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Solar-powered desalination is considered to be a technology can resolve the shortage of fresh water resources effectively. However, most of the photothermal conversion materials used in this technology adopt a combined structure, and the material is difficult to realize the floating, which need to use oil-based foam as a carrier of the foundation. Therefore, using MXene (Ti3C2Tx) for light absorption material, biodegradable nanocellulose (CNF) and sodium alginate (SA) as skeleton materials prepared a kind of environmental and can realize the floating MXene/CNF/SA bilayer photothermal conversion material (M-CSA). The structure and properties of M-CSA bilayer photothermal conversion materials were studied. The results showed that when 0.30 wt. %MXene is added, the solar absorptivity of M-CSA bilayer photothermal conversion material could reach 95.87%, and the evaporation rate could reach 0.93 kg·m-2·h-1 under one sun illumination [ABSTRACT FROM AUTHOR]

Plant fibers based foam material is very promising in replacing the foam plastic. It is of great significance to study the stability of the foam and the structure of the foam material for the development of plant fibers based foam material. In this study, plant fiber was used as the raw material and dodecanol was used as foam stabilizer to obtain plant fibers based foam material, and the effect of content of dodecanol on wet foam stability and foam structure was studied. The results show that the regulation of foam stability can be achieved by regulating the content of dodecanol, and then the regulation of structure of plant fibers based foam can be realized. The stability of wet foam was better and the structure of the foam material was superior when the content of dodecanol was 3. 5%. [ABSTRACT FROM AUTHOR]