The zein-based fiber membrane with switchable superwettability for on-demand oil/water separation

Teng, Defang; Zhao, Tienan; Xu, Yewei; Zhang, Xiaomin; Zeng, Yongchun

doi:10.1016/j.seppur.2021.118393

Cited by 39 publications

(15 citation statements)

References 48 publications

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“…A zein micronanofiber layer can be prepared in a short time on the substrate (details in the Experimental Section). ,, Using the same device, we carried out electrospinning with a water/acetic acid mixed spinning solution of gelatin and B. striata at a certain concentration under 20 kV. , The reverse side of the previously obtained nonwoven substrate is used as the new receiving substrate (see the Experimental Section for details). Then, the sandwich-structured trilayer J-AFM can be obtained as shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

Bioinspired Janus All-Natural Electrospinning Membranes with Directional Water Transport as Ecofriendly Dry Facial Masks

Guo

et al. 2022

ACS Sustainable Chem. Eng.

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Facial masks cause huge pollution and resource waste, posing a serious threat to the ecological environment and human health. Inspired by lotus leaves, a bioinspired dry Janus all-natural facial mask (J-AFM) has been developed by a simple green-solvent-based electrospinning method. The dry J-AFM can drive water from the outside directionally to dissolve the inner nanofiber layer of nutrients quickly, while keeping the outside dry and delaying moisture evaporation. Compared with commercial wet facial masks, the dry J-AFM can reduce the total weight by 87 and 100% to avoid plastic pollution by using paper-based packaging. In addition, the waste of water and active nutrients can be reduced by 100%. The dry J-AFM with good antibacterial activity and biocytocompatibility can not only avoid the use of preservatives but also shows an obvious skincare effect. This research can trigger the reform of ecofriendly facial masks and guide the chemical industry toward sustainable and healthy development.

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Section: Resultsmentioning

confidence: 99%

Bioinspired Janus All-Natural Electrospinning Membranes with Directional Water Transport as Ecofriendly Dry Facial Masks

Guo

et al. 2022

ACS Sustainable Chem. Eng.

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“…For example, Teng et al reported that electrospraying zein/silicon dioxide (SiO 2 ) spheres fabricated the SiO 2 /zein/PAN fiber onto the as-prepared zein/ PAN fibers (Figure 7b). [83] Structure determines performance. Figure 7c shows the structure of zein molecules: the top and bottom are hydrophilic glutamine-rich bridges.…”

Section: Natural Biomass Raw Materialsmentioning

confidence: 99%

Section: Bioinspired Janus-featured Surfacementioning

confidence: 99%

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Special Superwetting Materials from Bioinspired to Intelligent Surface for On‐Demand Oil/Water Separation: A Comprehensive Review

Yang

Guo

Liu

2022

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Since superwetting surfaces have emerged, on-demand oil/water separation materials serve as a new direction for meeting practical needs. This new separation mode uses a single porous material to allow oil-removing and water-removing to be achieved alternately. In this review, the fundamentals of wettability are systematically summarized in oil/water separation. Most importantly, the two states, bioinspired surface and intelligent surface, are summarized for on-demand oil/water separation. Specifically, bioinspired surfaces include micro/nanostructures, bioinspired chemistry, Janus-featured surfaces, and dual-superlyophobic surfaces that these superwetting materials can possess asymmetric wettability in one structure system or opposite underliquid wettability by prewetting. Furthermore, an intelligent surface can be adopted by various triggers such as pH, thermal and photo stimuli, etc., to control wettability for switchable oil/water separation reversibly, expressing a thought beyond nature to realize innovative oil/water separation by external stimuli. Remarkably, this review also discusses the advantages of all the materials mentioned above, expanding the separation scope from the on-demand oil/water mixtures to the multiphase immiscible liquid-liquid mixtures. Finally, the prospects of on-demand oil/water separation materials are also concluded.

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“…In recent years, biodegradable absorbent materials have been successfully prepared for the effective absorption of oily pollutants and the separation of oily substances from oil-water mixture (Duman et al, 2022a(Duman et al, , 2022b. In another side, the rough surface and low surface energy were important effects during preparation of hydrophobic materials for oilwater separation (Wang, Wen, et al, 2021), and SiO 2 nanoparticles (nano-SiO 2 ) could adjust surface wettability of oil-absorbing materials (Hao et al, 2019;Teng et al, 2021). It was also found that octadecanethiol (OCT) could enhance the hydrophobicity of the substrate due to the strong hydrophobicity of long alkyl groups (Deng et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Preparation of porous biomass‐based sponge with zein‐alginate for oil absorption

Liu

Huang

Wang

et al. 2022

Water & Environment J

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In order to effectively promote the treatment of pollution containing organics or crude oil, many oil‐absorbing materials were explored. However, most of them were synthetic polymers, which was difficult to be decomposed and easily cause secondary pollution. In this study, zein and sodium alginate (SA), two cheap natural polymer materials, were used as eco‐friendly and biodegradable biomass materials; a novel porous biomass‐based sponge (ZS‐PBSp) was synthesized. Then, by impregnating with SiO2 nanoparticle (nano‐SiO2) and octadecanethiol (OCT), the modified porous sponge (ZSSiOsp) was obtained. ZSSiOsp was characterized by scanning electron microscopy (SEM), infrared (IR), X‐ray diffraction (XRD) and thermogravimetric analysis (TGA) and applied to adsorb organics, such as organic solvents, petroleum products and cooking oil. It indicated that the surface of ZSSiOsp was rough, and its water contact angle (WCA) increased to 131.5°. ZSSiOsp effectively adsorbed organics, its absorption capacity got to 115.7% for chloroform and 77.6% for rapeseed oil, respectively. It also effectively separated oily substances from oil–water mixture. In summary, the obtained ZSSiOsp was an eco‐friendly material for oil absorption and separation, which was a kind of promising candidate in water treatment and environmental protection.

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The zein-based fiber membrane with switchable superwettability for on-demand oil/water separation

Cited by 39 publications

References 48 publications

Bioinspired Janus All-Natural Electrospinning Membranes with Directional Water Transport as Ecofriendly Dry Facial Masks

Bioinspired Janus All-Natural Electrospinning Membranes with Directional Water Transport as Ecofriendly Dry Facial Masks

Special Superwetting Materials from Bioinspired to Intelligent Surface for On‐Demand Oil/Water Separation: A Comprehensive Review

Preparation of porous biomass‐based sponge with zein‐alginate for oil absorption

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