Smart light responsive polypropylene membrane switching reversibly between hydrophobicity and hydrophilicity for oily water separation

Chen, Zhe; Xie, Huan-Yin; Li, Yijing; Chen, Gui‐E; Xu, Sun‐Jie; Xu, Zheng

doi:10.1016/j.memsci.2021.119704

Cited by 45 publications

(13 citation statements)

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“…HM and HCM materials have been reported to dynamically and reversibly change their permeability or antifouling properties with temperature, 24,224,274,276,280 pH, 207,228 pressure, 280 electric field, 215 and light. 281,282 The introduction of covalent bonds between polymer chains using small organic molecules such as glutaraldehyde is the most commonly used cross-linking technique in HM and HCM fabrication. 20,181,186 Radical polymerization and crosslinking is the second most used method.…”

Section: Techno-economic Analysismentioning

confidence: 99%

“…Methacrylic acid (MAA), acrylic acid (AA), ,, and N , N -dimethylaminoethyl methacrylate (DMAEMA) , are commonly used pH-responsive monomers. HM and HCM materials have been reported to dynamically and reversibly change their permeability or antifouling properties with temperature, ,,,, pH, , pressure, electric field, and light. , …”

Section: Advances In Membrane Dewateringmentioning

confidence: 99%

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Advances in Membrane Separation for Biomaterial Dewatering

Diepenbroek,

Mehta,

Borneman

et al. 2024

Langmuir

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Biomaterials often contain large quantities of water (50−98%), and with the current transition to a more biobased economy, drying these materials will become increasingly important. Contrary to the standard, thermodynamically inefficient chemical and thermal drying methods, dewatering by membrane separation will provide a sustainable and efficient alternative. However, biomaterials can easily foul membrane surfaces, which is detrimental to the performance of current membrane separations. Improving the antifouling properties of such membranes is a key challenge. Other recent research has been dedicated to enhancing the permeate flux and selectivity. In this review, we present a comprehensive overview of the design requirements for and recent advances in dewatering of biomaterials using membranes. These recent developments offer a viable solution to the challenges of fouling and suboptimal performances. We focus on two emerging development strategies, which are the use of electric-field-assisted dewatering and surface functionalizations, in particular with hydrogels. Our overview concludes with a critical mention of the remaining challenges and possible research directions within these subfields.

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Section: Techno-economic Analysismentioning

confidence: 99%

Section: Advances In Membrane Dewateringmentioning

confidence: 99%

Advances in Membrane Separation for Biomaterial Dewatering

Diepenbroek,

Mehta,

Borneman

et al. 2024

Langmuir

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“…An illustration of the preparation of a photoresponsive membrane via surface grafting is given in the study of Chen et al, although the synthesized material was applied for oil/water separation. In the study, a commercial polypropylene (PP) membrane underwent plasma purging in an argon atmosphere followed by a polyreaction to introduce poly(acrylic acid) (PAA), leaving a PAA-grafted membrane (PAA-g-PP).…”

Section: Photoresponsie Membrane Synthesis and Gas Separation Perform...mentioning

confidence: 99%

Photoresponsive Polymer and Polymer Composite Membranes for Gas Separation

Gafiullina

Ladewig

Zhang

2022

ACS Appl. Polym. Mater.

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Stimuli-responsive materials, referred to as "smart" or "intelligent" materials, have gained significant attention in the separation fields, including gas separation. Among a variety of available stimuli, the use of light as a nondestructive, cost-efficient, chemical-reagent-free stimulus with a relatively fast response is very promising. Herein, we summarize and highlight the approaches applied for the synthesis of photoresponsive organic polymeric membranes, inorganic metal−organic framework thin films, and inorganic−organic mixed-matrix membranes. We discuss the application of these materials for gas separation and provide selected state-of-the-art examples from recently conducted studies. Additionally, the photoresponsive gas separation membrane testing cell plays a crucial role in evaluating and comparing the performance of photoresponsive membranes in the gas separation process. Therefore, we review the development of photoresponsive gas separation membrane testing cells along with the ascribed drawbacks and limitations. A third generation testing system designed to highlight test accuracy is proposed and discussed.

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“…The introduction of dispersants and flocculants into the water system poses a significant threat to marine microorganisms due to their inherent toxicity, resulting in severe ecological damage. 11 In recent years, with the development of membrane separation technology, membrane separation technology is considered to be an ideal and reliable technology for oily wastewater treatment because of its high separation efficiency, no secondary pollution, easy operation, and high separation efficiency 10,12,13 The types of oil-water separation membrane substrates are mainly including metal mesh, 14 non-solvent induced phase separation (NIPS) membranes, 15 and electrostatic spinning membranes. 16 Significant progress has been made in the design of micro-nano structures on the surface of metal mesh surfaces to change the composition and the surface energy.…”

Section: Introductionmentioning

confidence: 99%