文献类型：期刊文献

英文题名：Research on the Photothermal Conversion and Water Collection Performance of MOF-303 Composites for Solar-Driven Air Water Harvesting

作者：An, Zhoujian Wu, Shangru Du, Xiaoze Ding, Yong Zhang, Dong Fu, Jian Liu, Xiaomin

第一作者：An, Zhoujian

通信作者：An, ZJ[1];Du, XZ[1];An, ZJ[2];Du, XZ[2];An, ZJ[3]

机构：[1]Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China;[2]Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550025, Peoples R China;[3]Shouhang High Tech Energy Technol Co Ltd, Jiuquan 735000, Peoples R China;[4]Gansu Nat Energy Res Inst, Lanzhou 730046, Peoples R China

第一机构：Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China

通信机构：corresponding author), Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550025, Peoples R China;corresponding author), Shouhang High Tech Energy Technol Co Ltd, Jiuquan 735000, Peoples R China.|贵州理工学院;

年份：2026

外文期刊名：LANGMUIR

收录：;EI(收录号：20261720582427);Scopus(收录号：2-s2.0-105036329182);WOS:【SCI-EXPANDED(收录号:WOS:001735533800001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (52206087, 52130607), the Guizhou Provincial Major Scientific and Technological Program (XKBF(2025)031), the Guizhou Science and Technology Innovation Leading Talent Workstation (KXJZ(2025)024), the China Postdoctoral Science Foundation (2025M770576), the Youth Doctor Foundation Project of Gansu Provincial Education Department (2025QB-027), the Key R&D Program of Gansu Province (23YFGA0035), the Guizhou Provincial Basic Research Program (Natural Science) (ZD[2026]076), the Wuwei City Major Science and Technology Special Projects (WW25A03ZDQ002), the Doctoral Research Funds of Lanzhou University of Technology (061907), the Red Willow Excellent Youth Project of Lanzhou University of Technology, and the Young Faculty Interdisciplinary Research Cultivation Program of Lanzhou University of Technology.

语种：英文

摘要：Atmospheric water harvesting is a promising solution to freshwater shortage because it is not limited by location. Metal-organic frameworks (MOFs) have attracted much attention for low-humidity applications due to their large surface areas and strong water adsorption capacities. In this study, the desorption efficiency of MOF-based adsorbents under solar heating was improved by adding efficient photothermal materials. MOF-303 was combined with Fe3O4, MWCNTs, and Ti3C2 by ball milling. Characterization analysis of the composite materials' morphology, elemental distribution, crystal structure, and functional group changes demonstrated that the composite formation was successful. The results showed that compared to the original MOF-303, adding 10 wt % photothermal material greatly improved light absorption, leading to faster solar heating and quicker water desorption. However, the introduction of photothermal materials leads to a reduction in the effective adsorption sites within the composite materials, resulting in lower saturated water absorption capacities for all three composites compared to the original MOF-303. Among the three composite materials, Ti3C2/MOF-303 shows the best overall performance. Under 40% RH conditions, the material increased water vapor adsorption from 0 g/g to 0.382 g/g within 30 min. After 20 min of irradiation at 1 sun, the surface temperature of the material rapidly rose to 87.4 degrees C, reducing the remaining water content to 11.3%. Under the same conditions, the original MOF-303 had a water vapor adsorption of 0.42 g/g, a surface temperature of 59.8 degrees C after irradiation, and a remaining water content of about 31.7%. Taking 30% RH as an example, the Ti3C2/MOF-303 water vapor adsorption capacity is about 8.1% lower than that of the original MOF-303. During desorption at 85 degrees C, it takes approximately 20 min to achieve complete desorption, which is 20% shorter than that of the original MOF-303.