Multifunctional MoS₂/GO–chitosan schiff base composite for efficient chromium and copper ion removal from wastewater
Year: 2025
Type: article
Abstract: In this work, we have developed a novel absorbent material using chitosan (CS), and further it was structurally modified via reaction with thiocarbaldehyde, forming a Schiff base intermediate.Simultaneously, graphene oxide was functionalized at the C-6 position of CS through an effective esterification process and composited with the incorporation of molybdenum disulfide (MoS 2 ) nanoparticles to synthesize a hybrid adsorbent material.The resulting material was characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM).The synthesized adsorbent was subjected to the adsorptive removal of Cu(II) and Cr(VI) ions from dilute solutions.The maximum uptake of 66.66 mg/g for Cu(II) and 76.92 mg/g for Cr(VI) were recorded during the adsorption process, further following pseudo-second-order kinetics adsorptive nature and fitted well with the Langmuir isotherm model.Desorption studies indicated the material's reusability, and the thermodynamic studies indicated a spontaneity with an endothermic adsorptive nature.These studies highlight the material's potential as an effective adsorbent as a sustainable approach for efficient environmental remediation.
Source: eXPRESS Polymer Letters
Institution: Adichunchanagiri University
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4416985682
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