▎ 摘　　要

NOVELTY - Composite evaporation rod based on the principle of interfacial evaporation, comprises inner water supply layer (2) and an outer light-to-heat conversion layer (1), the light-to-heat conversion layer wraps the water supply layer. The light-to-heat conversion layer absorbs the heat in the air to form a local hot zone, so as to achieve the purpose of evaporating the water source (3). The water supply layer has a function of absorbing water and supplying water to the composite hydrogel. USE - Composite evaporation rod based on the principle of interfacial evaporation used for water treatment (Claimed). ADVANTAGE - Evaporation flux of the composite evaporation rod is far higher than that of the conventional evaporation material in the unit occupied area, and the composite evaporation rod has the advantages of high-efficiency evaporation, low cost and sustainability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for water treatment method based on the composite evaporation rod of interface evaporation, which involves: i. bottom water supply type evaporation rod adopts a plug-in design, the plug-in type composite evaporation rod is inserted into the water source to be treated, immersing the bottom in water, and supplying the water is continuously to the light-to-heat conversion layer under capillary action; and top water supply type evaporation rod adds a water storage container with a cover on the top of the evaporation rod, and the water source to be treated is loaded into the water storage container, so that it reaches the light-to-heat conversion device under the action of capillary action and gravity water supply. DESCRIPTION OF DRAWING(S) - The drawing shows an evaporation rod model diagram, where a is the bottom water supply and b is the top water supply. Light-to-heat conversion layer (1) Water supply layer (2) Water source (3) Water storage container (4)