Adsorption of heavy metal ions use chitosan/graphene nanocomposites: A review study

Results in Chemistry, Год журнала: 2024, Номер 7, С. 101332 - 101332

Опубликована: Янв. 1, 2024

The emission of heavy metals in the environment has caused many problems world due to industrialization society and expansion urbanization. Environmental pollution, including greenhouse gases water-soluble toxic pollutants, is a major concern around world. One most important issues protecting health humans, animals plants cleanliness water. Water substance vital for all living things on planet. can be treated several ways, such as desalination, purification, osmosis, disinfection, deposition contaminants. Among these methods, adsorption method advantages over other methods. surface phenomenon during which contaminants are adsorbed adsorbent with physical forces depends factors temperature, pH, concentration contaminants, time phase contact particle size temperature nature pollutants adsorption. Chitosan received widespread attention an because its low cost great potentials. abundant hydroxyl amino groups that bind metal ions. However, it defects sensitivity thermal stability, mechanical strength, limit application chitosan wastewater treatment. functional modified improve performance via crosslinking graft modification. porosity specific area powder form not ideal, therefore, modification been attempted generate nanoparticles hydrogel. also integrated materials (e.g. graphene, zeolite) resulting composite improved performance. This review mainly focuses reports about derivatives remove different metals. preparation strategy, mechanism, affecting adsorbents each type discussed detail. Recent organic (dyes phenol) removal by briefly discussed.

Язык: Английский

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Sustainable chitosan-based materials as heterogeneous catalyst for application in wastewater treatment and water purification: An up-to-date review

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 273, С. 133043 - 133043

Опубликована: Июнь 8, 2024

Язык: Английский

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Exploring the Potential of Rare Earth Doped Carbon Dots: Concepts and Applications

Chemical Engineering Journal Advances, Год журнала: 2024, Номер 17, С. 100583 - 100583

Опубликована: Янв. 6, 2024

Carbon dots (CDs) are nanostructures containing mainly carbon atoms and abundant functional groups. With remarkable adjustable physicochemical properties, CDs have excellent hydrophilicity, photoluminescence (PL), biocompatibility, low toxicity. Although the numerous advantages make a research target for synthesizing advanced materials, some limitations pertinent must be corrected. Rare earth elements (RE) candidates doping CDs, obtaining hybrid materials called RE-CDs to optimize luminescence applicability, quantum yields. Hybrids allow combination of advantageous characteristics both RE, drastically improving their luminous magneto-optical imaging performance opening door practical technological applications. To date, no studies in literature provided in-depth analyses methods used prepare RE-CDs, characterization techniques used, challenges, critical analysis what could improved synthesis by proposing solutions. fill this gap, review initially presents detailed survey RE separately. Subsequently, addressed, as well obtainment, commonly characterizations, recent applications, from analyte detection functionality medical nanodevices. Finally, criticisms suggestions future work also discussed inspire new discoveries about potential derived RE-CDs.

Язык: Английский

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Recent advances and perspectives in functional chitosan-based composites for environmental remediation, energy, and biomedical applications

Progress in Materials Science, Год журнала: 2025, Номер unknown, С. 101460 - 101460

Опубликована: Фев. 1, 2025

Язык: Английский

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A review on the progress of magnetic chitosan-based materials in water purification and solid-phase extraction of contaminants

Separation and Purification Technology, Год журнала: 2023, Номер 330, С. 125521 - 125521

Опубликована: Окт. 27, 2023

Язык: Английский

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Steric and energetic studies on the influence of cellulose on the adsorption effectiveness of Mg trapped hydroxyapatite for enhanced remediation of chlorpyrifos and omethoate pesticides

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 265, С. 130711 - 130711

Опубликована: Март 13, 2024

Язык: Английский

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Chitosan-based magnetic bioadsorbent beads from eucalyptus sawdust waste for the Direct Violet-51 dye remediation: Eco-friendly strategy and statistical optimization

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 254, С. 127764 - 127764

Опубликована: Окт. 30, 2023

Язык: Английский

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Synthesis and characterization of bio-nanocomposite hydrogel beads based on magnetic hydroxyapatite and chitosan: a pH-sensitive drug delivery system for potential implantable anticancer platform

Polymer Bulletin, Год журнала: 2023, Номер 81(8), С. 7499 - 7518

Опубликована: Ноя. 28, 2023

Язык: Английский

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Preparation of pH-sensitive chitosan-magnetic graphene quantum dot bionanocomposite hydrogel beads for drug delivery application: Emphasis on effects nanoparticles

Polyhedron, Год журнала: 2023, Номер 247, С. 116705 - 116705

Опубликована: Окт. 30, 2023

Язык: Английский

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A critical review on ultrasound-assisted adsorption and desorption technology: mechanisms, influencing factors, applications, and prospects

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 114307 - 114307

Опубликована: Сен. 1, 2024

Язык: Английский

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