Chitosan and chitosan derivatives: Recent advancements in production and applications in environmental remediation

Issahaku, Ibrahim; Tetteh, Isaac Kow; Tetteh, Antonia Y.

doi:10.1016/j.envadv.2023.100351

Cited by 27 publications

(10 citation statements)

References 128 publications

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“…Developing cost-effective synthesis methods and improving manufacturing processes are essential 10 Air, Soil and Water Research for large-scale implementation. Stability and durability require attention involving the exploration of composite materials, coatings, or encapsulation techniques (Issahaku et al, 2023). Real-world performance should be assessed through field trials and case studies in diverse environmental conditions to uncover practical challenges and limitations of CS-based adsorbents.…”

Section: Applications and Challengesmentioning

confidence: 99%

“…CS and CS-based materials, such as CS-modified zeolites, CS beads, CS powder, and CS-coated sand, have demonstrated efficacy in removing HMs from soil and water (Issahaku et al, 2023). Incorporating CS into contaminated soil can enhance binding, reduce mobility, and transform contaminants into less toxic forms, mitigating their environmental impact.…”

Section: Applications and Challengesmentioning

confidence: 99%

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Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Ullah,

Hayat,

Qiao

2023

Air, Soil and Water Research

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Cadmium (Cd) and arsenic (As) are both potentially toxic heavy metals (HMs) found ubiquitously in the environment. These HMs are prevalent in soil due to natural occurrences or anthropogenic activities. Co-contamination of Cd and As in soil is a major concern for plant and human health as well as ecosystem sustainability due to their hazardous properties. Therefore, a global imperative is developing improved technologies for managing and remediating soil co-contaminated with Cd and As. One effective solution for remediating Cd/As co-contaminated soil involves the utilization of natural biopolymers and biostimulants, such as chitosan (CS). CS offers distinct advantages, including its ready availability, biodegradability, biocompatibility, environmental friendliness, and cost-effectiveness when compared to alternative adsorbents. The adsorption mechanism of CS and CS-based adsorbents for Cd and As primarily relies on electrostatic attraction, complexation, and ion exchange. This review article provides a comprehensive overview of Cd and As co-contamination in soil, elucidating their sources, distribution patterns, exposure pathways, and the prospective remediation approaches employing CS biostimulants and CS-based adsorbents. Furthermore, it summarizes recent studies investigating the adsorption of Cd/As by CS, the factors influencing the adsorption efficiency and the challenges associated with the utilization of CS and CS-based adsorbents. In conclusion, the review underscores the need for further research to concurrently remediate Cd and As co-contaminated soil, enhance the adsorption efficiency of CS and CS-based composites, and broaden their practical applicability for remediating co-contaminated soils.

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Section: Applications and Challengesmentioning

confidence: 99%

Section: Applications and Challengesmentioning

confidence: 99%

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Ullah,

Hayat,

Qiao

2023

Air, Soil and Water Research

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“…The presence of an additional functional group (amino group) makes it possible to obtain N-derivatives of various types from chitosan [ 1 ], which significantly expands the scope of its application. Due to the presence of a positive charge, it has an affinity for the sorption of molecules of proteins [ 13 ], pesticides, dyes, and lipids, and the chelation of metal ions and radionuclides [ 27 , 28 ]. Products based on chitosan are biodegradable and biocompatible.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Heterogeneous Alkaline Deacetylation of Chitin: A Review

et al. 2023

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This review provides an analysis of experimental results on the study of alkaline heterogeneous deacetylation of chitin obtained by the authors and also published in the literature. A detailed analysis of the reaction kinetics was carried out considering the influence of numerous factors: reaction reversibility, crystallinity and porosity of chitin, changes in chitin morphology during washing, alkali concentration, diffusion of hydroxide ions, and hydration of reacting particles. A mechanism for the chitin deacetylation reaction is proposed, taking into account its kinetic features in which the decisive role is assigned to the effects of hydration. It has been shown that the rate of chitin deacetylation increases with a decrease in the degree of hydration of hydroxide ions in a concentrated alkali solution. When the alkali concentration is less than the limit of complete hydration, the reaction practically does not occur. Hypotheses have been put forward to explain the decrease in the rate of the reaction in the second flat portion of the kinetic curve. The first hypothesis is the formation of “free” water, leading to the hydration of chitin molecules and a decrease in the reaction rate. The second hypothesis postulates the formation of a stable amide anion of chitosan, which prevents the nucleophilic attack of the chitin macromolecule by hydroxide ions.

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“…[75][76][77][78][79][80][81][82][83][84][85][86][87][88] Chitosan now plays a vital role in different elds, including medicine, drug delivery, food packaging, cosmetics, water treatment, membranes, fuel cells, hydrogels, adhesives, and surface conditioners. [89][90][91][92][93][94][95][96][97] Indeed, the NH 2 groups with high chelating ability as well as the proper geometry of neighboring OH groups in the chitosan scaffold along with its insolubility in the majority of organic solvents and water make it the best candidate for using in the preparation of robust supramolecular heterogeneous catalysts by both academia and the chemical industry, especially in the pharmaceutical sector. Therefore, pristine chitosan and its modied structures have received considerable attention in various catalytic systems for different organic transformations.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Pd@methioine-EDTA-chitosan nanocomposite: an effective and recyclable bio-based and eco-friendly catalyst for the green Heck cross-coupling reaction under mild conditions

2023

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Chitosan and chitosan derivatives: Recent advancements in production and applications in environmental remediation

Cited by 27 publications

References 128 publications

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Chitosan-Based Biostimulation: A Novel Approach for Simultaneous Remediation of Co-Existing Cadmium and Arsenic Contamination in Soil

Mechanism of Heterogeneous Alkaline Deacetylation of Chitin: A Review

Supramolecular Pd@methioine-EDTA-chitosan nanocomposite: an effective and recyclable bio-based and eco-friendly catalyst for the green Heck cross-coupling reaction under mild conditions

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