武汉工程大学学报2024，Vol.46Issue(5)：510-515,6.DOI:10.19843/j.cnki.CN42-1779/TQ.202307019
MoS2/PVA光热海绵的制备及其水蒸发性能
Preparation of MoS2/PVA photothermal sponge and its water evaporation performance
摘要
Abstract
Solar-driven interfacial evaporation is one of the most promising technologies for seawater desalination and waste water treatment.Low cost,simple preparation,and high photothermal conversion efficiency of solar photothermal materials are crucial factors for the successful large-scale application of this technology.In this work,water was used as the solvent,polyvinyl alcohol(PVA)as the matrix,and molybdenum disulfide(MoS2)as the photothermal material to prepare polyvinyl alcohol sponge loaded with molybdenum disulfide(MoS2/PVA)through a one-pot method.The structure and properties of the sponges were characterized by using scanning electron microscope and energy dispersive X-ray spectrometer,Fourier transform infrared spectrometer,X-ray diffraction,contact angle analyzer and water evaporation tester.Experimental results confirmed the successful loading of MoS2 into the PVA sponge matrix.The influence of MoS2 content on the light absorption performance,photothermal performance,and solar-driven interfacial water evaporation performance of MoS2/PVA sponge were studied.Results show that at a MoS2 mass fraction of 7.5%,the prepared MoS2/PVA sponge exhibited the highest water evaporation rate under a 1 kW/m2 solar intensity,reaching an evaporation rate of 1.37 kg/(m2·h),approximately 4.42 times higher than the pure water evaporation rate of 0.31 kg/(m2·h),and the pure water evaporation efficiency of the MoS2/PVA sponge reached 93.1%.关键词
二硫化钼/聚乙烯醇海绵/光热转换/界面蒸发/水蒸发效率Key words
molybdenum disulfide/polyvinyl alcohol sponge/photothermal conversion/interfacial evaporation/water evaporation efficiency分类
化学化工引用本文复制引用
刘媛媛,薛开诚,张云飞,付萍,杜飞鹏,张桥..MoS2/PVA光热海绵的制备及其水蒸发性能[J].武汉工程大学学报,2024,46(5):510-515,6.基金项目
国家自然科学基金(51803157) （51803157）
