Gentle fabrication of colorful superhydrophobic bamboo based on metal-organic framework

Yingzhuo Lu; Yitian Wu; Jin Yang; Xinqiang Zhu; Fangli Sun; Lu Li; Zhehong Shen; Yajun Pang; Qiang Wu; Hao Chen

doi:10.1016/j.jcis.2021.03.022

Gentle fabrication of colorful superhydrophobic bamboo based on metal-organic framework

J Colloid Interface Sci. 2021 Jul:593:41-50. doi: 10.1016/j.jcis.2021.03.022. Epub 2021 Mar 10.

Authors

Yingzhuo Lu¹, Yitian Wu¹, Jin Yang¹, Xinqiang Zhu¹, Fangli Sun¹, Lu Li¹, Zhehong Shen², Yajun Pang³, Qiang Wu¹, Hao Chen⁴

Affiliations

¹ School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
² School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China. Electronic address: zhehongshen@zafu.edu.cn.
³ School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China. Electronic address: yjpang@zafu.edu.cn.
⁴ School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China. Electronic address: haochen@zafu.edu.cn.

PMID: 33744549
DOI: 10.1016/j.jcis.2021.03.022

Abstract

The efficient use of abundant renewable bamboo as high value-added decoration and building materials is of great significance for mitigating carbon dioxide emissions and maintaining sustainable development. The key challenge is to explore efficient and gentle methods to improve the undesirable surface properties of bamboo. Herein, a colorful and superhydrophobic bamboo is gently fabricated by a facile in-situ growth and conversion method based on metal-organic framework (for constructing micro-nano composite structures) and subsequent coating of sodium laurate (for reducing surface energy) at room temperature. The resulting sodium laurate-coated cobalt-nickel double hydroxide layer (CoNi-DH-La) is demonstrated as an efficient superhydrophobic layer to exhibit excellent chemical and mechanical stability. Impressively, the as-obtained CoNi-DH-La-coated bamboo sheet (BS-CoNi-DH-La) shows positive performances in terms of mildew resistance, flame retardancy, and self-cleaning. More importantly, this gentle method can endow bamboo with multiple unfading colors by changing the type of inorganic salts during the preparation process and display good potential for large-scale production.

Keywords: Bamboo; Colorful; Metal-organic framework; Superhydrophobic.