Melt processing of polypropylene-grafted-maleic anhydride/Chitosan polymer blend functionalized with montmorillonite for the removal of lead ions from aqueous solutions

Abstract

Heavy metals such as lead ions pb (ii) are a primary concern in the aquatic environment. these is because Pb (II) is poisonous at a threshold limit above 0.01 mg/L, when consumed over a long period of time. pb (ii) poisoning is very harmful to various organs viz. heart, intestine and kidneys. Besides, it affects bones, tissues, nervous and reproductive systems. Hence, it is important to remove Pb (II) from aquatic environment. polypropylene (pp) and polypropylene grafted-maleic-anhydride (pp-g-MA) based nanocomposites reinforced with Chitosan (CS) and modified montmorillonite clay nanofiller (CL120DT) were successfully fabricated using twin screw melt extrusion for adsorption of Pb (II). The resulting nanocomposites were characterized by XRD to analyze the dispersion properties of the material, teM and SeM for surface morphology, ftiR analysis for the functional groups and tGA for thermal stability. pure pp showed two sharp peaks, but there was decreased in the intensity upon adding of CS and CL120DT. Among series of nanocomposites 2.0 phr and 4.0 phr loaded samples shows better storage module than that of pure pp. the uptake of pb (ii) from lead nitrate aqueous solution by pp + PP-g-MA/CL120DT-CS 2.0 phr nanocomposites followed the Langmuir isotherm model, with a remediation of 90.9% at pH 8 and was verified by pseudo-second order kinetic model. These results indicate that pp + PP-g-MA//CL120DT-CS 2.0 phr nanocomposites performed as a superabsorbent for the pb (ii) ion removal from aqueous solution.

The effect of 3D printing parameters on electrochemical properties of heterogeneous cation exchange membrane

“…The granulate had a melting point of 144.2°C with enthalpy –11.9 J g −1 . This correlates well with results for this type of polypropylene material with respect to the added filler (Moja et al , 2020). Cation exchange resin used in this work is made of functionalized polystyrene crosslinked with divinylbenzene.…”

Magnetite‐Decorated Reduced Graphene Oxide: A Study of Multifunctional Antibacterial and Removal of Lead Ion Properties for Water Disinfection Applications

“…[9,10] It can cause many adverse effects like cancer, hepatitis, nephritic syndrome, cholera, typhoid fever, ringworms, dysentery, skin irritation, and liver problems. [11,12] The objective of the present study is to present carbon-based nanomaterial as a competent candidate as a remedy for both retract heavy elements and microbiological pathogens in polluted water bodies. The reuse of contaminated water, whether for…”

“…[ 9,10 ] It can cause many adverse effects like cancer, hepatitis, nephritic syndrome, cholera, typhoid fever, ringworms, dysentery, skin irritation, and liver problems. [ 11,12 ]…”

“…The capacity of removal of bacteria and metal ions from polluted water is also essential in real‐time applications. The past two decades research reports claimed that the removal of organic, inorganic and biological toxins using nanomaterials [ 12 ] such as metal‐ organic frameworks, [ 13 ] activated carbon, [ 14 ] decorated metal oxide/carbon nanotube [ 15,16 ] and some of the advanced materials like nanostructured metal oxides. [ 17–20 ] Some of these reports claimed that engineered nanomaterials exhibited inferior adsorption capacities, poor reusability, and poor recovery.…”

Ultra-efficient Copper Ions Adsorption of Chitosan-montmorillonite Composite Aerogel for Wastewater Treatment

“…techniques, and reverse osmosis (Moja et al 2020). Compared with others, adsorption is a simple, easy-to-operate, and inexpensive way to treat heavy metal ions (El-Kousy et al 2020).…”