We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Optimizing composite microplastics for antibiotics removal in water: An eco-friendly solution
Summary
Researchers investigated the adsorption of antibiotics ciprofloxacin and flucloxacillin onto PET and HDPE microplastics, characterizing the particles via FTIR, SEM, and EDX and fitting isotherm models to show that microplastics can serve as carriers of antibiotic pollutants in aquatic environments.
Microplastics (MPs) have the potential to adsorb and transport organic pollutants in aquatic environments. This study investigated the removal of antibiotics ciprofloxacin (CIP) and flucloxacillin (FLU) from water using microplastics made from polyethylene terephthalate (PET) and high-density polyethylene (HDPE). The microplastics were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, and energy dispersive X-ray analysis. Isotherm models, including Langmuir, Freundlich, Temkin and Jovanovic, were assessed to determine which best fit the sorption data. The equilibrium time for sorption was 30 minutes. Temkin and Jovanovic models showed the best fit for sorption equilibrium data on ciprofloxacin and flucloxacillin, respectively, with R2 values above 0.92 and 0.77, indicating efficient adsorption of ciprofloxacin and flucloxacillin. The heat of adsorption decreased linearly with increased surface coverage, while Jovanovic’s model suggested mechanical interactions between the adsorbate and adsorbent. The study found that the sorption capacity decreases with increasing pH, possibly due to electrostatic interactions, and the adsorption shape resembled a type 2 sinusoidal curve. In conclusion, this study highlights the potential of composite microplastics (PET and HDPE) as low-cost adsorbents for removing ciprofloxacin and flucloxacillin from water. It provides a sustainable solution to antibiotic pollution and plastic waste management.
Sign in to start a discussion.
More Papers Like This
Adsorption of Macrolide Antibiotics and a Metabolite onto Polyethylene Terephthalate and Polyethylene Microplastics in Aquatic Environments
Researchers studied how four macrolide antibiotics and a metabolite adsorb onto polyethylene terephthalate and polyethylene microplastics in water. They found that antibiotic adsorption followed a linear model, with PET showing higher adsorption capacity than polyethylene. The study suggests that microplastics in aquatic environments may serve as carriers for antibiotics, potentially affecting how these pharmaceutical pollutants are distributed in water systems.
Adsorption of antibiotics on microplastics
This study examined the adsorption of antibiotics onto different microplastic types, finding that sorption capacity depended on both the antibiotic's chemical properties and the plastic's surface characteristics, with implications for antibiotic transport in aquatic environments.
Unveiling interactions of norfloxacin with microplastic in surface water by 2D FTIR correlation spectroscopy and X-ray photoelectron spectroscopy analyses
This study characterized the adsorption behavior and mechanisms of the antibiotic norfloxacin onto polyamide microplastics in both simulated and real surface water using 2D FTIR and X-ray photoelectron spectroscopy, finding that water composition significantly affected binding mechanisms and suggesting microplastics can carry antibiotics in natural waterways.
Characterization of microplastics and their interaction with antibiotics in wastewater
Researchers characterized microplastics in wastewater and investigated their interactions with antibiotics, examining how microplastic surfaces adsorb antibiotic compounds and the implications for antibiotic transport and dissemination in wastewater treatment systems.
Investigation of antibiotic clarithromycin adsorption potential on microplastics
Researchers investigated the adsorption potential of the antibiotic clarithromycin onto various microplastic types under controlled laboratory conditions, examining how surface properties and environmental factors influence pharmaceutical-microplastic interactions. The study found that microplastics can adsorb clarithromycin, raising concern about microplastics acting as vectors for antibiotic transport and spread in aquatic environments.