The tunable wettability in multistimuli-responsive smart graphene surfaces

Wan, Shanhong; Pu, Jibin; Zhang, Xiaoqian; Wang, Liping; Xue, Qi‐Kun

doi:10.1063/1.4775360

Cited by 27 publications

(20 citation statements)

References 37 publications

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“…Superhydrophilicity and superhydrophobicity can be tuned by the surface physical and chemical modifications [9,10]. Besides, surface wettability can be reversibly transitioned between hydrophobic and hydrophilic states by altering the pH of the test solution from 12 to 2 as reported by Wan et al [11]. Liu et al [12] reported that the contact angle (CA) was 164.3° on the hierarchical structure, turning into a superhydrophilic one (CA<5°) after UV illumination, which can be recovered through being placed in the dark or heated.…”

Section: Introductionmentioning

confidence: 85%

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Thermal-induced transformation of wetting behaviors on laser-textured SiC surfaces

Bai

Wang

2016

Sci. China Technol. Sci.

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Thermal-induced transformation of wetting behaviors on laser-textured silicon carbide (SiC) surfaces was discussed in this work. To investigate the transformation, a quenching experiment was conducted and an X-ray diffractometer was used to measure the residual stress. The experimental results demonstrate that the significantly enhanced hydrophilicity was induced by the increasing thermal residual stress of SiC materials after the aqueous quenching. It was found that the decrease in the contact angle increased with the increasing quenching temperature. Quenching at 350°C led to the change of contact angle from 89.28° to 70.88° for the smooth surface, while from 72.25° to 33.75° for the laser-textured surface with depth 8 μm. Further, the surface hydrophobicity was enhanced by the release of thermal residual stress after quenching, thereby leading to an increase in the contact angle over time. The transformation of wetting behaviors on laser textured SiC surfaces can be achieved mutually by the aqueous quenching method. wettability transformation, silicon carbide, laser processing, aqueous aquenching Citation:Bai S X, Wang R. Thermal-induced transformation of wetting behaviors on laser-textured SiC surfaces.

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Section: Introductionmentioning

confidence: 85%

“…Transformation of surface wetting behaviors has been widely studied under various conditions, including a range of surface modifications, solution pHs, light irradiation and so on [9][10][11][12][13][14]. Superhydrophilicity and superhydrophobicity can be tuned by the surface physical and chemical modifications [9,10].…”

Section: Introductionmentioning

confidence: 99%

Thermal-induced transformation of wetting behaviors on laser-textured SiC surfaces

Bai

Wang

2016

Sci. China Technol. Sci.

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“…The influence of substrates on the wettability of graphene is important for a variety of practical applications and also the subject of many studies that involve substrate‐supported graphene22, 23, 29–33 or graphene films 26, 27, 34–40. Theoretical analysis and calculation simulation have been performed 24, 25, 41–45.…”

Section: Wettability and Wetting Transparency Of Graphenementioning

confidence: 99%

Superhydrophobic Graphene‐Based Materials: Surface Construction and Functional Applications

et al. 2013

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Many naturally occurring surfaces have superhydrophobicity that fulfils their functional demands, which has inspired considerable interest to develop similar artificial superhydrophobic surfaces with a variety of functionalities. Graphene is an ideal candidate for functional superhydrophobic surfaces due to its exceptional physicochemical properties. The recent advances in this emerging field are summarized, including the wetting behavior of water on graphene and the formation of crumpling/nanoparticle/foam-induced hierarchical structures, with emphasis on fundamental understanding for related processes. The potential applications in energy, environmental remediation, and thermal management are also discussed.

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“…Wan et al [11], Zhang et al [12] and Liu et al [13], Kietziga et al [14] all studied the wettability transformation under different experimental conditions, such as pH value, surface morphology, UV illumination and * Corresponding author. Tel.…”

Section: Introductionmentioning

confidence: 99%