Zhang Hongping, Wang Yan, Liu Yongguang, Zhao Mingming, Liu Congyan, Wang Yang, Albolkany Mohamed K, Wu Niannian, Wang Min, Yang Luyun, Liu Bo
Hefei National Laboratory for Physical Sciences at the Microscale, Fujian Institute of Innovation of Chinese Academy of Sciences, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P.R. China.
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
ChemSusChem. 2020 Jun 8;13(11):2945-2951. doi: 10.1002/cssc.202000356. Epub 2020 May 4.
Efficient utilization of solar energy for water evaporation is an advanced and environmentally friendly technology to address the crisis of global drinking water shortages. This study concerns an efficient solar vapor generator comprised of a light-absorbing and photothermal hybrid compound [Ni(Phen) ][V O Cl]Cl (NiV ) confined in mesoporous and hydrophilic glass (meso-glass). The generator is floated in water by supporting it on a domestic melamine-formaldehyde (MF) foam to ensure evaporation at the water-air interface. The porous structures and poor thermal conductivities of the meso-glass and MF foam contribute to enabling a consistent water supply, strong solar thermal localization, and less heat dissipation and convection. Associated with the strong photothermal role of NiV , these synergistic effects lead to a water evaporation rate of 14.38 kg m h with total water evaporation efficiency of 111.4% under 6 suns and a daily solar water purification yield of 42.00 L m under 1 sun irradiation. This solar evaporation system shows great promise for high-efficiency water purification application.
高效利用太阳能进行水蒸发是一种先进且环保的技术，可应对全球饮用水短缺危机。本研究涉及一种高效太阳能蒸汽发生器，它由一种光吸收与光热混合化合物[Ni(Phen) ][V O Cl]Cl（NiV ）封装在介孔亲水性玻璃（介孔玻璃）中构成。该发生器通过支撑在家用三聚氰胺 - 甲醛（MF）泡沫上漂浮于水中，以确保在水 - 气界面处蒸发。介孔玻璃和MF泡沫的多孔结构以及低导热率有助于实现持续的水供应、强大的太阳能热局部化以及较少的热散失和对流。与NiV 的强光热作用相关联，这些协同效应导致在6个太阳辐射强度下，水蒸发速率为14.38 kg m h ，总水蒸发效率为111.4%；在1个太阳辐射强度下，每日太阳能水净化产量为42.00 L m 。这种太阳能蒸发系统在高效水净化应用方面显示出巨大潜力。
