Investigation of antifouling and antibacterial properties of curcumin-enriched surfactant nanoparticles modified polysulfone nanocomposite membranes

Chaubey, Shweta; Mehra, Sanjay; Yadav, Anshul; Kumar, Arvind; Shahi, Vinod K.

doi:10.1016/j.mtchem.2022.101130

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…However, the desalination performance was unsatisfactory. Other strategies (i.e., surface modification or surface grafting) [ 31 , 32 , 33 ] might could be a possible potential approach to enhance the electrostatic effect of the treated PSf membrane, which should be further studied and investigated in the future.…”

Section: Resultsmentioning

confidence: 99%

Facile Preparation of Dense Polysulfone UF Membranes with Enhanced Salt Rejection by Post-Heating

Kong,

You,

Zhang

et al. 2023

Membranes

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Polysulfone (PSf) membranes typically have a negligible rejection of salts due to the intrinsic larger pore size and wide pore size distribution. In this work, a facile and scalable heat treatment was proposed to increase the salt rejection. The influence of heat treatment on the structure and performance of PSf membranes was systematically investigated. The average pore size decreased from 9.94 ± 5.5 nm for pristine membranes to 1.18 ± 0.19 nm with the increase in temperature to 50 °C, while the corresponding porosity decreased from 2.07% to 0.13%. Meanwhile, the thickness of the sponge structure decreased from 20.20 to 11.5 μm as the heat treatment temperature increased to 50 °C. The MWCO of PSf decreased from 290,000 Da to 120 Da, whereas the membrane pore size decreased from 5.5 to 0.19 nm. Correspondingly, the water flux decreased from 1545 to 27.24 L·m−2·h−1, while the rejection ratio increased from 3.1% to 74.0% for Na2SO4, from 1.3% to 48.2% for MgSO4, and from 0.6% to 23.8% for NaCl. Meanwhile, mechanism analysis indicated that the water evaporation in the membranes resulted in the shrinkage of the membrane pores and decrease in the average pore size, thus improving the separation performance. In addition, the desalting performance of the heat-treated membranes for real actual industrial wastewater was improved. This provides a facile and scalable route for PSf membrane applications for enhanced desalination.

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Section: Resultsmentioning

confidence: 99%

Facile Preparation of Dense Polysulfone UF Membranes with Enhanced Salt Rejection by Post-Heating

Kong,

You,

Zhang

et al. 2023

Membranes

View full text Add to dashboard Cite

show abstract

“…The antibacterial activity was assessed using the agar diffusion method against both Gram-positive bacteria Staphylococcus aureus ATCC 6538 and Gram-negative bacteria Escherichia coli ATCC 25922. − The bacteria were evenly spread on the solid Luria–Bertani medium surface. Oxford cups were put vertically on the agar plate with a 200 μL sample.…”

Section: Methodsmentioning

confidence: 99%

Modular Toolbox as Snap Jewelry for Biomimetic Synthesis of Multifunctional Amino Acid Surfactants Inspired by Melanin

Han,

Tang,

Chen

et al. 2023

J. Agric. Food Chem.

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“…Of these approaches, the incorporation of nanomaterials, which can provide enhanced free volume in the PA selective layer and additional nano-pores/channels for water transport, has received great significant interest [ 12 , 13 , 14 ]. Meanwhile, a variety of nanomaterials, including Ag NPs [ 15 , 16 , 17 ], zinc oxide nanoparticles [ 18 ], copper nanoparticles [ 19 ], titanium dioxide nanoparticles [ 20 ], graphene oxide nanosheets [ 21 , 22 ], and curcumin-enriched sodium dodecyl benzenesulfonate (Cur-NaDBS) nanoparticles [ 23 ], have been successfully applied to effectively inhibit bacterial proliferation on membranes. Currently, the incorporation of these dual-functional nanomaterials to the PA selective layer is mainly through ex situ or in situ methods, forming thin film nanocomposite (TFN) membranes.…”

Section: Introductionmentioning

confidence: 99%

In Situ Formation of Silver Nanoparticles Induced by Cl-Doped Carbon Quantum Dots for Enhanced Separation and Antibacterial Performance of Nanofiltration Membrane

Liu

et al. 2023

Membranes

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Polyamide (PA) nanofiltration (NF) membranes suffer from biofouling, which will deteriorate their separation performance. In this study, we proposed a strategy to incorporate silver nanoparticles (Ag NPs) into PA NF membranes in situ, in order to simultaneously enhance water permeability and antibacterial performance. The chloride-doped carbon quantum dots (Cl-CQDs) with photocatalytic performance were pre-embedded in the PA selective layer. Under visible light irradiation, the photogenerated charge carriers generated by Cl-CQDs rapidly transported to silver ions (Ag+ ions), resulting in the in situ formation of Ag NPs. The proposed strategy avoided the problem of aggregating Ag NPs, and the amount of Ag NPs on the membrane surfaces could be easily tuned by changing silver nitrate (AgNO3) concentrations and immersion times. These uniformly dispersed Ag NPs increased membrane hydrophilicity. Thus, the obtained thin film nanocomposite Ag NPs (TFN-Ag) membrane exhibited an improved water flux (31.74 L m−2 h−1), which was ~2.98 times that of the pristine PA membrane; meanwhile, the sodium sulfate (Na2SO4) rejection rate was 96.11%. The sterilization rates of the TFN-Ag membrane against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were 99.55% and 99.52%, respectively. Thus, this facile strategy simultaneously improved the permeability and antibacterial property of PA NF membranes.

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Investigation of antifouling and antibacterial properties of curcumin-enriched surfactant nanoparticles modified polysulfone nanocomposite membranes

Cited by 6 publications

References 37 publications

Facile Preparation of Dense Polysulfone UF Membranes with Enhanced Salt Rejection by Post-Heating

Facile Preparation of Dense Polysulfone UF Membranes with Enhanced Salt Rejection by Post-Heating

Modular Toolbox as Snap Jewelry for Biomimetic Synthesis of Multifunctional Amino Acid Surfactants Inspired by Melanin

In Situ Formation of Silver Nanoparticles Induced by Cl-Doped Carbon Quantum Dots for Enhanced Separation and Antibacterial Performance of Nanofiltration Membrane

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