Polyethersulfone composite membrane blended with cellulose fibrils

Qu, Peng; Tang, Huanwei; Gao, Yuan; Zhang, Liping; Wang, Siqun

doi:10.15376/biores.5.4.2323-2336

Cited by 112 publications

(8 citation statements)

References 27 publications

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“…With an augmentation in V 2 CT x nanosheets loading from 0 to 1 wt %, the surface roughness of the membranes increased, and it was ascribed to the hydrophilic nature of V 2 CT x nanosheets. During the demixing process, the hydrophilic V 2 CT x nanosheets migrate to the aqueous phase interface, resulting in a rough surface topography . However, the surface roughness of VPM-3 was less compared to that of VPM-2 due to the partial agglomeration of nanosheets at higher concentrations.…”

Section: Resultsmentioning

confidence: 98%

Fabrication of 2D Vanadium MXene Polyphenylsulfone Ultrafiltration Membrane for Enhancing the Water Flux and for Effective Separation of Humic Acid and Dyes from Wastewater

Satishkumar,

Isloor,

Rao

et al. 2024

ACS Omega

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MXene, a new 2D transition metal carbide-based material, is gaining outstanding attention in recent days in the area of separation and purification. In this study, we have successfully synthesized vanadium-based MXene-V 2 CT x (where T represents functional groups such as −OH, O, and F) by etching an aluminum layer from V 2 AlC. For the first time, a vanadiumbased MXene-V 2 CT x -embedded mixed matrix membrane was fabricated and utilized for removal of hazardous dye and humic acid from wastewater. With an increase in V 2 CT x loading, the hydrophilicity of the polyphenylsulfone (PPSU) membrane reasonably improved, and its water contact angle was reduced from 82.8 to 70.9°. V 2 CT x nanosheet-embedded PPSU membrane exhibited an excellent pure water permeability of 247 L m −2 h −1, which was 266% elevated than the pristine PPSU membrane. The V 2 CT x -PPSU membrane revealed a good antifouling nature, thermal stability, and 98.5% removal of humic acid. The optimal membrane exhibited 96.6 and 82.02% expulsion of Reactive Black 5 (RB 5) dye and Reactive Orange 16 (RO 16) dye, respectively. The flux for RO 16 and RB 5 dyes and humic acid were remarkable with a value of 202.02, 161.61, and 141.41 L m −2 h −1 , respectively. This work provides a new V 2 CT x -incorporated PPSU ultrafiltration membrane to effectively treat humic acid and dye wastewater.

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Section: Resultsmentioning

confidence: 98%

Fabrication of 2D Vanadium MXene Polyphenylsulfone Ultrafiltration Membrane for Enhancing the Water Flux and for Effective Separation of Humic Acid and Dyes from Wastewater

Satishkumar,

Isloor,

Rao

et al. 2024

ACS Omega

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“…The GDL in MEA was made of 40% platinum-loaded , respectively. 49,50 The broad peak observed in FTIR spectra and located between 3200 and 3500 cm À1…”

Section: Characterization Studiesmentioning

confidence: 98%

Synthesized and characterized high‐performance and low‐cost zirconium phosphate‐additive sulfonated polyethersulfone membranes for PEMFC

Yağızatlı,

Sahin,

2024

Polymers for Advanced Techs

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In this study, the preparation, characterization, and fuel cell performance tests of high‐performance and low‐cost zirconium phosphate (ZrP)‐additive sulfonated polyethersulfone (sPES) membranes, which may serve as a substitute for the commercial membrane used in proton exchange membrane fuel cell (PEMFC), were carried out. ZrP‐additive sPES membranes were prepared by solution casting method with different weight ratios (2.5%, 5%, and 9%). Fourier transform infrared (FTIR), water uptake capacity (WUc), dynamic mechanical analysis, ion exchange capacity (IEx), degree of hydration, impedance analysis, and oxidative stability were used to characterize the created membranes. Ultimately, single‐cell performance experiments were used to evaluate the membranes' performance in real fuel cell environments. ZrP additive improved the WUc, mechanical properties, IEx, and proton conductivity properties of the membrane. WUc of the membranes enhanced by approximately 94% at 80°C, while the proton conductivity augment by approximately 47% with 9% ZrP by weight. 0.97 meq g−1 IEx was obtained for the sPES, whereas it was obtained as 1.41 meq g−1 for sPES‐9ZrP. Oxidative stability experiments for 120‐h determined that all synthesized membranes had a stable structure, and their weight losses varied between 68% and 85%. The sPES‐9ZrP exhibited very high values at 0.6 V, resulting in a power density of 680 mW cm−2 and a current density of 1100 mA cm−2. The results obtained are quite promising, and sPES and ZrP in composite membrane structures have high synergy.

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“…This approach can be employed in membrane testing processes. There are similar studies on the mechanical properties of membranes under wet and dry conditions. − Based on previous research, it is possible to state that the stiffer tubular structures like HNT contribute to the mechanical stiffness and strength significantly. ,, …”

Section: Introductionmentioning

confidence: 95%

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

Acarer,

Pir,

Tüfekci

et al. 2023

ACS Omega

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This research focuses on the production and characterization of pristine polyacrylonitrile (PAN) as well as halloysite nanotube (HNT)-doped PAN ultrafiltration (UF) membranes via the phase inversion technique. Membranes containing 0.1, 0.5, and 1% wt HNT in 16% wt PAN are fabricated, and their chemical compositions are examined using Fourier transform infrared (FTIR) spectroscopy. Scanning electron microscopy (SEM) is utilized to characterize the membranes’ surface and cross-sectional morphologies. Atomic force microscopy (AFM) is employed to assess the roughness of the PAN/HNT membrane. Thermal characterization is conducted using thermal gravimetric analysis (TGA) and differential thermal analysis (DTA), while contact angle and water content measurements reveal the hydrophilic/hydrophobic properties. The pure water flux (PWF) performance of the porous UF water filtration membranes is evaluated at 3 bar, with porosity and mean pore size calculations. The iron (Fe), manganese (Mn), and total organic carbon (TOC) removal efficiencies of PAN/HNT membranes from dam water are examined, and the surfaces of fouled membranes are investigated by using SEM post-treatment. Mechanical characterization encompasses tensile testing, the Mori–Tanaka homogenization approach, and finite element analysis. The findings offer valuable insights into the impact of HNT doping on PAN membrane characteristics and performance, which will inform future membrane development initiatives.

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Polyethersulfone composite membrane blended with cellulose fibrils

Cited by 112 publications

References 27 publications

Fabrication of 2D Vanadium MXene Polyphenylsulfone Ultrafiltration Membrane for Enhancing the Water Flux and for Effective Separation of Humic Acid and Dyes from Wastewater

Fabrication of 2D Vanadium MXene Polyphenylsulfone Ultrafiltration Membrane for Enhancing the Water Flux and for Effective Separation of Humic Acid and Dyes from Wastewater

Synthesized and characterized high‐performance and low‐cost zirconium phosphate‐additive sulfonated polyethersulfone membranes for PEMFC

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

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