when grafted, is designed to create a surface with enhanced hydrophilicity due to water binding ability, aiming to reduce the non‐specific adsorption of diverse proteins.…”

“…19 2-Acrylamidopropane-2-methyl sulfonic acid (AMPSA) is characterized by its non-toxic and non-biodegradable properties, rendering it asuitable option for use in water purification. 20 The AMPSA coating, when grafted, is designed to create a surface with enhanced hydrophilicity due to water binding ability, aiming to reduce the non-specific adsorption of diverse proteins. Additionally, it results in a membrane surface that is highly sulfonated, imparting a negative charge due to the presence of sulfonic acid groups.…”