Metal organic framework UiO-66 incorporated ultrafiltration membranes for simultaneous natural organic matter and heavy metal ions removal

Wang, Yi; Li, Daxue; Li, Jian; Li, Jun; Fan, Mao Yan; Han, Ming; Liu, Zequn; Li, Zhanguo; Kong, Fanxin

doi:10.1016/j.envres.2021.112651

Cited by 50 publications

(8 citation statements)

References 54 publications

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“…The 2D materials such as MOFs, GO, and MXenes can be used to regulate the membrane pore size for ion removal. , Meanwhile, UiO-66 with good water stability and subnanometer porosity can be applied to achieve ion separation. Wang et al fabricated a UiO-66 incorporated PSF membrane, which showed high rejection rates for Sr 2+ , Pb 2+ , Cd 2+ , and Cr 6+ . The introduction of nanosheets to the membranes can also regulate the water permeability due to the loosely lamellar structure of nanosheets.…”

Section: Enhanced Uf Membrane Preparation For Ion Selectivitymentioning

confidence: 99%

“…Wang et al fabricated a UiO-66 incorporated PSF membrane, which showed high rejection rates for Sr 2+ , Pb 2+ , Cd 2+ , and Cr 6+ . 88 The introduction of nanosheets to the membranes can also regulate the water permeability due to the loosely lamellar structure of nanosheets. Ghanbari et al fabricated Ti 3 C 2 T x MXene@MOFs nanosheets and incorporated it as a thin-film composite PVDF membrane.…”

Section: Composite Thin Layer Fabricationmentioning

confidence: 99%

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Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

et al. 2023

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Toxic ions from industrial wastewater entail important challenges to the environment. Ultrafiltration (UF) with low operation pressure and high permeability has been widely used for macromolecules and suspended solids separation. However, UF cannot be directly used to separate ions from wastewater due to the large pore size of UF membranes. Recently, the design of enhanced UF membrane structures and UF-based integrated processes expands the application of UF for ion removal. This review aims to summarize the latest developments of UF membranes preparation as well as integrated UF processes in ion removal. First, the advanced materials for UF membranes preparation are discussed, with specific attention on active nanomaterials including inorganic materials, organic materials, and biomaterial-based materials. The design principles such as pore size control and composite thin layer fabrication of enhanced UF-based membranes for ion removal are illustrated. Next, integrated processes such as micellar-enhanced UF, polymer-enhanced UF, electro-driven UF, and other UF-based combined processes are reviewed. Finally, current application limitations and future perspectives in the enhanced UF membrane for ion removal are discussed. This review presents potential approaches for the preparation and application of enhanced UF membranes in sustainable ion removal from wastewaters.

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Section: Enhanced Uf Membrane Preparation For Ion Selectivitymentioning

confidence: 99%

Section: Composite Thin Layer Fabricationmentioning

confidence: 99%

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

et al. 2023

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“…However, this strategy is time-consuming and laborintensive, and could not meet the demand for the rapid screening of bioactive compounds. Hence, ultrafiltration combined with mass spectrometry (UF-MS) has attracted more and more attention [13][14][15][16]. UF-MS utilizes the characteristics of specific binding between ligands and enzymes.…”

Section: Introductionmentioning

confidence: 99%

Discovery of the potential neuraminidase inhibitors from Polygonum cuspidatum by ultrafiltration combined with mass spectrometry guided by molecular docking

Wang

Chen

Sun

et al. 2023

J of Separation Science

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Neuraminidase is an important target in the treatment of the influenza A virus.Screening natural neuraminidase inhibitors from medicinal plants is crucial for drug research. This study proposed a rapid strategy for identifying neuraminidase inhibitors from different crude extracts (Polygonum cuspidatum, Cortex Fraxini, and Herba Siegesbeckiae) using ultrafiltration combined with mass spectrometry guided by molecular docking. Firstly, the main component library of the three herbs was established, followed by molecular docking between the components and neuraminidase. Only the crude extracts with numbers of potential neuraminidase inhibitors identified by molecular docking were selected for ultrafiltration. This guided approach reduced experimental blindness and improved efficiency. The results of molecular docking indicated that the compounds in Polygonum cuspidatum demonstrated good binding affinity with neuraminidase. Subsequently, ultrafiltration-mass spectrometry was employed to screen for neuraminidase inhibitors in Polygonum cuspidatum. A total of five compounds were fished out, and they were identified as trans-polydatin, cispolydatin, emodin-1-O-β-D-glucoside, emodin-8-O-β-D-glucoside, and emodin.The enzyme inhibitory assay showed that they all had neuraminidase inhibitory effects. In addition, the key residues of the interaction between neuraminidase and fished compounds were predicted. In all, this study could provide a strategy for the rapid screening of the potential enzyme inhibitors from medicinal herbs.

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“…The membranes have also been explored for several applications such as wastewater treatment, CO 2 adsorption, hydrogen separation, etc. Membranes such as nanofiltration (NF), UF, and forward osmosis (FO) have been explored for the removal of metal ions in wastewater, and the removal was achieved through the sieving effect or electrostatic repulsion. − Membranes require less footprint and low energy use, provide a permanent barrier to the suspended pollutants, and are highly selective and flexible, and they are a robust technology. , UF membrane processes are characterized by low operating pressures and costs and relatively higher permeate flux as compared to NF and reverse osmosis (RO). UiO-66-NH 2 @GO-based membranes will be used as a final polishing step, and the nanocomposite used offers properties such as a large surface area and chemical, thermal, and water stability and results in high water flux due to sufficient water channels of graphene oxide (GO) and the highly ordered structure of the UiO-66-NH 2 metal–organic framework (MOF). − The hydrophilicity of UiO-66-NH 2 @GO has been shown to improve the antifouling properties of polyethersulfone (PES) membranes, and the overall performance improves the quality of the water being treated.…”

Section: Introductionmentioning

confidence: 99%

Integrating Ultrafiltration Membranes with Flocculation and Activated Carbon Pretreatment Processes for Membrane Fouling Mitigation and Metal Ion Removal from Wastewater

Matebese

Moutloali

2023

ACS Omega

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The presence of metal ions in an aqueous medium is an ongoing challenge throughout the world. Processes employed for metal ion removal are developed continuously with the integration of these processes taking center stage. Herein, an integrated system consisting of flocculation, activated carbon (AC), and an ultrafiltration (UF) membrane was assessed for the removal of multiple metal ions contained in wastewater generated from a university chemistry research laboratory. The quality of the wastewater was established before and further determined after treatment with inductively coupled plasma optical emission spectrometry (ICP-OES) for metal content, total dissolved solids (TDS), turbidity, electrical conductivity (EC), and pH. Assessing the spent AC indicated minimal structural changes, indicating a potential for further reuse; for instance, the BET for both the pristine and spent AC exhibited type I isotherms with a mesoporous structure, indicating no major structural changes due to metal complexation. The relative performance of the integrated system indicated that the use of flocculation improved the water quality of metal-laden wastewater for safe disposal. The integrated treatment systems exhibited high removal efficiencies between 80 and 99.99% for all the metal ions except for Mn (<0.008 mg L–1) and Cr (<0.016 mg L–1) both at ca. 70%, indicative of the positive influence of the polyelectrolyte in the treatment process. The fabricated UiO-66-NH2@GO membranes (Z4 and Z5) exhibited high fouling resistance and reusability potential as well as relatively high pure water flux. Consequently, the integrated process employed for the treatment of laboratory metal-containing wastewater is promising as a generic approach to improving the quality of metal-containing wastewater to meet the standards of discharging limits in South Africa.

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Metal organic framework UiO-66 incorporated ultrafiltration membranes for simultaneous natural organic matter and heavy metal ions removal

Cited by 50 publications

References 54 publications

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

Discovery of the potential neuraminidase inhibitors from Polygonum cuspidatum by ultrafiltration combined with mass spectrometry guided by molecular docking

Integrating Ultrafiltration Membranes with Flocculation and Activated Carbon Pretreatment Processes for Membrane Fouling Mitigation and Metal Ion Removal from Wastewater

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