Flower-like MnO2 nanoparticles modified thin film nanocomposite membranes for efficient organic solvent nanofiltration

He, Hongru; Wang, Xi; Xu, Peng; Ma, Shnegqi; Peng, Henan; Wang, Daming; Zhou, Hongwei; Chen, Chunhai

doi:10.1016/j.coco.2023.101515

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Wang et al attributed this phenomenon to the decreased diffusion of the MPD amine monomer towards the organic component due to NP agglomeration [ 45 ]. Similar results were reported by Wang et al [ 62 ] and Huang et al [ 93 ]. The O 1s XPS spectrum of the TFC membranes confirmed the formation of the amide bond during the IP process.…”

Section: Membrane Characterizationsupporting

confidence: 92%

“…Detailed analysis of the XPS spectra of TFC membranes can be found elsewhere [ 60 , 63 , 69 , 75 ]. Typically, three significant peaks are present for TFC/TFN membranes at 284.6, 400.5, and 532.0 eV, which correspond to the C, N, and O elements, respectively [ 62 , 104 ].…”

Section: Membrane Characterizationmentioning

confidence: 99%

“…On the other hand, the presence of hydrophilic nanofillers and the hydrolysis of unreacted acyl groups in TMC can increase surface hydrophilicity. This results in lower contact angles owing to an increase in the number of hydroxyl and carboxyl functional groups [ 62 ]. Al Aani et al investigated the effect of using carbon nanotubes (CNTs) that were surface-decorated with metal/metal oxide (M/MO) nanoparticles to prepare TFN membranes with improved performance.…”

Section: Membrane Characterizationmentioning

confidence: 99%

“…Nanomaterials that can impart weak negative surface charges include amine-functionalized nanofillers [ 74 , 129 ], polydopamine-coated silicon nanoparticles (PDA/SiNPs) [ 89 ], PDA/TiO 2 nanoparticles [ 130 ], zeolite [ 62 ], layered double hydroxide (LDH) [ 88 ], and CNTs [ 85 ]. On the other hand, more negative zeta potential values for membranes are common for carboxylated and sulfonated functionalized nanofillers [ 105 , 129 ], Ag-MOFs [ 91 ], GO [ 131 , 132 ], carbon quantum dots (CQDs) [ 133 ], and carboxylated cellulose nanocrystals (C–CNCs) [ 71 ].…”

Section: Membrane Characterizationmentioning

confidence: 99%

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Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

et al. 2023

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Thin-film nanocomposite (TFN) membranes have been widely investigated for water treatment applications due to their promising performance in terms of flux, salt rejection, and their antifouling properties. This review article provides an overview of the TFN membrane characterization and performance. It presents different characterization techniques that have been used to analyze these membranes and the nanofillers within them. The techniques comprise structural and elemental analysis, surface and morphology analysis, compositional analysis, and mechanical properties. Additionally, the fundamentals of membrane preparation are also presented, together with a classification of nanofillers that have been used so far. The potential of TFN membranes to address water scarcity and pollution challenges is significant. This review also lists examples of effective TFN membrane applications for water treatment. These include enhanced flux, enhanced salt rejection, antifouling, chlorine resistance, antimicrobial properties, thermal stability, and dye removal. The article concludes with a synopsis of the current status of TFN membranes and future perspectives.

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Section: Membrane Characterizationsupporting

confidence: 92%

Section: Membrane Characterizationmentioning

confidence: 99%

Section: Membrane Characterizationmentioning

confidence: 99%

Section: Membrane Characterizationmentioning

confidence: 99%

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Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

et al. 2023

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“…Nano-composite thin films have excellent physical and chemical characteristics [1][2][3], such as quantum size effect, small size effect, surface effect, etc., and have been successfully applied in scientific research, life and health, aerospace industry, national defense construction, and other special fields [4][5][6][7][8]. With the development of nanotechnology and in-depth research on nanomaterials, effective technologies for preparing composite thin films have been becoming more mature [9].…”

Section: Introductionmentioning

confidence: 99%

Reflection Interference Spectroscopy Technology Monitoring the Synthesis of ZnCl2-ZnO Nanosheets on Nanoporous Anodic Alumina Substrate in Real Time

et al. 2023

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In situ, real-time, and non-destructive monitoring of the synthesis of nanomaterials is essence crucial for the development and prospective applications of nanoscience and nanotechnology. Reflection interference spectroscopy technology was used to systematically monitor the synthesis process of a transparent (ZnCl2-ZnO)/NpAA composite film which consists of ZnCl2-ZnO nanosheets formed by ZnCl2 precursor solution on the top surface of the substrate layer of nanoporous anodic alumina. Some significant results are found, e.g., the curve of effective optical thickness with time can be divided into three stages, corresponding to the synthesis process of ZnCl2-ZnO; and more, these films generated from ZnCl2 precursor solution with different concentrations, such as 0.05 M, 0.07 M, 0.085 M, or 0.1 M, can be directly distinguished according to the characteristics of the three stages.

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Tailoring separation performance of nanofiltration membranes by construction of Tin(II)-α-diimine coordination bonds in polyimides

Gan,

Zhou,

Jiang

et al. 2024

Composites Communications

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Flower-like MnO2 nanoparticles modified thin film nanocomposite membranes for efficient organic solvent nanofiltration

Cited by 10 publications

References 28 publications

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

Thin-Film Nanocomposite (TFN) Membranes for Water Treatment Applications: Characterization and Performance

Reflection Interference Spectroscopy Technology Monitoring the Synthesis of ZnCl2-ZnO Nanosheets on Nanoporous Anodic Alumina Substrate in Real Time

Tailoring separation performance of nanofiltration membranes by construction of Tin(II)-α-diimine coordination bonds in polyimides

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