Thin film metallic glass as an effective coating for enhancing oil/water separation of electrospun polyacrylonitrile membrane

Kassa, Shewaye Temesgen; Hu, Chien‐Chieh; Liao, Yo-Chuan; Chen, Jem-Kun; Chu, Jinn P.

doi:10.1016/j.surfcoat.2019.04.030

Cited by 32 publications

(5 citation statements)

References 60 publications

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“…As per the literature survey, for sputtering there was only one study done by Kassa et al 66 to prepare a surface-modified electrospun PAN membrane by coating it with thin film metallic glass (TFMG) (Zr 53 Cu 2 6Al 16 Ni 5 ) using magnetron sputtering. This coating not only provided an increase in hydrophobicity (WCA from 24° to 136°) but also gave enhanced chemical and thermal stability.…”

Section: Strategies For Fouling Mitigation and Improvement Of Membran...mentioning

confidence: 99%

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Nayak

Shivanna²,

Shwetharani

et al. 2022

ACS Omega

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Despite the advantages of high contaminant removal, operational flexibility, and technical advancements offered, the undesirable fouling property of membranes limits their durability, thus posing restrictions on their usage. An enormous struggle is underway to conquer this major challenge. Most of the earlier reviews include the basic concepts of fouling and antifouling, with respect to particular separation processes such as ultrafiltration, nanofiltration, reverse osmosis and membrane bioreactors, graphene-based membranes, zwitterionic membranes, and so on. As per our knowledge, the importance of nanofiber membranes in challenging the fouling process has not been included in any record to date. Nanofibers with the ability to be embedded in any medium with a high surface to volume ratio play a key role in mitigating the fouling of membranes, and it is important for these studies to be critically analyzed and reported. Our Review hence intends to focus on nanofiber membranes developed with enhanced antifouling and biofouling properties with a brief introduction on fabrication processes and surface and chemical modifications. A summary on surface modifications of preformed nanofibers is given along with different nanofiller combinations used and blend fabrication with efficacy in wastewater treatment and antifouling abilities. In addition, future prospects and advancements are discussed.

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Section: Strategies For Fouling Mitigation and Improvement Of Membran...mentioning

confidence: 99%

Efficacy of Electrospun Nanofiber Membranes on Fouling Mitigation: A Review

Nayak

Shivanna²,

Shwetharani

et al. 2022

ACS Omega

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“…Their superior wear resistance and robust adhesion characteristics make them promising candidates for a wide range of applications, particularly in biomedical and aerospace industries. [6,7]. Consequently, numerous studies have focused on characterizing the nanomechanical and tribological properties of MGTFs, which are essential for the development of micro-mechanical and biomedical devices [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Annealing-induced changes in wear resistance and nanomechanical properties of CuZr metallic glass thin films

Gao,

He,

Rathan

et al. 2023

Mater. Res. Express

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Over recent years, metallic glass thin films (MGTFs) have found extensive applications in advanced micro-engineering systems. Consequently, there is a need to thoroughly assess the nanomechanical and tribological behaviors of MGTFs to optimize the design of efficient components. In this study, we employed the nanoindentation technique in various modes to investigate the elastic heterogeneity, tribological response, and mechanical properties of CuZr amorphous films. Before conducting the mechanical tests, annealing treatments at 500 K and 600 K were performed to create samples with different stored energies. The thermal history analysis revealed that the annealing process reduced the stored energy in the microstructure. Furthermore, the pre-annealing treatment resulted in increased hardness and Young's modulus of the thin films. Additionally, higher annealing temperatures significantly improved the wear resistance of the MGTFs. Observing the serration dynamics in the scratching test, we noticed that the annealing treatment induced larger shear bands on the wear track side. Moreover, the increase in annealing temperature led to a reduction in elastic heterogeneity, which was consistent with the enthalpy relaxation values in the samples. This suggests that the annealing temperature enhanced the densely packed atomic structure, leading to the stabilization of the thin films.

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“…[32][33][34][35] Physical vapor deposition (radio-frequency magneto sputtering) can be used to fabricate TFMG coatings in various thicknesses on a variety of substrate materials, including the polymer composites used in water, oil, and gas separation. 36,37 Pd-based TFMG coating on the silicon substrate (PdCuSi) and hybrid of TFMG with semiconductor material (ZnO-NWs, nanorod and nanotube) can also be used for the detection of hydrogen gas and UV photodetector. [38][39][40][41] Magnetron sputtering is a straight-forward approach to the deposition of TFMG over a patterned liftoff material to create a hybrid micro-nanoscale device with high chemical stability and excellent mechanical strength.…”

Section: Introductionmentioning

confidence: 99%