Recent Advancements in the Field of Chitosan/Cellulose-Based Nanocomposites for Maximizing Arsenic Removal from Aqueous Environment
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Date
2024-09
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Abstract
Water remediation, acknowledged as a significant
scientific topic, guarantees the safety of drinking water, considering
the diverse range of pollutants that can contaminate it. Among
these pollutants, arsenic stands out as a particularly severe threat to
human health, significantly compromising the overall quality of life.
Despite widespread awareness of the harmful effects of arsenic
poisoning, there remains a scarcity of literature on the utilization of
biobased polymers as sustainable alternatives for comprehensive
arsenic removal in practical concern. Cellulose and chitosan, two of
the most prevalent biopolymers in nature, provide a wide range of
potential benefits in cutting-edge industries, including water
remediation. Nanocomposites derived from cellulose and chitosan
offer numerous advantages over their larger equivalents, including
high chelating properties, cost-effective production, strength,
integrity during usage, and the potential to close the recycling
loop. Within the sphere of arsenic remediation, this Review outlines
the selection criteria for novel cellulose/chitosan-nanocomposites,
such as scalability in synthesis, complete arsenic removal, and recyclability for technical significance. Especially, it aims to give an
overview of the historical development of research in cellulose and chitosan, techniques for enhancing their performance, the current
state of the art of the field, and the mechanisms underlying the adsorption of arsenic using cellulose/chitosan nanocomposites.
Additionally, it extensively discusses the impact of shape and size on adsorbent efficiency, highlighting the crucial role of physical
characteristics in optimizing performance for practical applications. Furthermore, this Review addresses regeneration, reuse, and
future prospects for chitosan/cellulose-nanocomposites, which bear practical relevance. Therefore, this Review underscores the
significant research gap and offers insights into refining the structural features of adsorbents to improve total inorganic arsenic
removal, thereby facilitating the transition of green-material-based technology into operational use.