We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Sorption of polyhalogenated carbazoles (PHCs) to microplastics
AI summary Read the abstract
Researchers investigated the sorption of five polyhalogenated carbazoles onto polyethylene, polypropylene, and polyvinyl chloride microplastics, finding that sorption capacity varied with plastic type and carbazole structure, indicating that microplastics can act as vectors for these emerging halogenated organic contaminants.
The sorption of 5 Polyhalogenated carbazoles (PHCs) [3,6-dibromocarbazole (3,6-BCZ), 3,6-dichlorocarbazole (3,6-CCZ), 3,6-diiodocarbazole (3,6-ICZ), 2,7-dibromocarbazole (2,7-BCZ) and 3-bromocarbazole (3-BCZ)] on to three microplastics [polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC)] in a simulated seawater system are studied. Sorption isotherms demonstrated that PVC had the maximum sorption capacity, which can be attributed to polar-polar interaction. The sorption kinetics model showed that the sorption process was controlled by both intraparticle and film diffusion. The sorption of PHCs to microplastics was significantly influenced by temperature, the sorption capacity first increased gradually and then decreased with the increasing temperature. Increasing the salinity decreased the sorption of PHCs onto PP, PE, PVC microplastics. Our results indicated that all three kinds of microplastics can serve as carriers for PHCs in the aquatic environment, which put marine ecosystems at higher risks.
More Papers Like This
Sorption of 3,6-dibromocarbazole and 1,3,6,8-tetrabromocarbazole by microplastics
AI summary Read the abstract
Two brominated carbazole pollutants were found to readily adsorb onto polypropylene microplastics in seawater, with smaller plastic particles absorbing more chemical per unit mass. This demonstrates that microplastics can concentrate brominated organic pollutants from seawater and potentially deliver them to marine organisms.
Microplastic-water partitioning of two states halogenated PAHs: Solute and sol
AI summary Read the abstract
This study examined how halogenated polycyclic aromatic hydrocarbons (PAHs) partition between microplastics and water, finding that plastic type and contaminant chemistry both influence sorption behavior. Understanding how microplastics absorb and transport toxic chemicals is important for assessing the ecological risks they pose.
Sorption of five organic compounds by polar and nonpolar microplastics
AI summary Read the abstract
Polar and biodegradable microplastics, including polyurethane and polycaprolactone, showed significant sorption of hydrophobic organic contaminants, with hydrogen bonding playing a greater role than for conventional nonpolar plastics. The findings extend understanding of how a wider range of plastic types can act as vectors for environmental pollutants.
A Comparative Sorption Study for Phenol & Tricholorophenol onto Polyethylene Type Microplastics
AI summary Read the abstract
Researchers compared how phenol and 2,3,6-trichlorophenol sorb onto polyethylene microplastics, finding that the more hydrophobic chlorinated compound had significantly higher affinity for the plastic surface. The study contributes to understanding how microplastics may transport and concentrate organic pollutants in freshwater environments.
Adsorption and Desorption Behaviour of Polychlorinated Biphenyls onto Microplastics’ Surfaces in Water/Sediment Systems
AI summary Read the abstract
Researchers evaluated the adsorption and desorption behavior of polychlorinated biphenyls (PCBs) onto polystyrene, polyethylene, and polyethylene terephthalate microplastics of varying sizes in marine water/sediment systems. Results showed that polymer type and particle size influenced PCB binding capacity, with microplastics acting as potential vectors for transferring persistent organic pollutants to marine biota through the food chain.
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.