期刊
CHEMSUSCHEM
卷 12, 期 18, 页码 4257-4264出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201901503
关键词
cigarette filter; double layer; photothermal; reduced graphene oxide; solar steam generation
资金
- National Natural Science Foundation of China [51663012, 51462021]
- Support Program for Hongliu Young Teachers of LUT [061805]
- Collaborative Innovation Team, Gansu Province, China [052005]
- 2019 Key Talent Project of Gansu
- Innovation and Entrepreneurship Talent Project of Lanzhou [2017-RC-33]
Solar steam generation by photothermal materials has recently emerged as a new and feasible approach to effectively harvest solar energy in a variety of applications. This work reports an efficient heat localization material based on the renewable cellulose acetate cigarette filters and a reduced graphene oxide coating (RGO-CF) as the light-to-heat conversion layer for solar steam generation. RGO-CF possessed an aligned structure with superhydrophilic nature, lower thermal conductivity (0.0733 Wm(-1) K-1), and broad light adsorption (approximate to 100 %). These characteristics enable rapid water transportation and excellent light-to-heat conversion by the resulting RGO-CF with an energy conversion efficiency of 94 % under stimulated solar illumination (1 kW m(-2)), which demonstrates that RGO-CF is a promising photothermal conversion material for solar steam generation. Such strategy for preparation of photothermal materials not only reduces the fabrication cost but also provides a fundamental guidance for the practical application of renewable polymer resources from used cigarette filters.
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