L-Arginine-Functionalized Chitosan/Poly(Vinylpyrrolidone) Composite as a Novel Adsorbent for Efficient Removal of Hg (II) and Amoxicillin from Aqueous Medium

IF 4.7 3区工程技术 Q2 ENGINEERING, ENVIRONMENTAL

Journal of Polymers and the Environment Pub Date : 2025-03-08 DOI:10.1007/s10924-025-03529-0

Mojtaba Azizi, Mahdi Akhgari, Maryam Esmkhani, Hossein Ghafuri, Shahrzad Javanshir

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Abstract

Biobased adsorbents such as chitosan due to nontoxic nature, biocompatibility, and accessibility can be used to blend with other polymers to develop their physical and chemical features. This study aims to fabricate a highly efficient adsorbent through the functionalization of Chitosan- Poly(Vinylpyrrolidone) (PVP) beads with l-arginine. The prepared nano-sorbent was well characterized via various analytical methods such as FTIR, BET, EDS, XRD, FESEM, and TGA and applied in the removal of amoxicillin and Hg (II). The optimal conditions for higher performance were assessed with the optimization of different factors including pH, dosage, time, and initial concentration for both pollutants. The prepared composite has demonstrated considerable adsorption capacity toward Hg(II) and amoxicillin with the highest adsorption capacities of 313.162 mg/g and 2800 mg/g, respectively, confirming the composite’s various adsorption mechanisms. Accordingly, the composite mostly follows the pseudo-second-order kinetics and the Langmuir adsorption isotherm model. The extraordinary adsorption capacity with the accompaniment of the porous structure of the prepared composite has a promising application for high-performance wastewater treatment.

Graphical abstract

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来源期刊

Journal of Polymers and the Environment 工程技术-高分子科学

CiteScore

9.50

自引率

7.50%

发文量

297

审稿时长

9 months

期刊介绍： The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.