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Highly Thermally Insulated and Superhydrophilic Corn Straw for Efficient Solar Vapor Generation
- Source :
- ACS Applied Materials & Interfaces; 20240101, Issue: Preprints
- Publication Year :
- 2024
-
Abstract
- Biomass-derived photothermal conversion materials are considered to be promising evaporator choices for cost-effective, sustainable, and environmentally friendly solar vapor generation. Herein we demonstrate a double-layer flamed straw, which is a typical solar-driven interfacial evaporator that can directly convert solar energy into heat and then localize heat at interface for vapor generation. Benefiting from the unique structure of a natural corn straw, the flamed straw exhibits a high solar absorbance of 91%, ultralow thermal conductivity (0.042 W m–1K–1), and a sufficient water supply. Notably, the flamed-straw evaporator achieves a fast evaporation rate of 1.497 kg m–2h–1and a high photothermal efficiency of 86% under 1 sun illumination, showing comparable efficiency with the reported studies. Our work highlights the promise of using the low-cost biomass-derived materials as highly effective solar vapor generators in the realm of seawater desalination and wastewater treatment.
Details
- Language :
- English
- ISSN :
- 19448244
- Issue :
- Preprints
- Database :
- Supplemental Index
- Journal :
- ACS Applied Materials & Interfaces
- Publication Type :
- Periodical
- Accession number :
- ejs52731556
- Full Text :
- https://doi.org/10.1021/acsami.0c01585