Efficient Solar Steam Generation by Multiscale Photothermal Structures Derived from Cactus Stems

• DOI: 10.1021/acs.langmuir.4c02103
• Publication Date: 2024-08-08T19:53:06Z
• Authors: Chuchu Zhang; Yanjun Li; Xing Wei; Jiapeng Song; Yuanjin Wang; Guowei Li; Zhenggang Rao; Linfeng Fei

Solar steam generation (SSG) is a promising technique that may find applications in seawater desalination, sewage treatment, etc. The core component for SSG devices photothermal materials, among which biomass-derived carbon materials have been extensively attempted due to their low cost, wide availability, and diversified microstructures. However, the practical performance of these not satisfactory because multifaceted structural requirements scenarios. In this work, cactus stems, possess abundant multiscaled pores simultaneous sunlight gathering water evaporation, are applied as structure after mild heat treatment. Consequently, device based on carbonized stems delivers high (an absorption rate 93.7% solar spectrum, an evaporation 2.02 kg m