A paraffin-wax-infused porous membrane with thermo-responsive properties for fouling-release microfiltration

Li, Rishun; Zhao, Lizhi; Yao, Anfeng; Li, Zhixin; Wang, Fan; Ding, Xiaoli; An, Huiqin; Ye, Hui; Zhang, Yuzhong; Li, Hong

doi:10.1016/j.memsci.2022.121284

Cited by 8 publications

(3 citation statements)

References 44 publications

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“…In particular, organic PCMs have great potential for intelligent wearable devices, energy-efficient construction, and battery thermal management [6,7]. Furthermore, organic PCMs can also be useful in solid slippery, antifouling, and liquid transport applications [8,9].…”

Section: Introductionmentioning

confidence: 99%

A Novel Sandwich-Structured Phase Change Composite with Efficient Photothermal Conversion and Electromagnetic Interference Shielding Interface

Xu,

Li,

Zhou

et al. 2024

Materials

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Stability and multifunctionality greatly extend the applications of phase change materials (PCMs) for thermal storage and management. Herein, CuS and Fe3O4 nanoparticles were successfully loaded onto cotton-derived carbon to develop a multifunctional interface with efficient photothermal conversion and electromagnetic interference (EMI) shielding properties. 1,3:2,4-di-(3,4-dimethyl) benzylidene sorbitol (DMDBS) and expanded graphite (EG) formed an organic/inorganic three-dimensional network framework to encapsulate 1-octadecanol (OD) by self-assembly. Finally, multifunctional shape-stabilized PCMs (SSPCMs) with the sandwich structure were prepared by the hot-press process. Multifunctional SSPCMs with high load OD (91%) had favorable thermal storage density (200.6 J/g), thermal stability, and a relatively wider available temperature range with improved thermal conductivity to support the thermal storage and management realization. Furthermore, due to the synergistic enhancement of two nanoparticles and the construction of the carbon network with cotton carbon and EG, highly efficient photothermal conversion (94.4%) and EMI shielding (68.9 dB average, X-band) performance were achieved at about 3 mm thickness, which provided the possibility of the multifunctional integration of PCMs. Conclusively, this study provides new insights towards integrating solar energy utilization with the comprehensive protection of related electronics.

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Section: Introductionmentioning

confidence: 99%

A Novel Sandwich-Structured Phase Change Composite with Efficient Photothermal Conversion and Electromagnetic Interference Shielding Interface

Xu,

Li,

Zhou

et al. 2024

Materials

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“…21 Compared to conventional membranes, LIMs exhibit significantly improved fouling resistance. 21,24,25 When the pore wall is preferentially wetted by the infused liquid compared to the permeating fluid, the infused liquid forms a stable layer that coats the pore wall during permeation. The presence of this infused liquid layer blocks the attachment of foulants onto the pore wall and therefore can theoretically eliminate membrane fouling.…”

Section: ■ Introductionmentioning

confidence: 99%

“…If the permeating fluid contacts only the infused liquid, then θ = 180° . Compared to conventional membranes, LIMs exhibit significantly improved fouling resistance. ,, When the pore wall is preferentially wetted by the infused liquid compared to the permeating fluid, the infused liquid forms a stable layer that coats the pore wall during permeation. The presence of this infused liquid layer blocks the attachment of foulants onto the pore wall and therefore can theoretically eliminate membrane fouling. − LIMs have been used for air purification, , suspended particle separation, multiphase liquid separation, emulsification, and to mitigate biofouling. , For oil/water separation, Bazyar et al designed a Krytox-infused poly(vinylidene fluoride) (PVDF) membrane to remove free oil from a continuous aqueous phase .…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Imaging of Emulsion Separation through Liquid-Infused Membranes Using Confocal Laser Scanning Microscopy

Song

2023

Langmuir

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The removal of emulsified oils from water has always been a challenge due to the kinetic stability resulting from the small droplet size and the presence of stabilizing agents. Membrane technology can treat such mixtures, but fouling of the membrane leads to dramatic reductions in the process capacity. Liquid-infused membranes (LIMs) can potentially resolve the issue of fouling. However, their low permeate flux compared with conventional hydrophilic membranes remains a limitation. To gain insight into the mechanism of transport, we use 3D images acquired by confocal laser scanning microscopy (CLSM) to reconstruct the sequence of events occurring during startup and operation of the LIM for removal of dispersed oil from oil-in-water emulsions. We find evidence for coalescence of oil droplets on the surface of and formation of oil channels within the LIM. Using image analysis, we find that the rate at which oil channels are formed within the membrane and the number of channels ultimately govern the permeate flux of oil through the LIMs. Oil concentration in the feed affects the rate of coalescence of oil on the surface of the LIM, which, in turn, affects the channel formation dynamics. The channel formation dynamics also depend on the viscosity of the infused liquid and the operating pressure. A higher affinity to the pore wall for infused liquid than permeating liquid is essential to antifouling behavior. Overall, this work offers insight into the selective permeation of a dispersed liquid phase through a LIM.

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In-situ fabricated hierarchical nanostructure on titanium alloy as highly stable and durable super-lubricated surface for anti-biofouling in marine engineering

Yue

Jiang

et al. 2023

Chemical Engineering Journal

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A paraffin-wax-infused porous membrane with thermo-responsive properties for fouling-release microfiltration

Cited by 8 publications

References 44 publications

A Novel Sandwich-Structured Phase Change Composite with Efficient Photothermal Conversion and Electromagnetic Interference Shielding Interface

A Novel Sandwich-Structured Phase Change Composite with Efficient Photothermal Conversion and Electromagnetic Interference Shielding Interface

Three-Dimensional Imaging of Emulsion Separation through Liquid-Infused Membranes Using Confocal Laser Scanning Microscopy

In-situ fabricated hierarchical nanostructure on titanium alloy as highly stable and durable super-lubricated surface for anti-biofouling in marine engineering

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