Contact
    Start Publications Wood-inspired superelastic MXene aerogels with superior ...
    ←  Publication Finder
    Attension

    Wood-inspired superelastic MXene aerogels with superior photothermal conversion and durable superhydrophobicity for clean-up of super-viscous crude oil

    Year: 2021

    Journal: Chem. Eng. J., Volume 421, OCT 1

    Authors: Cai, Chenyang; Wei, Zechang; Huang, Yangze; Fu, Yu

    Organizations: National Natural Science Foundation of China [31770608]; Jiangsu Specially-appointed Professorship Program [Sujiaoshi [2016] 20]; Science and Technology Innovation Project for Overseas Students of Nanjing City [Ningrenshehan [2018]214]; Postgraduate Research&Practice Innovation Program of Jiangsu Province [KYCX19_1087]; University Scientific Research Project of Jiangsu Province [201810298075Y]; Innovative training program for college students of Nanjing Forestry University [2018NFUSPITP176]; Analytical and Testing Assistance from Analysis and Test Center of Nanjing Forestry University

    Keywords: MXene aerogel; Photothermal conversion; Joule heating; Superhydrophobicity; Crude oil

    It remains a great challenge to develop functional aerogels with superior mechanical robustness, durable superhydrophobicity, and excellent photothermal conversion ability for the promising next generation of oil/ water separation materials and energy regulation systems. Herein, inspired by wood structures, we proposed a facile strategy to develop MXene aerogels with super-elasticity, self-cleaning, excellent joule heating and superior photothermal conversion ability. Functionalized cellulose nanocrystal was synthesized via green mechanochemistry, which served as a wetting modifier and dispersant. MXene was applied to construct functional networks in waterborne polyurethane. With fine-tuning of nucleation-driving, the desirable microstructures could be controllably diversified for structure-adaptable functionality. The wood-inspired MXene aerogel showed durable superhydrophobicity (CA approximate to 152), mechanical superelasticity (76.2% strain remaining after 100 compress-release cycles), highly efficient absorption capacity of light oil (63 g/g) and superior photothermal conversion ability. Also, the as-prepared MXene aerogel demonstrated ultrahigh viscosity crude oil (c.a.130000 mPa.s) absorption capacity of 24.5 g/g under 1 sun irradiation and recyclability of 76% after 5 cycles, much higher than those of the reported. This study provides a promising strategy for constructing integrated multifunctional aerogels with superior mechanical robustness to meet the increasing demands in many fields such as energy regulation devices and crude oil absorbents.
    View publication