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Material Properties, Characterization, and Application of Microcellular Injection-Molded Polypropylene Reinforced with Oyster Shells for Pb (II) Adsorption Kinetics from Aqueous Solutions
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This review covers the material properties of microplastics, including size, shape, polymer composition, and surface chemistry, alongside the analytical methods used to characterize them. The paper also discusses how these physical and chemical properties influence microplastic behavior in environmental and biological research contexts. It serves as a practical reference for standardizing microplastic characterization across studies.
Microcellular injection-molded oyster shell nano-powder (OSP) with polypropylene (PP) is a potential adsorbent material that can reduce toxic metal ion contamination in groundwater. This study aims to investigate the PP/OSP composite material properties and determine the toxic metal ion adsorption properties of polypropylene/oyster shell nano-powder (PP/OSP) in an aqueous medium. This research focused on lead Pb(II) ion using different parameters such as contact time, pH value, and initial concentrations to optimize the conditions for heavy metal remediation. Characterization techniques such as XRD, SEM, FTIR, and TGA were used to analyze the surface morphology, functional groups, and thermal stability, respectively. The adsorption isotherms were conducted, and the behavior was consistent with the Langmuir and Temkin isotherms. A pseudo-first-order kinetic model was preferred, with a maximum adsorption capacity for lead removal obtained at 13,89 mg/g.
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Material Properties, Characterization, and Application of Microcellular Injection-Molded Polypropylene Reinforced with Oyster Shells for Pb(II) Adsorption Kinetics from Aqueous Solutions
AI summary Read the abstract
Microcellular injection-molded polypropylene composites reinforced with oyster shell nano-powder demonstrated effective adsorption of lead(II) ions from water, with a maximum capacity of 13.89 mg/g following pseudo-first-order kinetics. This is relevant to microplastic pollution research because polypropylene is one of the most common microplastic polymers, and repurposing it as a heavy metal adsorbent offers a circular economy pathway for plastic waste.
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Researchers investigated the adsorption behavior of lead(II) ions onto polyethylene microplastics in freshwater environments by systematically varying initial Pb(II) concentration, pH, and residence time, using scanning electron microscopy and other characterization methods to elucidate the interaction dynamics and sorption mechanisms between this common metal contaminant and microplastic surfaces.
Enhancement of Pb(II) Adsorption by Aged Microplastics in the Presence of Microalgae: Kinetic and Mechanistic
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