Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges

Polymers, Journal Year: 2024, Volume and Issue: 16(2), P. 294 - 294

Published: Jan. 21, 2024

Essential for human development, water is increasingly polluted by diverse anthropogenic activities, containing contaminants like organic dyes, acids, antibiotics, inorganic salts, and heavy metals. Conventional methods fall short, prompting the exploration of advanced, cost-effective remediation. Recent research focuses on sustainable adsorption, with nano-modifications enhancing adsorbent efficacy against persistent waterborne pollutants. This review delves into recent advancements (2020–2023) in biopolymeric nanocomposites, spotlighting applications biopolymers chitosan wastewater remediation, particularly as adsorbents filtration membranes along their mechanism. The advantages drawbacks various have also been discussed modification synthesizing nanocomposites combining benefits biodegradable polymers nanomaterials enhanced physiochemical mechanical properties application treatment. important functions adsorbing, removing, selectively targeting contaminants, contributing to purification management resources, elaborated on. Furthermore, it outlines reusability current challenges further this burgeoning field environmental applications.

Language: Английский

---

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(9), P. 13185 - 13206

Published: Jan. 19, 2024

Abstract To effectively remove pharmaceuticals, nitroaromatic compounds, and dyes from wastewater, an efficient multifunctional material was created based on silver nanoparticles (Ag) MIL-125-NH 2 (MOF) immobilized viscose fibers (VF) as a support substrate. Firstly, were the surface of via in situ synthesis using trisodium citrate (TSC) reducing agent to create (VF-Ag). Then, VF VF-Ag decorated with titanium metal–organic framework VF-MOF VF-Ag-MOF. The influence VF-Ag, VF-MOF, VF-Ag-MOF sonocatalytic or sonophotocatalytic degradation sulfa drugs investigated. results show that showed excellent activity towards compared VF-MOF. Furthermore, sonophotodegradation dramatic enhancement efficiency sonodegradation. percentage sulfanilamide, sulfadiazine, sulfamethazine presence 65, 90, 95 after 45 min ultrasonic visible light irradiation. catalytic evaluated through conversion p-nitrophenol (4-NP) p-aminophenol (4-AP). demonstrate had highest activity, followed by 4-NP 4-AP 69%. photocatalytic effects elimination methylene blue (MB) dye high removing MB reduction (65%) photodegradation (71%) 60 min. composites structure–activity relationships represent doping within NPs enhanced , which could be explained follows: (i) Due formation Schottky barrier at junction between Ag NPs, photogenerated electrons conduction band supposed quickly transferred valence subsequently, NPs. This considerable electron transferring process, is reported Z scheme heterojunction, can efficiently suppress recombination electron/hole pairs VF-Ag-MIL-125-NH composites. (ii) Sufficient separation charge carriers (holes electrons) avoiding their

Language: Английский

---

Surface modified of chitosan by TiO2@MWCNT nanohybrid for the efficient removal of organic dyes and antibiotics

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 274, P. 133382 - 133382

Published: June 22, 2024

Language: Английский

---

Prospective and potential of magnetic nanoparticles in advanced and sustainable wastewater treatment

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 63, P. 105540 - 105540

Published: May 30, 2024

Language: Английский

---

Biopolymer‑carbonaceous composites, progress, and adsorptive mitigation of water pollutants

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 274, P. 133379 - 133379

Published: June 25, 2024

Language: Английский

---

Recent Advancement and Prospects of Novel Nanomaterial-Based Solid-Phase Extraction (SPE) Techniques

Analytical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 41

Published: May 5, 2024

In this review, the principles and characteristics of solid-phase extraction (SPE) are discussed. The categories nanomaterial-based adsorbents namely metal/metal oxides, magnetic nanoparticles, silica-based two-dimensional (2D) nanomaterials (NMs), polymeric nanotubes, semiconductor NMs, nanoporous materials along with their features discussed followed by evaluating synthetic strategies. Finally, application sorbents for preconcentration drugs, pesticides, heavy metals in biological, food, environmental samples is assessed. Overall, future SPE techniques expected to include advances downsizing, automation, selectivity, sustainability, integration other analytical techniques, resulting more efficient effective sample preparation procedures a variety applications.

Language: Английский

---

A comprehensive review of pressure and osmosis driven membrane processes: Processes, characteristics and materials

Desalination, Journal Year: 2024, Volume and Issue: 598, P. 118427 - 118427

Published: Dec. 11, 2024

Language: Английский

---

Advances in Chitosan-Based Materials for Application in Catalysis and Adsorption of Emerging Contaminants

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8321 - 8321

Published: Sept. 25, 2024

The increasing disposal of emerging contaminants in the environment is a worldwide concern due to environmental impacts, such as toxicity, hormonal disorders, and bioaccumulation. persistence these pollutants water bodies makes conventional pollutant removal techniques inefficient or partial, thus requiring development new, more effective, sustainable remediation technologies. Therefore, chitosan-based materials have emerged promising alternative for application catalysis contaminant removal. biopolymer has functional properties that make it an excellent adsorbent capable removing specific pollutants, pharmaceuticals, microplastics, agricultural pesticides, perfluoroalkyl poly-fluoroalkyl substances, which are increasingly evidence today. this review recent advanced research into using chitosan manufacture catalytic adsorption offers innovative approach treating aqueous environments, significantly reducing their presence impact. It discusses advantages catalyst its role support catalysts biocatalysts. In addition, highlights diversity physical forms chitosan, particles, membranes, hydrogels, possible chemical modifications, highlighting effectiveness applications wide range contaminants.

Language: Английский

---

Enhanced bone regeneration using sodium alginate and polyvinyl alcohol incorporating TiO2 nanoparticles composite film for orthopedic application

Results in Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 102049 - 102049

Published: Jan. 1, 2025

Language: Английский

---

Enhanced photocatalysis of VCrO4-doped TiO2 for dye degradation under UV light

Journal of the Iranian Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Language: Английский

---