Facile fabrication of durable mesh with reversible photo-responsive wettability for smart oil/water separation

Yang, Chenxi; Wang, Jian; Li, Juan; Zhang, Haiou; Shi, Chuang; Guo, Zhen; Bai, Bo

doi:10.1016/j.porgcoat.2021.106520

Cited by 14 publications

(14 citation statements)

References 56 publications

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“…These pieces of evidence clarify that PDMS was rationally decorated onto the surface of the CF. 27 On the whole, this evidence of FTIR spectroscopy indicates that the TA-APTES and PDMS@T-ZnO coatings were successfully decorated on the CF. XPS tests were used to confirm the chemical composition of the Janus CF.…”

Section: Surface Morphology and Chemical Compositionmentioning

confidence: 79%

“…26 Moreover, the porcupinefish-like structure is fabricated by the micrometer-scale tetrapod-shaped ZnO (T-ZnO) and poly-(dimethylsiloxane) (PDMS). 27 The abundant functional groups such as amines, catechols, and aromatic moieties readily endow hydrophilicity to the substrate. 28 Conversely, the porcupinefish-like structure of T-ZnO and PDMS converts the wetting behavior to hydrophobic mode on the selected side.…”

Section: Introductionmentioning

confidence: 99%

“…The PDA-inspired composition coating is composed of plant-derived tannic acid (TA) and 3-aminopropyltriethoxysilane (APTES) . Moreover, the porcupinefish-like structure is fabricated by the micrometer-scale tetrapod-shaped ZnO (T-ZnO) and poly(dimethylsiloxane) (PDMS) . The abundant functional groups such as amines, catechols, and aromatic moieties readily endow hydrophilicity to the substrate .…”

Section: Introductionmentioning

confidence: 99%

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Multibioinspired Design of a Durable Janus Copper Foam with Asymmetric and Cooperative Alternating Wettability for Efficient Fog Harvesting

Yang

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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Because of the water deficiency increase in deserts and inland areas, fog harvesting technologies are considered a charming sustainable approach to alleviate the shortage of freshwater resources. Nevertheless, the weak ability for fog capture, water transport, UV, and mechanical damage resistance are long-standing obstacles to realizing the whole fog harvest and water collection procedure via fog harvest materials. Here, inspired by the composition of mussels and the surface structure of porcupinefish, a Janus fog harvest copper foam (CF) comprising economical polydopamine (PDA)like composition coating (tannic acid−aminopropyltriethoxysilane, TA-APTES) and porcupinefish-like structured hydrophobic materials [polydimethylsiloxane (PDMS) with tetrapod-shaped ZnO] are synthesized. The benefits of Janus CF composites lie in that they have asymmetric and cooperative alternating wettability, thus speeding up the fog harvest. More importantly, the Janus CF composite exhibited excellent mechanical durability and UV resistance. The application experiments show that the fog harvesting rate of Janus CFs is 1.70 g cm −2 h −1 owing to the asymmetric wettability and cooperative alternating wettability. Overall, this work elucidates the role of the Janus asymmetric-wettability CF with cooperative alternating wettability in efficient fog water harvesting and gives new insight into the application of constructing a highly efficient fog water collector.

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Section: Surface Morphology and Chemical Compositionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multibioinspired Design of a Durable Janus Copper Foam with Asymmetric and Cooperative Alternating Wettability for Efficient Fog Harvesting

Yang

Wang

et al. 2023

ACS Sustainable Chem. Eng.

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“…Hereby, as showed in Fig. 6 f, HHF-PODS was placed on sandpaper (2000 Cw), and a 100 g weight was placed and moved 10 cm with a speed of 2 cm/s 25 . Clearly, HHF-PODS could sustain hydrophobicity and good oil–water separation performance after linear abrasion repeatedly, clarifying the excellent adhesion of the rough PODS coating on the HHF.…”

Section: Resultsmentioning

confidence: 99%

“…The flux of the immiscible oil/water mixtures separation procedure was elucidated by Flux = V /S t , where V is the volume of the permeated oil (mL), S is the contact area (cm 2 ) of HHF-PODS, and t is the separation time (min) 25 .…”

Section: Methodsmentioning

confidence: 99%

Novel fabrication of hydrophobic/oleophilic human hair fiber for efficient oil/water separation through one-pot dip-coating synthesis route

Yang

Wang

Zhang

et al. 2022

Sci Rep

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Frequent oil spill accidents and industrial wastewater discharge has always been one of the most severe worldwide environmental problems. To cope with this problem, many fluorine-containing and high-cost materials with superwettability have been extensively applied for oil–water separation, which hinders its large-scale application. In this work, a novel human hair fiber (HHF)-polymerized octadecylsiloxane (PODS) fiber was fabricated with a facile one-pot dip-coating synthesis approach, inspired by the self-assembly performance and hydrophobicity of OTS modification. The benefits of prominent hydrophobic/lipophilic behavior lie in the low surface energy, and a rough PODS coating was rationally adhered on the surface of HHF. Driven solely by gravity and capillary force, the HHF-PODS showed excellent oil/water separation efficiency (> 99.0%) for a wide range of heavy and light oil/water mixtures. In addition, HHF-PODS demonstrated durability toward different harsh environments like alkaline, acid, and salty solutions.

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Responsive materials based on coordination bonds

Chen,

Zhao,

et al. 2023

Responsive Materials

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Responsive materials can respond to different external stimuli by changing their chemical or/and physical properties, thus being useful for various applications such as drug delivery, bioimaging, actuators, and sensors. A common strategy for constructing responsive materials is to introduce dynamic covalent bonds or noncovalent interactions into polymer systems. Compared with noncovalent interactions and other covalent bonds, coordination bonds have the peculiarity that their bond strength and dissociation rate can be tuned to a greater extent. Such tunability makes coordination bonds uniquely advantageous in constructing stimuli‐responsive materials. Herein, we summarize the recent progress of responsive materials based on coordination bonds that are classified into seven categories, that is, thermo‐responsive, photo‐responsive, electro‐responsive, mechano‐responsive, chemo‐responsive, pH‐responsive, and other responsive materials, according to the type of external stimuli. The corresponding mechanism, design strategy, and research status of each category are comprehensively summarized. Finally, the prospects and challenges for the development of stimuli‐responsive materials based on coordination bonds are discussed.

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Facile fabrication of durable mesh with reversible photo-responsive wettability for smart oil/water separation

Cited by 14 publications

References 56 publications

Multibioinspired Design of a Durable Janus Copper Foam with Asymmetric and Cooperative Alternating Wettability for Efficient Fog Harvesting

Multibioinspired Design of a Durable Janus Copper Foam with Asymmetric and Cooperative Alternating Wettability for Efficient Fog Harvesting

Novel fabrication of hydrophobic/oleophilic human hair fiber for efficient oil/water separation through one-pot dip-coating synthesis route

Responsive materials based on coordination bonds

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