Electrospun Pineapple Leaf Fiber/MIL-101(Fe)-NH₂-Cyclodextrin nanofibrous membranes for enhanced and selective removal of contaminants from Wastewater

IF 3 4区 工程技术 Q3 CHEMISTRY, PHYSICAL
Timoth Mkilima, Gulnur Saspugayeva, Gulzhan Kaliyeva, Indira Samatova, Bibigul Rakhimova, Gulkhan Tuleuova, Akku Tauyekel, Yelena Batyayeva, Rosa Karibzhanova, Salima Cherkeshova
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Abstract

Pharmaceutical contamination of wastewater poses a significant threat to aquatic ecosystems and human health. Traditional wastewater treatment methods often struggle to effectively remove these emerging contaminants. This study investigated the potential of MIL-101(Fe)-NH2-Cyclodextrin nanofibers as a novel adsorbent for removing pharmaceutical contaminants from wastewater. The performance of this material was compared to traditional Electrospun Pineapple Leaf Fiber, an alternative bio-based adsorbent. MIL-101(Fe)-NH2-Cyclodextrin nanofibers exhibited significantly enhanced adsorption capacity and kinetics compared to Pineapple Leaf Fiber. For example, at an initial concentration of 100 mg/L and pH 7, MIL-101(Fe)-NH2-Cyclodextrin nanofibers achieved a removal efficiency of 96 ± 2% for Ciprofloxacin, while Pineapple Leaf Fiber only achieved 65 ± 3.5%. This superior performance is attributed to the material’s high BET surface area (1220 m2/g) and broad pore size distribution, providing a vast surface area for contaminant adsorption and an intricate network for trapping contaminants as well as cyclodextrin-functionalized active sites, which enhance host-guest interactions and hydrogen bonding. Furthermore, MIL-101(Fe)-NH2-Cyclodextrin exhibited faster adsorption kinetics, achieving equilibrium within 60 min for Ciprofloxacin, compared to 120 min for Pineapple Leaf Fiber. These findings suggest that MIL-101(Fe)-NH2-Cyclodextrin nanofibers offer a promising alternative to traditional adsorbents for removing pharmaceutical contaminants from wastewater. Its high removal efficiency, fast kinetics, and potential for reusability make it a valuable tool for addressing the increasing issue of pharmaceutical pollution in aquatic environments. Further research is needed to optimize its performance and assess its feasibility for real-world applications, but this study offers a compelling roadmap for developing innovative and effective solutions for safeguarding our water resources.

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来源期刊
Adsorption
Adsorption 工程技术-工程:化工
CiteScore
8.10
自引率
3.00%
发文量
18
审稿时长
2.4 months
期刊介绍: The journal Adsorption provides authoritative information on adsorption and allied fields to scientists, engineers, and technologists throughout the world. The information takes the form of peer-reviewed articles, R&D notes, topical review papers, tutorial papers, book reviews, meeting announcements, and news. Coverage includes fundamental and practical aspects of adsorption: mathematics, thermodynamics, chemistry, and physics, as well as processes, applications, models engineering, and equipment design. Among the topics are Adsorbents: new materials, new synthesis techniques, characterization of structure and properties, and applications; Equilibria: novel theories or semi-empirical models, experimental data, and new measurement methods; Kinetics: new models, experimental data, and measurement methods. Processes: chemical, biochemical, environmental, and other applications, purification or bulk separation, fixed bed or moving bed systems, simulations, experiments, and design procedures.
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