Silk Nanofibrillar Aerogel as Sustainable Filters for Environmental Purification

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Abstract Environmental pollution threatens human health and ecosystem sustainability, boosting a huge demand for filters. However, the petroleum‐based filters are likewise environmentally hazardous since their non‐degradability results in disposal landfills. Although biodegradable synthetic polymers have been contemplated as alternative filtration materials, utilization fabricating ultrafine fibers to construct effective 3D remains an obstacle. In this study, all‐biomass nanofibrous developed with versatility biodegradability based on silk nanofibrils (SNFs). Bulk aerogels tunable structures can be fabricated through solvent‐mediated ice crystal growth by using SNFs building block. The SNF‐based aerogel exhibited excellent water purification performance, evidenced ability remove micro‐nano plastics, organic dyes, heavy metal ions. practicability of filter system is demonstrated successful production purified from simulated polluted dirty river water. Moreover, SNF further proven superior air performance against PM 0.3 oily smoking. Furthermore, has low environmental impact it safely biodegraded natural environment, ratio 73.8% after one year landfill. This work provides path toward sustainable treatment pollution.

Language: Английский

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Nano/microplastics: Fragmentation, interaction with co-existing pollutants and their removal from wastewater using membrane processes

Chemosphere, Journal Year: 2022, Volume and Issue: 309, P. 136682 - 136682

Published: Oct. 1, 2022

Language: Английский

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Feasibility of rapid gravity filtration and membrane ultrafiltration for the removal of microplastics and microlitter in sewage and wastewater from plastic industry

Journal of Water Process Engineering, Journal Year: 2022, Volume and Issue: 51, P. 103452 - 103452

Published: Dec. 27, 2022

Wastewater treatment plants (WWTPs) act as barriers in reducing uncontrolled microplastic and microlitter (MP-ML) emissions from both urban industrial wastewaters. Despite removing most of the MP-ML, large quantities this waste still enter environment through WWTP effluents, which means further post-treatment technologies are needed. This study contains a technical evaluation MP-ML removal wastewater (UWW) recycling plastic industry (PIWW) using two different pilot-scale systems: rapid gravity filtration (RGF) ultrafiltration (UF) membranes. The mass concentrations contained UWW PIWW were measured by simplified method adapted for long-term monitoring operations. was validated on standard samples. RGF system consumed less energy than UF treating (0.097 kWh·m−3 0.156 kWh·m−3, respectively), not efficient enough to properly decrease risk (39.5 ± 34.6 % removal). With respect PIWW, consumption plant decreased up 0.059 kWh·m−3. combination expected reduce membrane fouling but it did show significant differences mid-term operation.

Language: Английский

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Removal of nanoplastics from aqueous solution by aggregation using reusable magnetic biochar modified with cetyltrimethylammonium bromide

Environmental Pollution, Journal Year: 2022, Volume and Issue: 318, P. 120897 - 120897

Published: Dec. 17, 2022

Language: Английский

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Hardwood vessel-inspired chitosan-based sponge with superior compressibility, superfast adsorption and remarkable recyclability for microplastics removal in water

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146130 - 146130

Published: Sept. 19, 2023

Language: Английский

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Technological approaches for removal of microplastics and nanoplastics in the environment

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112084 - 112084

Published: Feb. 2, 2024

Language: Английский

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State-of-the-art strategies for microplastics mitigation in aquatic environments: Identification, technological innovations, and prospects for advancement

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 61, P. 105336 - 105336

Published: April 23, 2024

Language: Английский

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The growing threats and mitigation of environmental microplastics

Environmental Chemistry and Ecotoxicology, Journal Year: 2024, Volume and Issue: 6, P. 259 - 268

Published: Jan. 1, 2024

Microplastics (MPs) are emerging pollutants that constitutes a very serious environmental nuisance and menace to the globe in last decade. The damages from MPs include ecological imbalance of marine environment, flora, fauna these yet be understood African environment. sustainable development goals 14 15 (SDGs #14 #15) seek address challenges combating sustainability terrestrial lives respectively. Understanding pollution dynamics environment is crucial globally particular Africa soon. Hence, it imperative arrest this challenge as swiftly possible before collapse entire biomes. have been detected several matrices; soil, air, aquatic environments, plants, fishes, animals, humans. Their different source routes: ingestion, inhalation, dermal contact contribute an adverse effect (toxicity) all spheres life. To humans, limits their movement, leads shedding scales, inhibits growth, suppresses immune system, causes inflammation, coagulation, also blood cell toxicity among others, on long-run mortality was noted review. There physical, chemical biological transformation microplastics age, leading toxicity, mobility, great interaction. This has contributed high MP intake by fish other animals. For reason, researchers should delve into simpler cheaper ways analyzing its presence develop remediation strategies curb

Language: Английский

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Hydrophilic membranes for effective removal of PFAS from water: Anti-fouling, durability, and reusability

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 348, P. 127379 - 127379

Published: April 9, 2024

Language: Английский

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Evaluating the performance of the metal organic framework-based ultrafiltration membrane for nanoplastics removal

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128658 - 128658

Published: July 2, 2024

Nanoplastics (NPs) have emerged as pollutants with detrimental impacts on human and aquatic health. While commercial ultrafiltration (UF) membranes in wastewater treatment plants can effectively remove NPs, their hydrophobic nature limits water permeability leads to membrane fouling. Herein, we fabricated polyethersulfone (PES)/polyamide (PA) UF composite using the MIL-101(Cr)-based metal–organic frameworks (MOF) nanoparticles for removal of two types NPs (polyethylene polystyrene) from synthetic wastewater. Results show that presence more channels MOF particles shortened pathways molecules, thereby increasing by 22 % over pure PES/PA membranes. An optimal dosage 0.2 w/v% achieved a high-water 1204 L/m2/h/bar 99 both crossflow filtration system. The high efficiency is due electrostatic repulsion between negatively charged surface coupled sieving mechanism. Furthermore, flux recovery ratio 98 up six cycles facilitated quick wetting hydrophilic decreased foulant adsorption, confirms reusability membrane. Additionally, stability PA/PES-based evenly distributed various pH ranges (2–10) also inhibits nanoparticle leaching. Therefore, findings highlight potential MOF-based removing achieving permeability.

Language: Английский

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