Antibacterial ultrafiltration membrane with silver nanoparticle impregnation by interfacial polymerization for ballast water

Zhu, Jing; Lua, Aik Chong

doi:10.1002/pol.20210365

Cited by 16 publications

(5 citation statements)

References 37 publications

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“…The antibacterial activity of the material was analyzed using the platelet antibacterial method and oscillation method. The antibacterial rate could be calculated according to Equation () to compare the antibacterial activity of the composite membrane 7

P = (A - B) / A

P is the antibacterial rate (%); A is the number of colonies in the blank control; B is the number of colonies in the composite membrane with different Ag contents.…”

Section: Methodsmentioning

confidence: 99%

“…The addition of antibacterial agents has proven to be an effective method for enhancing antibacterial properties. Due to their excellent antibacterial activity and high safety, the deposition of Ag NPs on filter materials has great potential for application as antibacterial protection materials 7,8 . Wu et al prepared polylactide (PLA) nanofiber membranes containing Ag NPs and tea polyphenol (TP) by electrospinning.…”

Section: Introductionmentioning

confidence: 99%

“…Due to their excellent antibacterial activity and high safety, the deposition of Ag NPs on filter materials has great potential for application as antibacterial protection materials. 7,8 Wu et al prepared polylactide (PLA) nanofiber membranes containing Ag NPs and tea polyphenol (TP) by electrospinning. These membranes exhibited a 95% antibacterial rate against Escherichia coli and Staphylococcus aureus.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and property of antibacterial filter membrane by coaxial electro‐spraying/electrospinning technology

Ren,

Liu,

et al. 2023

J of Applied Polymer Sci

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Herein, a novel technology named coaxial electro‐spraying/electrospinning was successfully introduced, which can simultaneously prepare nanofibers and nanoparticles. First, the device contains an outer nozzle and an inner nozzle, which combine electrospinning with electro‐spraying technology. Then, the polyamide 6 (PA6) was spun to prepare the nanofibers from the inner nozzle, and the silver nanoparticles (Ag NPs) into the PA6 solution were sprayed to prepare the nanoparticles from the outer nozzle. PA6 nanofibers (NFs)/Ag nanoparticles (NPs) antibacterial composite membranes for the filtration of fine particulate pollutants were successfully prepared using coaxial electro‐spraying/electrospinning. The microstructure, physical properties, and antibacterial properties of the composite membrane were investigated. The results show that Ag NPs are successfully loaded in situ onto PA6 NFs of approximately 100 nm to form a three‐dimensional (3D) structure. The filtration efficiency of the 3D structured filtration membrane reaches 90.98%, compared to only 12.78% for the melt‐blown cloth mask filter material when tested with polystyrene microspheres (PS) of 200 nm. The contact angle of the composite membrane decreased from 145.47° to 44.11°, indicating a significant improvement in the hydrophilicity of the membrane. Furthermore, depositing Ag on the surface fibers resulted in an impressive antibacterial rate of 99.75% against Penicillium.

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P = (A - B) / A

P is the antibacterial rate (%); A is the number of colonies in the blank control; B is the number of colonies in the composite membrane with different Ag contents.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation and property of antibacterial filter membrane by coaxial electro‐spraying/electrospinning technology

Ren,

Liu,

et al. 2023

J of Applied Polymer Sci

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“…46 Another study also reported the incorporation of AgNPs into polyamide 12 membranes that were obtained by the selective laser sintering method that was followed by washing, pretreatment, and functionalization with alkoxides and silanes. 47 More studies that report the use of AgNPs in polymeric membranes include the incorporation into poly(ether sulfone) membranes to develop antibacterial and antifouling ultrafiltration membranes 48 and into polysulfone ultrafiltration membranes among others. 49 Zinc oxide (ZnO) nanoparticles have also been used expansively as cheap, ecological, and hydrophilic materials since they not only provide antifouling properties to the composite membranes but also provide a photocatalytic self-cleaning capability.…”

Section: Nanoparticle-based Polymericmentioning

confidence: 99%

Current Status and Advancement of Nanomaterials within Polymeric Membranes for Water Purification

Noah

2023

ACS Appl. Nano Mater.

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The contamination of water resources is a significant environmental challenge. The creation of innovative technologies to address this challenge is of paramount significance. Nanomaterials within polymeric membranes have surfaced as a hopeful technology within the realm of water purification, offering solutions to crucial issues concerning the elimination of pollutants and pathogens from water supplies. The exceptional properties of nanomaterials within polymeric membranes, including their high surface area, tunable pore sizes, and selective permeability, have enabled significant progress in the effective removal of various contaminants from water. This is due to the integration of nanoscale materials, such as metal nanoparticles, nanofibers, graphene, and graphene oxide, which has further enhanced the membrane performance by introducing enhanced mechanical strength, improved separation efficiency, and increased adsorption capacities. Recent research has focused on tailoring nanomaterials within polymeric membranes to target specific contaminants, such as viruses, bacteria, heavy metals, organic pollutants, and microplastics. Functionalization techniques, such as surface modification and incorporation of specific functional groups, have been employed to enhance the adsorption and separation capabilities of these membranes. Moreover, innovative fabrication methods, including layer-by-layer assembly, electrospinning, and template-assisted techniques, have been explored to achieve precise control over membrane properties and morphology. This review provides an overview of the current status and advancements in the utilization of nanomaterials within polymeric membranes for water purification applications.

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“…Aside from GO, Ag NPs have also risen in popularity due to their antibacterial properties. To develop antibacterial and antifouling properties, Zhu and Lua [ 43 ] employed interfacial polymerization to bind Ag NPs on the surface of an industrial PES membrane. Sprick [ 44 ] also developed a method for chemically immobilizing Ag NPs onto membranes without compromising the antimicrobial properties of the Ag NPs.…”

Section: Introductionmentioning

confidence: 99%

Impact of Silver-Decorated Graphene Oxide (Ag-GO) towards Improving the Characteristics of Nanohybrid Polysulfone Membranes

et al. 2023

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The utilization of membranes has been extensively employed in the treatment of water and wastewater. Membrane fouling, attributed to the hydrophobic nature of membranes, constitutes a noteworthy concern in the realm of membrane separation. The mitigation of fouling can be achieved through the modification of membrane characteristics, including but not limited to hydrophilicity, morphology, and selectivity. In this study, a nanohybrid polysulfone (PSf) membrane embedded with silver–graphene oxide (Ag-GO) was fabricated to overcome problems related to biofouling. The embedment of Ag-GO nanoparticles (NPs) is the aim towards producing membranes with antimicrobial properties. The fabricated membranes at different compositions of NPs (0 wt%, 0.3 wt%, 0.5 wt%, and 0.8 wt%) are denoted as M0, M1, M2, and M3, respectively. These PSf/Ag-GO membranes were characterized using FTIR, water contact angle (WCA) goniometer, FESEM, and salt rejection. The additions of GO significantly improved the hydrophilicity of PSf membranes. An additional OH peak at 3380.84 cm−1 of the nanohybrid membrane from FTIR spectra may be related to hydroxyl (-OH) groups of GO. The WCA of the fabricated membranes decreased from 69.92° to 54.71°, which confirmed the improvement in its hydrophilicity. In comparison to the pure PSf membrane, the morphology of the finger-like structure of the fabricated nanohybrid membrane slightly bent with a larger bottom part. Among the fabricated membranes, M2 achieved the highest iron (Fe) removal, up to 93%. This finding proved that the addition of 0.5 wt% Ag-GO NPs enhanced the membrane water permeability together with its performance of ionic solute removal (Fe2+) from synthetic groundwater. In conclusion, embedding a small amount of Ag-GO NPs successfully improved the hydrophilicity of PSf membranes and was able to achieve high removal of Fe at 10–100 mg L−1 towards purification of groundwater for safe drinking water.

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Antibacterial ultrafiltration membrane with silver nanoparticle impregnation by interfacial polymerization for ballast water

Cited by 16 publications

References 37 publications

Preparation and property of antibacterial filter membrane by coaxial electro‐spraying/electrospinning technology

Preparation and property of antibacterial filter membrane by coaxial electro‐spraying/electrospinning technology

Current Status and Advancement of Nanomaterials within Polymeric Membranes for Water Purification

Impact of Silver-Decorated Graphene Oxide (Ag-GO) towards Improving the Characteristics of Nanohybrid Polysulfone Membranes

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