Shahnaz Sultana*, Nazia Rahman, Nabul Sardar, Mobin Sikder, Sapan Kumar Sen, SM Shakila Satter Rini and Mim Mostakima Mila
Although Copper (Cu) is a very beneficial metal, having too much of it in the body can cause lung issues, severe anemia, nausea, and vomiting. In order to extract Cu (II) ions from aqueous solution, an adsorbent was constructed in this study employing pre-irradiation grafted ETFE film. The grafting method was used to binary monomers of Sodium Styrene Sulfonate (SSS) and Acrylic Acid (AA), where NaCl served as an additive. The grafted polymer was also subjected to studies of tensile strength, water uptake, surface area extension, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared spectroscopy (FTIR). The adsorption of Cu (II) was investigated with respect to pH, starting metal ion concentrations, contact time, monomer concentrations, and temperature. With 50 kGy of radiation dose, 4% NaCl and 30% of monomer solution (SSS: AA=1:2) in water generated the highest graft yield of 470%. The maximum adsorption capacity (412 mg g-1) was discovered with an initial concentration of 2500 ppm, a pH of 4.86, and a contact time of 24 hours at room temperature (25°C). A monolayer adsorption was recommended by the good linking between experimental data and the Langmuir Isotherm model. The kinetic adsorption data closely fitted with the pseudo second order reaction. Due to its increased adsorption capacity and reusability, the synthesized new grafted polymer can be considered as an efficient adsorbent for Cu (II) removal from wastewater.
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