期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 9, 期 31, 页码 16805-16813出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ta03695e
关键词
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资金
- National Natural Science Foundation of China [51672021, 51902015]
Metal-organic framework (MOF)-derived carbon nanostructure photothermal materials have shown remarkable potential in solar steam generation applications. This study prepared Cu-MOF derived carbon materials for photothermal conversion, achieving high conversion efficiency and investigating the effects of material compositions and structures. An efficient evaporator using polydimethylsiloxane as a matrix was also introduced for high evaporation rates and conversion efficiency.
Metal-organic framework (MOF)-derived carbon nanostructure photothermal materials have attracted tremendous attention, and have shown remarkable potential in the application of solar steam generation, due to their excellent light absorption properties, high chemical stability, and considerable photothermal conversion efficiency. In this paper, Cu-MOF derived carbon materials with regulable porous structures were prepared for the photothermal conversion application. It was found that the sample obtained at 500 degrees C shows the highest photothermal conversion efficiency as high as 64.42%. Besides, an efficient evaporator using polydimethylsiloxane as a matrix achieves an evaporation rate of 1.97 kg m(-2) h(-1) and a conversion efficiency of ca. 113.4% under one sun illumination. The effects of the compositions and structures of the materials on the photothermal conversion efficiency are also investigated, and the free radical concentration and the pore structures show a strong correlation with photothermal conversion efficiency.
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