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Bamboo Fiber Paper-Based Filter Material for Fastand Efficient Capture of Microplastics
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Researchers developed an eco-friendly bamboo-derived cellulose paper filter that achieved 98% capture efficiency for polystyrene microplastics with an exceptionally high filtration flux of 21,167 L per square meter per hour, following an intermediate blocking model with excellent reusability over multiple cycles.
Aiming at the hot issue of global microplastics (MPs) pollution, an ecofriendly paper-based filter from bamboo-derived cellulose was developed through mechanical processing and traditional papermaking formation technology. The paper-based filter exhibited a stable capture efficiency of 98% and exceptional filtration flux of 21167 L m–2 h–1 for amine-modified polystyrene (PS-NH2, 5 μm). Remarkably, filtration kinetics followed the intermediate blocking model (R2 = 0.99), and the filter demonstrated excellent reusability, maintaining 99% efficiency after 10 cycles. Furthermore, it demonstrated remarkable universal adaptability, achieving >95% removal for polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET), and also exhibited exceptional purification of three natural water samples. The superior capture performance stemmed from synergistic multiscale interactions between the microstructure and MPs, including physical interception, MP self-sedimentation effect, electrostatic interaction, hydrogen bonding, and π-π interactions. Life cycle assessment (LCA) confirmed a 48.8% reduction in global warming potential (GWP) unit energy consumption compared to conventional polymeric filters, with electricity and water consumption identified as primary environmental impacts via sensitivity and contribution analysis. Furthermore, a sustainable strategy was proposed to achieve MPs recovery and utilization. This work provides an efficient and environmentally friendly solution for microplastic remediation with significant potential for drinking water purification and MP separation in complex aquatic environments.
More Papers Like This
Bamboo Fiber Paper-Based Filter Material for Fast and Efficient Capture of Microplastics
AI summary Read the abstract
Researchers developed an eco-friendly bamboo-derived cellulose paper filter that achieved 98% microplastic capture efficiency and high filtration flux of 21,167 L/m²/h for polystyrene particles, with greater than 95% removal for PP, PE, and PET. Life cycle assessment confirmed a 48.8% reduction in global warming potential compared to conventional polymer filters, with the filter maintaining 99% efficiency after 10 reuse cycles.
Scalable Bamboo Fiber/Microfibrillated Cellulose Foam via Solvent‐Exchange‐Assisted Ambient Drying for Highly Efficient Microplastics Capture
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Researchers developed a scalable bamboo fiber and microfibrillated cellulose foam for capturing microplastics from water, achieving 99.4% filtration efficiency with high flow rates. The foam was fabricated using an energy-efficient ambient drying process without toxic crosslinkers, and demonstrated excellent reusability and effectiveness across various plastic types and real water samples. The study presents a sustainable, high-performance approach to microplastic remediation in aquatic environments.
Plant-Based Fiber Filter Layers Enabling Simultaneous Polystyrene Nanoplastics Removal and In Situ Hydrophobic Paper Fabrication
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Scientists created a simple filter made from plant fibers that removes over 98% of nanoplastics (tiny plastic particles too small to see) from water, which matters because these particles have been linked to health risks and are notoriously hard to filter out with conventional methods. As a bonus, the leftover filter material can be turned into water-resistant paper, meaning this could become an eco-friendly way to both clean up water and produce useful materials without waste.
Cellulose nanofibril-loaded filter paper for highly efficient removal of microplastics via multiscale capture mechanisms
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Researchers fabricated a cellulose nanofibril-loaded filter paper composite and found it achieved over 93% removal efficiency for polystyrene, polypropylene, and PET microplastics through a combination of physical interception, electrostatic interactions, and hydrogen bonding.
High‐Throughput Removal of Micro(Nano)Plastics With 99.8% Rejection From Water Using Cationic Cellulose Filter‐Paper Consisting of Uniform Microfibers
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Scientists created a new filter paper, made from plant-based cellulose with a special positive electrical charge, that can trap 99.8% of micro- and nanoplastics from water, tiny plastic particles too small to see that have been found in our blood, organs, and even brains. Unlike regular filters, this one lets water flow through fast while still catching nearly all the plastic, and it can be cleaned and reused at least 10 times, offering a promising, eco-friendly way to reduce our plastic exposure from drinking water.
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