<i>In situ</i> synthesis of a hierarchical MIL-100(Fe)-modified nanofiber membrane for the efficient removal of levofloxacin

Yang, Tianyi; Teng, Yakun; Wang, Jing; Jia, Shushu; Shi, Yuqi; Li, Xiang; Li, Lijuan

doi:10.1039/d2nj06084a

Cited by 8 publications

(1 citation statement)

References 56 publications

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“…Electrospinning is a technique employed to manufacture fiber membranes with diameters ranging from nanometers to micrometers. These membranes retain the specific functionalities of the constituent materials and have extensive applications in water purification due to their high porosity, ease of recycling, and straightforward preparation [22][23][24]. Polyacrylonitrile (PAN) is a low−cost polymer that is easy to make from nanofibers through electrospinning.…”

Section: Introductionmentioning

confidence: 99%

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Li,

Yu,

Zhang

et al. 2024

Molecules

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Developing high−efficiency membrane materials for the rapid removal of organic dyes is crucial but remains a challenge. Polyoxometalates (POMs) clusters with anionic structures are promising candidates for the removal of cationic dyes via electrostatic interactions. However, their shortcomings, such as their solubility and inability to be mass−produced, hinder their application in water pollution treatment. Here, we propose a simple and green strategy utilizing the room temperature stirring method to mass produce nanoscale polyoxometalate−based metal−organic frameworks (POMOFs) with porous rhomboid−shaped dodecahedral and hexagonal prism structures. The products were labeled as POMOF1 (POMOF-PW12) and POMOF2 (POMOF-PMo12). Subsequently, a series of x wt% POMOF1/PAN (x = 0, 3, 5, and 10) nanofiber membranes (NFMs) were prepared using electrospinning technology, where polyacrylonitrile (PAN) acts as a “glue” molecule facilitating the bonding of POMOF1 nanoparticles. The as−prepared samples were comprehensively characterized and exhibited obvious water stability, as well as rapid selective adsorption filtration performance towards cationic dyes. The 5 wt% POMOF1/PAN NFM possessed the highest removal efficiency of 96.7% for RhB, 95.8% for MB, and 86.4% for CV dyes, which realized the selective separation over 95% of positively charged dyes from the mixed solution. The adsorption mechanism was explained using FT−IR, SEM, Zeta potential, and adsorption kinetics model, which proved that separation was determined via electrostatic interaction, hydrogen bonding, and π–π interactions. Moreover, the POMOF1/PAN membrane presented an outstanding recoverable and stable removal rate after four cycles. This study provides a new direction for the systematic design and manufacture of membrane separation materials with outstanding properties for contaminant removal.

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Section: Introductionmentioning

confidence: 99%

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Li,

Yu,

Zhang

et al. 2024

Molecules

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Design and Development of p-toluenesulfonic acid Functionalized Dual-functional Fe-MOF@SBC Heterogeneous Catalyst for Efficient Biodiesel Production and Photocatalytic Degradation of Metronidazole

Bhuyan,

Ahmaruzzaman

2024

J Inorg Organomet Polym

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MOF-5 anchored polymer@carbon core–shell nanofibers for efficient removal of chlortetracycline from aqueous solution

Li,

Teng,

Jia

et al. 2024

Applied Surface Science

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In situ synthesis of a hierarchical MIL-100(Fe)-modified nanofiber membrane for the efficient removal of levofloxacin

Abstract: Metal-organic frameworks (MOFs) are prospective adsorbents for removal of drug sewage. However, the powder form of MOFs limits its further practical adsorption application. Herein, electrospinning and adhesive layer modification methods...

Cited by 8 publications

References 56 publications

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Rapid, Massive, and Green Synthesis of Polyoxometalate-Based Metal–Organic Frameworks to Fabricate POMOF/PAN Nanofiber Membranes for Selective Filtration of Cationic Dyes

Design and Development of p-toluenesulfonic acid Functionalized Dual-functional Fe-MOF@SBC Heterogeneous Catalyst for Efficient Biodiesel Production and Photocatalytic Degradation of Metronidazole

MOF-5 anchored polymer@carbon core–shell nanofibers for efficient removal of chlortetracycline from aqueous solution

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