Modification of porous stainless steel hollow fibers by adding TiO2, ZrO2 and SiO2 nano-particles

Wang, Ming; Zhong, Qifeng; Xu, Zejun; Ma, Xiao‐Hua

doi:10.1007/s10934-016-0132-0

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…Therefore, preparation methods affect the final mechanical properties of the hollow fibres, even though SS particles were the key common element in their fabrication. Recently this area of research is expanding rapidly mainly due to the flexibility of using SS particles as building blocks and methods to prepare SS hollow fibres using an assisted robotic method [10], spiral SS hollow fibres [11], threechannel SS hollow fibres [12], and mixed matrix SS hollow fibre containing carbon [13] and ceramics [14]. All these work led to different morphologies and mechanical properties, though there is limited work addressing the effect of morphology in the final mechanical strength of SS hollow fibres.…”

Section: A U T H O R M a N U S C R I P T A U T H O R M A N U S C R I P Tmentioning

confidence: 99%

The Neck to Particle Ratio Effect on the Mechanical and Morphological Sintering Features of Porous Stainless Steel (SS) Hollow Fibers

et al. 2018

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Section: A U T H O R M a N U S C R I P T A U T H O R M A N U S C R I P Tmentioning

confidence: 99%

The Neck to Particle Ratio Effect on the Mechanical and Morphological Sintering Features of Porous Stainless Steel (SS) Hollow Fibers

et al. 2018

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“…Among them above, hanging slurry mode is the most commonly used one and it is easy to achieve in our laboratory. The film layer prepared by this method is uniform, and its thickness is easy to control and the experimental operation is also simple [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Effects of sintering temperature and particle size on permeability of functionally gradient composite porous materials prepared by hanging slurry process

Liu

Wang

et al. 2020

SN Appl. Sci.

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Porous materials have excellent functions in filtration and purification, and gradient composite porous materials enrich the product types of porous materials in the same field. In the preparation of metal-ceramic gradient composite porous materials, the matching relationship between the pore morphology and pore size of the metal porous matrix and the coated powder particles will seriously affect the structure and performance of the ceramic membrane. This work mentions the different size range (60, 100, 200 and 400 mesh) of 316 L stainless steel powder particles as the raw materials which are at different sintering temperatures of 1170, 1200 and 1230 °C, the fabrication of porous 316 L stainless steel substrate which was made by hanging slurry preparation of precursor, at the same time using Ar protection at different sintering temperatures (650, 700, 750 and 800 °C) to the preparation of metal-ceramic composite gradient according to different matrix apertures of porous materials. The pore structure, microstructure and morphology characteristics of different samples both of matrix and functionally gradient composite were analyzed and characterized. On the basis of test of permeability of functionally gradient composite porous materials, this kind of composite gradient porous material can be excellent at part of permeability which matrix was made by 400 mesh 316 L stainless steel powder particles at sintering temperature of 1230 °C and then dealed with the process of hanging slurry to became the precursor which ceramic membrane was prepared at sintering temperature of 650 °C. Maximum aperture of the porous substrate filtration precision under the combination of ceramic membrane layer can be increased by 96.3%. By observing the change of pore morphology of porous matrix, this paper aims to make a research of influence of sintering temperature and powder particles size on permeability of the functionally gradient composite porous materials, and also provide a reference for improving the filtration accuracy of existing porous materials.

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“…In recent years, stainless steel hollow fibers (SSHFs) with different configurations have been developed, because of their typical properties such as high mechanical strength, good thermal shock resistance, and easy integration into modules by welding . However, the interests of recent research on SSHFs have mainly been focused on their preparation process; − direct practical application of SSHFs is unavailable, because of their drawbacks of rough surface and large pore size distribution. Since it is a highly energy-consuming task to obtain finer stainless steel powders (SSPs), the composite membranes seem to be a promising alternative to acquire SSHFs with narrow pore size distribution.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication and Application of Superhydrophilic Stainless Steel Hollow Fiber Microfiltration Membranes

Wang

Cao

et al. 2017

ACS Sustainable Chem. Eng.

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Superhydrophilic stainless steel hollow fiber microfiltration membranes (SSHF-MFs) were developed through a facile dip-coating method, followed by sintering at a low temperature of 500 °C. A novel mediating additive was explored to mediate the coating suspensions. The additive, which could form hydrogen bonds with TiO2 agglomerations, facilitated the formation of a continuous TiO2 layer on the rough surface of stainless steel hollow fibers (SSHFs). The fabricated SSHF-MFs exhibited superhydrophilic and underwater superoleophobicity wettability, which enabled SSHF-MFs to be applied to antifouling fields. The fouling resistance of SSHF-MFs for oil/water emulsion, cake layer foulant (sodium alginate, SA), and adhesive foulant (bovine serum albumin, BSA) were investigated systematically. SSHF-MFs exhibited superior antifouling properties and high rejections of 99% and 90% for oil/water emulsion and SA foulant solution, respectively. For the adhesive BSA solution, SSHF-MFs still showed good antifouling property after washing with a dilute alkaline solution and superior separation performance (90%). Meanwhile, SSHF-MFs exhibited an excellent separation performance for polystyrene microspheres (100 nm) with a rejection of 100%. In conclusion, SSHF-MFs showed great potential, not only in traditional microfiltration fields, such as solid–liquid separation, but also in the antifouling field, such as oil/water separation. The facile fabrication conditions and superior wettability further improved the sustainability of SSHF-MFs in practical applications.

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Modification of porous stainless steel hollow fibers by adding TiO2, ZrO2 and SiO2 nano-particles

Cited by 8 publications

References 35 publications

The Neck to Particle Ratio Effect on the Mechanical and Morphological Sintering Features of Porous Stainless Steel (SS) Hollow Fibers

The Neck to Particle Ratio Effect on the Mechanical and Morphological Sintering Features of Porous Stainless Steel (SS) Hollow Fibers

Effects of sintering temperature and particle size on permeability of functionally gradient composite porous materials prepared by hanging slurry process

Facile Fabrication and Application of Superhydrophilic Stainless Steel Hollow Fiber Microfiltration Membranes

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