▎ 摘　　要

NOVELTY - Method of constructing a solar evaporator with graphene oxide, which involves: i. preparing a 9-12 milligrams per milliliter graphene oxide aqueous solution in a beaker and placing it in a sonicator for 1.5 hours or more to completely disperse it to obtain uniform graphene oxide solution; ii. immersing the sheet-like melamine sponge with length greater than or equal to width greater-than height into the graphene oxide solution prepared in step 1, making the melamine sponge adsorb the graphene oxide solution to saturation; iii. adding the melamine sponge for adsorbing saturated graphene oxide solution obtained in step 2 into a 60-100 degreesC oven to dry for 1 hour or more to obtain melamine sponge@graphene oxide sample; iv. adding 85-95 degreesC hydriodic acid in a beaker and use a constant temperature device to keep it at 85-95 degreesC, immersing melamine sponge@graphene oxide sample obtained in step 3 in hydriodic acid at 85-95 degreesC for 30-45 seconds to reduce. USE - Method of constructing a solar evaporator with graphene oxide ADVANTAGE - Method of constructing a solar evaporator with graphene oxide increases oxygen-containing groups and hydrogen atoms on the surface of melamine sponge@electrochemical redox graphene oxide, improves the hydrophilic capability and enables intermediate water to easily escape, greatly improving the evaporation capacity of water at a solar photo-thermal interface. DETAILED DESCRIPTION - Method of constructing a solar evaporator with graphene oxide, which involves: i. preparing a 9-12 milligrams per milliliter graphene oxide aqueous solution in a beaker and placing it in a sonicator for 1.5 hours or more to completely disperse it to obtain a uniform graphene oxide solution; ii. immersing the sheet-like melamine sponge with length greater than or equal to width greater-thanheight into the graphene oxide solution prepared in step 1, making the melamine sponge adsorb the graphene oxide solution to saturation; iii. adding the melamine sponge for adsorbing saturated graphene oxide solution obtained in step 2 into a 60-100 degreesC oven to dry for 1 hour or more to obtain melamine sponge@graphene oxide sample; iv. adding 85-95 degreesC hydriodic acid in a beaker and use a constant temperature device to keep it at 85-95 degreesC, immersing melamine sponge@graphene oxide sample obtained in step 3 in hydriodic acid at 85-95 degreesC for 30-45 seconds to reduce, then taking out the sample, turning it upside down, adding it in hydroiodic acid again to reducing it for 30-45 seconds, and then taking it out; v. adding the sample taken in step 4 into two splints with an area slightly larger than the sample area, slightly squeezing the splint evenly to squeeze the hydriodic acid solution out of the sample, using absolute ethanol, deionized water alternately rinses the extruded hydriodic acid sample 3 times or more, adding the rinsed samples in a 180-200 degreesC oven to dry for 1.5-2 hours. After drying at high temperature, a melamine sponge@reduced graphene oxide sample is obtained; and vi. adding melamine sponge@reduced graphene oxide sample obtained in step 5 into deionized water to adsorb saturated deionized water. Then apply 4.5-6.0 volt per centimeter voltage on its longest side for electrochemical oxidation, when the current drops to 0-2 milliampere. DESCRIPTION OF DRAWING(S) - The drawing shows a process flow diagram of the melamine sponge@electrochemical redox graphene oxide prepared. (Drawing includes non-English language text).