Preparation and characterisation of graphene oxide-enhanced poly (m-phenylene isophthalamide) ultrafiltration membrane with excellent alkali resistance

Wan, Jia-Jun; Chen, Gui‐E; Xu, Sun‐Jie; Xu, Zheng; Wang, Yan; Wu, Hailing; Liu, Lian-Jing; Zhang, Ying; Liang, Ji-Chen; Liu, Min-Jie; Mao, Haifang

doi:10.1016/j.polymertesting.2021.107128

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…However, the lower intensity CO stretching peak of FANF0 and FANF2 membranes was shown at 1648 cm –1 , which could be attributed to the PMIA substrate and PA separation layer . Then, the peak at 1537 cm –1 was related to the C–N–H group formed in the C–N stretching and N–H in-plane bending coupled modes . In addition, a new peak at 1742 cm –1 could be easily observed from FANF2, which was caused by the stretching of CO in the ester group.…”

Section: Results and Discussionmentioning

confidence: 92%

Thin-Film Composite Nanofiltration Membrane Modified by Fulvic Acid to Enhance Permeability and Antifouling Performance

et al. 2022

Ind. Eng. Chem. Res.

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A novel thin-film composite (TFC) nanofiltration (NF) membrane was manufactured by interfacial polymerization (IP) with addition of the additive fulvic acid (FA) into the piperazine (PIP) aqueous solution onto a poly(m-phenylene isophthalamide) (PMIA) substrate. The aqueous phase additive FA can effectively modify the PA layer structure by slowing down the diffusion of the PIP monomer and reacting with trimesoyl chloride (TMC) to generate ester groups. The pure water permeability (PWP) of the optimized NF membrane enhanced from 10.4 to 22.3 L m −2 h −1 bar −1 , and the Na 2 SO 4 rejection remained above 97.8%. The outstanding performance benefited from superior hydrophilicity, enlarged pores, and a relatively thin separation layer. Furthermore, the obtained NF membrane presented ascendant thermal stability, long-term stability, and fouling resistance. Therefore, this work offers novel insight into regulation of the PA layer structure and promotion of NF membrane performance.

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Section: Results and Discussionmentioning

confidence: 92%

Thin-Film Composite Nanofiltration Membrane Modified by Fulvic Acid to Enhance Permeability and Antifouling Performance

et al. 2022

Ind. Eng. Chem. Res.

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“…The self-assembled ANF films demonstrate high tensile strength and modulus of 165 MPa and 6.4 GPa, respectively, outpeforming the conventional polymer films . Toward further improvement in regard to the mechanical properties, recent research interests have focused on diverse inorganic additives, such as TiO 2 , graphene oxide (GO), as well as newly appearing 2D layered materials of MXene. − The combination of ANFs with these fillers also endows additional improvements in electrical and thermal properties, largely broadening the range of ANF applications.…”

Section: Introductionmentioning

confidence: 99%

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Sun,

Lv,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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The poly(m-phenylene isophthalamide) (PMIA) paper has attracted extensive interests due to its ultrahigh mechanical properties as an ideal protective material for anti-impact damage applications. In the pursuit of additional properties, composites based on the PMIA matrix and various fillers are widely explored. However, additional improvements are frequently obtained at the expense of mechanical properties because of the serious interfacial compatibility brought by different components. In this study, a self-reinforced doping strategy is proposed by combining microscale PMIA fibers as the fillers and nanoscale PMIA fibers as the matrix to form a micronano paper. Without the limitation of the interfacial compatibility issues, the nanofibers are tightly aligned and adhered to the microfibers, enabling the in situ generation of hydrogen bonds at the interfaces. A compact interfacial structure is thus constructed with reduced porosity on the surface. It indicates that the microfibers have a positive impact on the improvement of mechanical properties. In our optimized sample with 5 wt % microfibers, the elastic modulus, tensile strength, and elongation are 1530 MPa, 24.8 MPa, and 5.3%, respectively, which are 142, 49.4, and 65% higher than those of the pristine nano-PMIA paper. In addition, the insulating performance is also improved, facilitating its further application extended to broad fields.

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Recent advances in 2D materials for improved performance and antifouling characteristics of ultrafiltration membranes

Almanassra,

Jaber,

Manawi

et al. 2024

Chemical Engineering Journal

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Preparation and characterisation of graphene oxide-enhanced poly (m-phenylene isophthalamide) ultrafiltration membrane with excellent alkali resistance

Cited by 6 publications

References 44 publications

Thin-Film Composite Nanofiltration Membrane Modified by Fulvic Acid to Enhance Permeability and Antifouling Performance

Thin-Film Composite Nanofiltration Membrane Modified by Fulvic Acid to Enhance Permeability and Antifouling Performance

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Recent advances in 2D materials for improved performance and antifouling characteristics of ultrafiltration membranes

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