Abstract
A novel approach was used to synthesize karaya gum-Cu, Ni nanoparticles based bionanocomposite by microwave irradiation method. Synthesized bionanocomposite was characterized by different techniques like Fourier transform infrared spectroscopy (FTIR), Field Emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), High Resolution Transmission Electron Microscopy (HR-TEM), and Energy Dispersive X-Ray Analysis (EDX). The optimized condition for Karaya Gum-Cu-Ni–Bionanocomposite synthesis was the amount of solvent 4 ml, pH 10, time 20 s, power 100 W, monomer, and cross-linker concentration 14.11 mol L-1 and 0.1135 mol L-1, respectively. The maximum % swelling was found to be 1,176%. Different reaction parameters were optimized to get the maximum adsorption of malachite green dye. The maximum dye adsorption was found to be 94.1%. Different models for kinetics and isotherms were applied to analyze the adsorption data. Malachite green sorption onto bionanocomposite is best defined by pseudo second order kinetics, signifying that the dye uptake by the nanocomposite was organized by chemisorption method involving sharing of electrons in-between the cationic part of the dye as well as the anionic part of the bionanocomposite. Correlation coefficient (R2) was close to unity (0.99569). The R2 values of nanocomposite best fit in the Freundlich adsorption isotherm. The study confirmed the synthesized bionanocomposite was an efficient adsorbent for the adsorption of the harmful malachite green dye.
Highlights
The utilization of synthetic dyes by industries all over the world is negatively impacting living beings to a disquieting level, as these such pollutants contaminate water bodies
The different reaction parameters were optimized with respect to percentage swelling and the details of the outcome are given below: 3.1.1 Impact of Reaction Time It is clear from Figure 6A that the Ps augmented along with amplification in reaction time and reached a maximum value of 874% in 20 s, respectively
This study showed synthesized an efficient bionanocomposite of Karya gum and Cu-Ni nanocomposite
Summary
The utilization of synthetic dyes by industries all over the world is negatively impacting living beings to a disquieting level, as these such pollutants contaminate water bodies. Various methods have been employed for the removal of dye molecules from water resources such as sorption, oxidation, degradation with microorganisms, and electrochemical methods Out of all these methods, sorption is a is highly efficient and an easy method for the removal of dye from wastewater. The synthesis nanocomposite is an efficient dye removal mechanism in an experiment in which the adsorbent was exposed to methylene blue dye. This experimental work matched with Pseudo second order and Freundlich isotherm (Hu et al, 2018; Chowdhury et al, 2019). Karaya gum has very good adsorption efficiency and when it is combined with Cu-Ni NPs, its efficiency is enhanced This synthesized bionanocomposite was used as an adsorbent for the adsorption of harmful malachite green dye
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