We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Durably Superhydrophobic Magnetic Cobalt Ferrites for Highly Efficient Oil–Water Separation and Fast Microplastic Removal
AI summary Read the abstract
Researchers developed superhydrophobic magnetic cobalt ferrite particles for removing microplastics from water using a simple coprecipitation method. The particles achieved nearly 100% microplastic removal efficiency with a capture capacity of 2.56 grams per gram, maintained stable performance across pH 1-13, and retained effectiveness after 10 reuse cycles. The study demonstrates a practical, recyclable approach to microplastic remediation in water treatment.
Microplastic pollution has become a primary global concern in the 21st century. Recyclable magnetic particles with micro-nanostructures are considered an efficient and economical way to remove microplastics from water. In this study, superhydrophobic magnetic cobalt ferrite particles were prepared by using a simple coprecipitation method combined with surface functionalization. The micromorphology, chemical composition, hysteresis loop, and surface contact angle of the functionalized cobalt ferrite were characterized. The separation efficiency and absorption capacity of cobalt ferrite particles in water-oil separation and microplastic removal were investigated. The results showed that the saturation magnetic field intensity of cobalt ferrite was 65.52 emu/g, the residual magnetization intensity (Mr) was 18.79 emu/g, and the low coercivity was 799.83 Oe. Cobalt ferrites had stable superhydrophobicity in the pH range of 1-13. The separation efficiency of cobalt ferrite powder for four oil-water mixture separations was higher than 94.2%. The separation efficiency was as high as 99.6% in the separation of the hexane and water mixtures. Due to the synergistic effect of the hydrophobic effect and van der Waals force, the functionalized magnetic cobalt ferrite had a high and stable microplastic removal efficiency and capture capacity. The removal efficiency of microplastics was close to 100%, and the capture capacity was 2.56 g/g. After ten microplastic removal cycles, the removal efficiency reached more than 98%, and the surface contact angle was still greater than 150°.
More Papers Like This
Removal of Micro and Nano Plastics from Water Using Magnetic Nanoparticles
AI summary Read the abstract
Researchers evaluated surface-functionalized magnetic nanoparticles for removing micro- and nanoplastics from water, optimizing pH, dosage, contact time, and agitation to maximize removal efficiency, and found the approach outperforms conventional treatment while offering rapid magnetic separation and nanoparticle reusability.
Superhydrophobic and nanostructured CuFeCo powder alloy for the capture of microplastics
AI summary Read the abstract
Researchers created a magnetic CuFeCo alloy powder with a superhydrophobic surface that can capture high-density polyethylene microplastic fibers from water. The material can be recovered from water using a magnet, offering a reusable approach to microplastic removal.
Sustainable Strategy for Microplastic Mitigation: Fe3O4 Acid-Functionalized Magnetic Nanoparticles for Microplastics Removal
AI summary Read the abstract
Scientists created magnetic nanoparticles coated with citric acid that can remove up to 80% of common microplastics (polyethylene and polypropylene) from water using a simple magnetic separation process. The material can be reused up to five times while still maintaining over 50% removal efficiency. This type of reusable, low-impact technology could help water treatment facilities better remove microplastics, reducing the amount that reaches drinking water supplies.
Superhydrophobic and Sustainable Nanostructured Powdered Iron for the Efficient Separation of Oil-in-Water Emulsions and the Capture of Microplastics
AI summary Read the abstract
This study developed and demonstrated a superhydrophobic powdered iron material that can efficiently separate oil from water and capture microplastic fibers through a single filtration process. This dual-function material could be a cost-effective and sustainable tool for removing two major ocean pollutants simultaneously.
Testing an Iron Oxide Nanoparticle-Based Method for Magnetic Separation of Nanoplastics and Microplastics from Water
AI summary Read the abstract
Researchers tested iron oxide nanoparticles with hydrophobic coatings as a method for magnetically separating micro- and nanoplastics from water. The approach achieved 100% removal of larger microplastics and nearly 90% removal of nanoplastics using a simple permanent magnet, suggesting a viable method for water purification and environmental monitoring.
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.