| CCE: Catalysis and Chemical Engineering 2022 | |||||
| 작성자 | 김** | 작성일 | 2022-05-04 | 조회수 | 93 |
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https://catalysis.unitedscientificgroup.org/
Oral Presentation Sungdo Kim Multifunctional TiO2 Nanorods Grown on Glassy Carbon Foam for Efficient Solar Vapor Generation
One effective way to solve drinking water depletion is to distill seawater using solar steam generator(SVG). Herein, we demonstrate a highly efficient SVG developed via a simple morphological alteration, from a two-dimensional (2D) TiO2 film (TF) to one-dimensional (1D) TiO2 nanorods (TNRs) grown on a glassy carbon foam (CF). Given that evaporation is primarily a surface physical phenomenon, the 1D morphology of TNRs provides a higher evaporation surface area compared to its 2D counterpart. Additionally, the super hydrophilic nature of TNRs ensures an adequate supply of water to the evaporation surface via effective capillary action. Consequently, the 1D TNRs properly utilize photothermal heat, which results in a significant reduction in the convection heat loss. Owing to the synergistic effect of these characteristics, TNRs/CF acquired a high evaporation rate ~2.23 kg m-2 h-1 and an energy utilization efficiency ~67.1% under one sun irradiation. Moreover, the excellent stability, desalination and selfcleaning capabilities and the facile fabrication method make TNRs/CF suitable for the costeffective,large-scale device application.
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