期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 17, 页码 19476-19482出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c01207
关键词
CuO@CuS/PDMS; nanowire arrays on copper foam; Crassula perforata-structured; superoleophilic; photothermal; crude oil
资金
- National Natural Science Foundation of China [21771001]
- Anhui Provincial Natural Science Foundation [1708085ME120]
- Key Natural Science Research Project of the Anhui Provincial Education Department [KJ2017A007]
- Program of Anhui Scientific and Technical Leaders Reserve Candidates
- Scholar Program for the Outstanding Innovative Talent of College Discipline (Specialty)
- Research Fund Program of Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology [2018K11]
In nature, leaf photosynthesis is the most common solar energy conversion system, which involves light absorption and conversion processes. Most interestingly, the leaves of a green plant are almost lamellar. Herein, inspired by the structure and light conversion capacity of plants, we developed a Crassula perforata-structured CuO@CuS/ poly(dimethylsiloxane) (CuO@CuS/PDMS) nanowire arrays (NWAs) on copper foam (CF) with effective light-to-heat conversion to clean up viscous crude oil (similar to 10(5 )mPa s) by in situ reducing the viscosity of crude oil. The C. perforata-structured CuO@CuS/PDMS core/shell NWAs were grown on copper foam with high density and uniformity, exhibiting excellent light adsorption and photothermal conversion efficiency. When simulated sunlight was irradiated on the structure of the CuO@CuS/PDMS NWAs/CF, abundant heat was generated and in situ reduced the viscosity of crude oil, which prominently increased the oil diffusion coefficient and sped up the oil sorption rate. The oil recovery procedure can realize a continuous clean up with the assistance of a pump device, and the crude oil adsorption capacity can reach up to 15.57 X 10(5) g/m(3) during a 5 min adsorption process. The high-performance photothermal self-heated superoleophilic CuO@CuS/PDMS NWAs/CF has a promise of promoting the practical applications of the sorbents in the clean up of viscous crude oil spills.
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