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A hierarchical and superhydrophobic ZnO/C surface derived from a rice-leaf template

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Abstract

A facile approach is reported to prepare biomorphic ZnO on a carbon substrate (ZnO/C) that retained the natural structures of the rice leaf through immersing the carbon derived from the leaf in a Zn(NO3)2 solution, and then sintering it in argon. The hydrophobicity of the surfaces of the products thus obtained was investigated. This ZnO/C exhibited excellent superhydrophobicity after it was modified with fluorine silane. The water contact angle of the resulting product was 164°, which exceeds that of the rice leaf (158°) and is much higher than that of smooth carbon covered with the same fluorine silane (114°).

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Acknowledgments

The authors wish to express thanks to the National Natural Science Foundation of China (No. 51002077), Foundation of “Zijin Star” of “Excellence Program” of Nanjing University of Science and Technology (NJUST), and National Innovative Experiment Program of Undergraduated Students.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China

    Tianchi Wang, Lijing Chang, Limin Zhuang, Sen Yang & Yang Jia

  2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA

    Chingping Wong

Authors
  1. Tianchi Wang
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  2. Lijing Chang
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  3. Limin Zhuang
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  4. Sen Yang
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  5. Yang Jia
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  6. Chingping Wong
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Correspondence to Tianchi Wang.

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Wang, T., Chang, L., Zhuang, L. et al. A hierarchical and superhydrophobic ZnO/C surface derived from a rice-leaf template. Monatsh Chem 145, 65–69 (2014). https://doi.org/10.1007/s00706-013-1004-9

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  • DOI: https://doi.org/10.1007/s00706-013-1004-9

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