Mohseni Ahangar Ali, Hedayati Mohammad Ali, Maleki Mahdi, Ghanbari Hajar, Valanezhad Alireza, Watanabe Ikuya
School of Metallurgy and Materials Engineering, Iran University of Science and Technology Narmak Tehran 1684613114 Iran
Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University 1-7-1 Sakamoto Nagasaki 852-8588 Japan.
RSC Adv. 2023 Jan 11;13(3):2181-2189. doi: 10.1039/d2ra07810d. eCollection 2023 Jan 6.
Solar-driven interfacial evaporation has gained increasing attention as an emerging and sustainable technology for wastewater treatment and desalinization. The carbon/molybdenum disulfide (C/MoS) composite has attracted more attention due to its outstanding light absorption capability and optoelectronic properties as a solar steam generator. However, the hydrophobic nature of carbon and MoS-based materials hinders their wettability, which is crucial to the effective and facile operation of a solar generator of steam. Herein, a pH-controlled hydrothermal method was utilized to deposit a promising photothermal MoS coating on melamine-derived carbon foams (CFs). The hydrophilic CF/MoS composite, which can easily be floatable on the water surface, is a high-efficiency solar steam evaporator with a rapid increase in temperature under photon irradiation. Due to the localized heat confinement effect, the self-floating composite foam on the surface of water has the potential to produce a significant temperature differential. The porous structure effectively facilitates fast water vapor escape, leading to an impressively high evaporation efficiency of 94.5% under a light intensity of 1000 W m.
作为一种用于废水处理和海水淡化的新兴可持续技术，太阳能驱动的界面蒸发越来越受到关注。碳/二硫化钼（C/MoS）复合材料作为太阳能蒸汽发生器，因其出色的光吸收能力和光电性能而备受关注。然而，碳和基于MoS的材料的疏水性阻碍了它们的润湿性，而润湿性对于蒸汽太阳能发生器的有效且便捷运行至关重要。在此，采用pH控制的水热法在三聚氰胺衍生的碳泡沫（CFs）上沉积一种有前景的光热MoS涂层。亲水性CF/MoS复合材料能够轻松漂浮在水面上，是一种高效的太阳能蒸汽蒸发器，在光子照射下温度迅速升高。由于局部热限制效应，水表面的自漂浮复合泡沫有产生显著温差的潜力。多孔结构有效地促进了水蒸气的快速逸出，在1000 W m的光强下，蒸发效率高达94.5%，令人印象深刻。
