We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Sorption behaviors of tris-(2,3-dibromopropyl) isocyanurate and hexabromocyclododecanes on polypropylene microplastics
AI summary Read the abstract
Researchers examined the sorption of tris-(2,3-dibromopropyl) isocyanurate and hexabromocyclododecanes (HBCDs) onto polypropylene microplastics in simulated seawater, finding that particle size, temperature, salinity, and concentration all influenced adsorption behavior and the potential for microplastics to act as vectors for these brominated flame retardants.
In recent years, microplastics in oceans have become a serious environmental problem and the focus of attention. In the present study, the sorption of TBC and HBCDs by microplastics in simulated seawater is examined. The effects of particle size, temperature, salinity, and concentration on the adsorption of TBC and HBCDs by microplastics are studied. Results indicate that the first-order adsorption kinetic model is more suitable than the pseudo-second-order kinetic model to describe adsorption. The equilibrium adsorption times are 15 h and 10 h for TBC and HBCDs, respectively. The adsorption capacity increases with the decrease in particle size. The adsorption capacity gradually increases at first and then decreases with the increase in salinity and temperature. The maximum adsorption capacity is at 15 °C and 14% salinity. Compared with the linear and Freundlich models, the Langmuir model is more suitable; this indicates that the main adsorption mechanism might be chemical adsorption.
More Papers Like This
Sorption of polybrominated diphenyl ethers by microplastics
AI summary Read the abstract
This study measured sorption of polybrominated diphenyl ethers (PBDEs) onto four types of microplastics under varying temperature, pH, and salinity conditions, finding that sorption capacity differed substantially by polymer type and environmental conditions.
Sorption of 3,3′,4,4′-tetrachlorobiphenyl by microplastics: A case study of polypropylene
AI summary Read the abstract
This study measured the sorption of a polychlorinated biphenyl (PCB) congener onto polyethylene and polypropylene microplastics, finding that both polymers had high sorption capacity influenced by salinity, temperature, and the presence of other organic matter. The results help predict how microplastics transport PCBs in marine environments and potentially deliver them to organisms that ingest the particles.
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.
Sorption of tetrabromobisphenol A onto microplastics: Behavior, mechanisms, and the effects of sorbent and environmental factors
AI summary Read the abstract
The sorption of the flame retardant tetrabromobisphenol-A (TBBPA) onto four types of microplastics — polyethylene, polypropylene, polystyrene, and polyvinyl chloride — was studied in aqueous environments. Results revealed that polymer type, surface area, and hydrophobic interactions were key factors controlling how much TBBPA accumulates on microplastic surfaces.
Enhanced heavy metal adsorption on microplastics by incorporating flame retardant hexabromocyclododecanes: Mechanisms and potential migration risks.
AI summary Read the abstract
This study examined how the flame retardant hexabromocyclododecane (HBCD) incorporated into polystyrene microplastics affects their adsorption of copper, nickel, and zinc ions. HBCD-containing microplastics adsorbed 3-6 times more heavy metals than plain microplastics, with the bromine-based additive providing additional binding sites, raising concerns about enhanced metal mobilization from brominated plastic debris.
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.