Seeded Mineralization Leads to Hierarchical CaCO3 Thin Coatings on Fibers for Oil/Water Separation Applications

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Date
2018
Authors
Mao, Li-Bo
Jiang, Yuan
Liu, Ming-Feng
Huang, Qiaoling
Yu, Zhiyang
Wang, Shutao
Yu, Shu-Hong
Lin, Changjian
Liu, Xiang Yang
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Langmuir ; 34 (2018), 9. - pp. 2942-2951. - ISSN 0743-7463. - eISSN 1520-5827
Abstract
Like their biogenic counterparts, synthetic minerals with hierarchical architectures should exhibit multiple structural functions, which nicely bridge the boundaries between engineering and functional materials. Nevertheless, design of bioinspired mineralization approaches to thin coatings with distinct micro/nanotextures remains challenging in the realm of materials chemistry. Herein, a general morphosynthetic method based on seeded mineralization was extended to achieve prismatic-type thin CaCO3 coatings on fibrous substrates for oil/water separation applications. Distinct micro/nanotextures of the overlayers could be obtained in mineralization processes in the presence of different soluble (bio)macromolecules. These hierarchical thin coatings therefore exhibit multiple structural functions including underwater superoleophobicity, ultralow adhesion force of oil in water, and comparable stiffness/strength to the prismatic-type biominerals found in mollusk shells. Moreover, this controllable approach could proceed on fibrous substrates to obtain robust thin coatings, so that a modified nylon mesh could be employed for oil/water separation driven by gravity. Our bioinspired approach based on seeded mineralization opens the door for the deposition of hierarchical mineralized thin coatings exhibiting multiple structural functions on planar and fibrous substrates. This bottom-up strategy could be readily extended for the syntheses of advanced thin coatings with a broad spectrum of engineering and functional constituents.
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540 Chemistry
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ISO 690MAO, Li-Bo, Yuan JIANG, Ming-Feng LIU, Qiaoling HUANG, Zhiyang YU, Shutao WANG, Shu-Hong YU, Changjian LIN, Xiang Yang LIU, Helmut CÖLFEN, 2018. Seeded Mineralization Leads to Hierarchical CaCO3 Thin Coatings on Fibers for Oil/Water Separation Applications. In: Langmuir. 34(9), pp. 2942-2951. ISSN 0743-7463. eISSN 1520-5827. Available under: doi: 10.1021/acs.langmuir.7b03813
BibTex
@article{Mao2018-03-06Seede-41797,
  year={2018},
  doi={10.1021/acs.langmuir.7b03813},
  title={Seeded Mineralization Leads to Hierarchical CaCO<sub>3</sub> Thin Coatings on Fibers for Oil/Water Separation Applications},
  number={9},
  volume={34},
  issn={0743-7463},
  journal={Langmuir},
  pages={2942--2951},
  author={Mao, Li-Bo and Jiang, Yuan and Liu, Ming-Feng and Huang, Qiaoling and Yu, Zhiyang and Wang, Shutao and Yu, Shu-Hong and Lin, Changjian and Liu, Xiang Yang and Cölfen, Helmut}
}
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