Removal of emerging nanoplastics pollutants by mechanically robust and multifunctional montmorillonite-reinforced polyethyleneimine-functionalized sodium alginate-mixed matrix three-dimensional membrane capsules: Performance, mechanism insights, and feasibility assessment

Highly efficient and biodegradable alginate-Polydopamine-mixed matrix three-dimensional membrane capsules for the broad-Spectrum removal of diverse Nanoplastics in complex water environments

Unveiling the removal mechanism of nanoplastics by hydroxyethylene diphosphonic acid modified sodium alginate three-dimensional membrane capsules: A combined experimental and DFT study

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Researchers synthesized three-dimensional sodium alginate membrane capsules modified with hydroxyethylene diphosphonic acid to capture nanoplastics from water, achieving over 80% removal efficiency across seven reuse cycles through a combination of hydrogen bonding, ligand exchange, and electrostatic attraction — with size selectivity favoring sub-100 nm particles.

Multifunctional sodium alginate/chitosan-modified graphene oxide reinforced membrane for simultaneous removal of nanoplastics, emulsified oil, and dyes in water

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Researchers developed a bioinspired three-layer membrane using sodium alginate, graphene oxide, and chitosan that removed over 99% of nanoplastics, emulsified oil, and dyes from water simultaneously, with excellent stability in extreme pH conditions and good recyclability.

Tailored 3D-printed viscoelastic adsorbents for efficient removal of micro- and nanoplastics in water

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This research evaluated polyglycolic acid (PGA) as a biodegradable packaging material, assessing its barrier properties, mechanical strength, and degradation performance. The study positions PGA as a promising alternative to conventional food packaging plastics with superior biodegradability under industrial composting conditions.