We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Effective removal of nanoplastics from water by cellulose/MgAl layered double hydroxides composite beads
AI summary Read the abstract
Researchers developed cellulose and layered double hydroxide composite beads to remove nanoplastics from water. The material achieved a maximum removal capacity of 6.08 mg/g through mechanisms involving pore diffusion, hydrogen bonding, and electrostatic interactions, suggesting it could be a promising adsorbent for micro- and nanoplastic removal from water.
Micro/nanoplastic pollution is an emerging concern all over the world as it has a certain impact on the eco-environment and human health. In this study, cellulose/MgAl layered double hydroxides (LDHs) composite beads were prepared for the removal of polystyrene nanoparticles by utilizing the porous properties of cellulose and the unique positive charge of LDHs. The effects of pH, contact time, initial concentration, temperature, humic acid, and ionic strength on the attachment of nanoplastics were studied. The microstructure characteristics of the beads were also analyzed before and after the attachment of nanoplastics. The results indicate that nanoplastic attachment probably involves pore diffusion, hydrogen bonding, and electrostatic interactions. The attachment behavior can be successfully explained using the pseudo-second-order kinetic model (R = 0.964), Webber-Morris (intra-particle diffusion) model, and Langmuir isotherm model (R = 0.978). The maximum attachment capacity can reach 6.08 mg/g. Therefore, the cellulose/LDHs composite beads can be a promising adsorbent for removing micro/nanoplastics.
More Papers Like This
Cellulose nanofibril-loaded filter paper for highly efficient removal of microplastics via multiscale capture mechanisms
AI summary Read the abstract
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.
Unveiling the removal mechanism of nanoplastics by hydroxyethylene diphosphonic acid modified sodium alginate three-dimensional membrane capsules: A combined experimental and DFT study
AI summary Read the abstract
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.
Functional Polymeric Materials for Micro- and Nanoplastic Removal from Waters
AI summary Read the abstract
Researchers reviewed functional polymeric materials — including hydrogels, polysaccharide aerogels, magnetic composites, and MOF-polymer systems — designed to remove micro- and nanoplastics from water, cataloguing how electrostatic, hydrophobic, and π–π stacking interactions drive removal and identifying scalability, fouling resistance, and standardization as the main barriers to real-world application.
Phase transition of Mg/Al-flocs to Mg/Al-layered double hydroxides during flocculation and polystyrene nanoplastics removal
AI summary Read the abstract
Researchers investigated how magnesium-aluminum layered double hydroxide flocs remove polystyrene nanoplastics from water, finding that electrostatic adsorption and intermolecular forces drive capture efficiency above 90%, with pH-dependent crystal formation playing a key role in the removal mechanism.
Application of Zn/Al layered double hydroxides for the removal of nano-scale plastic debris from aqueous systems
AI summary Read the abstract
Researchers demonstrated that zinc-aluminum layered double hydroxide (LDH) can efficiently adsorb nanoscale plastic debris from freshwater, achieving removal capacities exceeding 160 mg/g in deionized water, though performance dropped significantly under alkaline conditions and in the presence of competing ions like sulfate and phosphate — establishing LDH as a promising but condition-sensitive adsorbent for nanoplastic remediation.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.