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    Easily Fabricated Low-Energy Consumption Joule-Heated Superhydrophobic Foam for Fast Cleanup of Viscous Crude Oil Spills

    Year: 2021

    Journal: ACS Appl. Mater. Interfaces, Volume 13, NOV 3, page 51652–51660

    Authors: Li, Zhangdi; Tian, Qiong; Xu, Jicheng; Sun, Shouzhen; Cheng, Ying; Qiu, Fengxian; Zhang, Tao

    Organizations: National Natural Science Foundation of China [21706100, 21878132]; Natural Science Foundation of Jiangsu Province [BK20211126]; China Postdoctoral Science Foundation [2020M681740, 2021T140578]; Postgraduate Research and Practice Innovation Program of Jiangsu Province [KYCX21_3388]; 169 Project Scientific Research Project of Zhenjiang City; Zhenjiang Science & Technology Program [SH2021004]; Qing Lan Project of Jiangsu Province; Xingtai Polytechnic College Application Innovation Project [202008]

    Keywords: copper foam; Joule heating; superhydrophobicity; cleanup; crude oil

    Effective cleanup of viscous crude oil spills remains a persistent and crippling challenge. Herein, this work presents a Joule-heated super-hydrophobic flower-like Cu-8(PO3OH)(2)(PO4)(4)center dot 7H(2)O-coated copper foam (SHB-CF@CP) for rapid cleanup of viscous crude oil spills via a facile strategy. The SHB-CF@CP shows outstanding water repellency and excellent stability of hydrophobicity in harsh environments. Due to the high electrical conductivity and thermal conductivity, it requires lower power energy consumption (less than 1 V of voltage input) to raise the temperature significantly, which dramatically reduces the viscosity of crude oil (from similar to 2 x 10(5) to similar to 60 mPa s) and then increases the oil absorption rate, effectively avoiding the poor mobility and ineffective absorption of viscous crude oil. Notably, the SHB-CF@CP can achieve continuous and quick cleanup of crude oil under in situ pumping force. The high-performance Joule-heated SHB-CF@CP sorbent with a strong porous skeleton, corrosion resistance, and low predicted operational costs holds a promise of promoting its practical applications in the cleanup of intractable and large-area viscous oil spills.
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