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Robust fluorine-free colorful superhydrophobic PDMS/NH2-MIL-125(Ti)@cotton fabrics for improved ultraviolet resistance and efficient oil–water separation

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Abstract

Superhydrophobic cotton fabrics with improved ultraviolet resistance were prepared via in situ growing NH2-MIL-125(Ti)(Ti-MOF) nanoparticles on cotton fibers and subsequently coating with polydimethylsiloxane (PDMS) under room temperature. The synergetic effect of Ti-MOFs nanoparticles and PDMS was critical and essential for obtaining a superhydrophobic coating with anti-UV property. The surface microstructure, chemical composition, and superhydrophobic property of the as-prepared fabrics were characterized by K/S value, scanning electron microscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy, and water contact angle (WCA) measurements. The as-prepared cotton fabrics not merely exhibited desirable superhydrophobic property with a water contact angle (WCA) of 154.7 ± 0.7° and a sliding angle of 3.6°, but also displayed the considerable UV resistance. The oil–water separation, stability of UV protection and superhydrophobicity were also investigated. The superhydrophobicity, anti-ultraviolet property, and K/S value of as-prepared PDMS/Ti-MOFs@cotton fabrics were stable after 300 cycles of abrasion and 5 cycles of washing. The facile synthesis technique provided a simple method for scalable construction of multifunctional fabrics.

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Acknowledgments

The authors thank the National Key Research and Development Program of China (2016YFA0101102), and Educational Commission of Hubei Province (D20181701) for financial support.

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Correspondence to Jingjing Huang or Shaojin Gu.

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Yang, Y., Huang, W., Guo, Z. et al. Robust fluorine-free colorful superhydrophobic PDMS/NH2-MIL-125(Ti)@cotton fabrics for improved ultraviolet resistance and efficient oil–water separation. Cellulose 26, 9335–9348 (2019). https://doi.org/10.1007/s10570-019-02707-3

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  • DOI: https://doi.org/10.1007/s10570-019-02707-3

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