Adsorption of Dyes by Chitosan-Selenium Nanoparticles: Recent Developments and Adsorption Mechanisms

Abstract

Most of the dyes are a dangerous class of water contaminants that have affected the environment drastically. Nano-sized compositeis the best decision cutting edge adsorbent for the evacuation of water poisons as such materials are related to the attributes of straightforwardness, adaptability, adequacy, and high surface reactivity. In this investigation, we have synthesized a nanostructured Chitosan-Selenium nanoparticle by green synthesis method using Justicia adhatoda plant leaves extract. Synthesis and characterization of Chitosan-Selenium nanoparticle were described by UV-visible spectroscopy, FTIR spectrum examinations, Particle Size Analysis, and XRD Spectrum analysis. From the outcomes, it was inferred that the Chitosan-Selenium nanoparticle was additionally utilized as an adsorbent for the expulsion of Rhodamine dye from the aqueous solution. Langmuir isotherm model was effectively usedfor the adsorption study of Chitosan-Selenium nanoparticle adsorbent. For the adsorption studies, parameters such asdosages, pH, and temperature were studied. The adsorption process was remarkably fast and reached equilibrium within 24hrs. The isotherm information was steady with the Langmuir model, and the most extreme adsorption limits of the Chitosan-Selenium nanoparticle adsorbent was 34.5mg.g-1 for Rhodamine dye. Accordingly, nanoparticleswill be the only wayfor the future planned water treatment process.

Keywords

• rhodamine, chitosan-selenium nanoparticles, langmuir isotherm, justicia adhatoda