Adsorption interactions between typical microplastics and enrofloxacin: Relevant contributions to the mechanism

Li, Xiang; Jiang, Huating; Zhu, Liya; Tang, Junqian; Liu, Zhihua; Dai, Yingjie

doi:10.1016/j.chemosphere.2024.141181

Cited by 43 publications

(2 citation statements)

References 58 publications

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“…Liu et al highlighted that ciprofloxacin adsorbs onto PS and PVC MPs mainly through partitioning, as indicated by the linear nature of their adsorption isotherms [46]. PS engages generally in van der Waals forces and specific π-π interactions, whereas PE relies solely on van der Waals forces, resulting in greater adsorption capacities for ciprofloxacin, trimethoprim, and sulfadiazine on PS [27,30,35]. Chen et al proposed that the adsorption of tetracyclines on PE is predominantly governed by van der Waals forces and microporous filling mechanisms.…”

Section: Bonds Involved In Adsorptionmentioning

confidence: 99%

Microplastics and Antibiotics in Aquatic Environments: A Review of Their Interactions and Ecotoxicological Implications

Tang

2024

Trop. Aqua. Soil Pollut.

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Microplastics and antibiotics are two significant emerging pollutants found together in water bodies, raising concerns about their mutual effects. This review delves into how microplastics and antibiotics interact in aqueous environments and the ecotoxicological implications of such interactions, particularly the bioavailability of antibiotics and the prevalence of antibiotic-resistance genes. It outlines that antibiotics attach to microplastics primarily through hydrophobic, hydrogen-bonding, and electrostatic interactions. Other bonds, comprising halogen bonding, cation−π interaction, and negative charge-assisted hydrogen bonds, may also be involved to better explain antibiotic adsorption patterns. The adsorption of antibiotics to microplastics often follows the pseudo-second-order kinetic model and in some instances, the pseudo-first-order kinetic model. The common adsorption isotherms governing this interaction are the linear and Freundlich models. Microplastics may increase the biodegradation of adsorbed antibiotics due to the presence of antibiotic-degrading bacteria in the biofilms. They could also hamper direct photodegradation but facilitate indirect photodegradation of adsorbed antibiotics. However, their photodegradative effect remains inconclusive. Microplastics and antibiotics exhibit significant toxicity to algae, while their effects on fish and daphnia are less noticeable, suggesting that their combination does not pose an immediate threat to the well-being and proliferation of larger aquatic organisms. In some instances, microplastics reduce the deleterious effects of antibiotics on aquatic life. Microplastics serve as catalysts for gene transfer, enhancing the propagation of antibiotic-resistance genes in these ecosystems. This review underscores the importance of understanding the regulatory mechanisms of microplastics on antibiotic-resistance gene diversity, particularly at the gene expression level.

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Section: Bonds Involved In Adsorptionmentioning

confidence: 99%

Microplastics and Antibiotics in Aquatic Environments: A Review of Their Interactions and Ecotoxicological Implications

Tang

2024

Trop. Aqua. Soil Pollut.

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“…Presently, the treatment technologies commonly employed for NOR and other antibiotics include adsorption, biological treatment, oxidation processes, and membrane filtration . Thereinto, the adsorption technique has gained significant attention because of its efficiency, simplicity, cost-effectiveness, and nontoxic nature .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Adsorption of Norfloxacin by Low-Cost Biochar: Performance, Mechanisms, and Machine Learning-Assisted Understanding

Zhang,

Li,

Guo

et al. 2024

ACS Omega

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This study employed potassium carbonate (K 2 CO 3 ) activation using ball milling in conjunction with pyrolysis to produce biochar from one traditional Chinese herbal medicine Atropa belladonna L. (ABL) residue. The resulting biochar KBC 800 was found to possess a high specific surface area (S BET = 1638 m 2 /g) and pore volume (1.07 cm 3 /g), making it effective for removing norfloxacin (NOR) from wastewater. Batch adsorption tests confirmed its effectiveness in eliminating NOR, along with its excellent resistance to interference from impurity ions or antibiotics. Notably, the maximum experimental NOR adsorption capacity on KBC 800 was 666.2 mg/g at 328 K, surpassing those of other biochar materials reported. The spontaneous and endothermic adsorption of NOR on KBC 800 could be better suited to the Sips model. Additionally, KBC 800 adsorbs NOR mainly by pore filling, with electrostatic attraction, π−π EDA interactions, and hydrogen bonds also contributing significantly. The machine learning model revealed that NOR adsorption on the biochar was significantly affected by the initial concentration, followed by S BET and average pore size. Based on the random forest model, it is demonstrated that biochar is able to adsorb NOR effectively. It is noteworthy that the use of low-cost pharmaceutical wastes to produce adsorbents for emerging contaminants such as antibiotics could have greater potential for future practical applications under the ongoing dual carbon policy.

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Polycyclic aromatic hydrocarbon derivatives onto polar microplastics of polyurethane: equilibrium, thermodynamics, and kinetics of monolayer-multilayer adsorption

Frescura,

de Menezes,

Junior

et al. 2024

Environ Sci Pollut Res

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Adsorption interactions between typical microplastics and enrofloxacin: Relevant contributions to the mechanism

Cited by 43 publications

References 58 publications

Microplastics and Antibiotics in Aquatic Environments: A Review of Their Interactions and Ecotoxicological Implications

Microplastics and Antibiotics in Aquatic Environments: A Review of Their Interactions and Ecotoxicological Implications

Highly Efficient Adsorption of Norfloxacin by Low-Cost Biochar: Performance, Mechanisms, and Machine Learning-Assisted Understanding

Polycyclic aromatic hydrocarbon derivatives onto polar microplastics of polyurethane: equilibrium, thermodynamics, and kinetics of monolayer-multilayer adsorption

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