System and method for solar-driven photothermal seawater desalination and ion electroosmosis power generation

A system for solar-driven photothermal seawater desalination and ion electroosmosis power generation, comprising:

• a plurality of reservoirs including at least,
• a first reservoir internally provided with a first electrode immersed in seawater,
• a second reservoir connected to the first reservoir via a cation selective nanofilm, wherein the cation selective nanofilm is provided with a first light-transmitting sealing layer, and
• a third reservoir internally provided with a second electrode immersed in seawater, wherein the third reservoir is connected to the second reservoir via an anion selective nanofilm, the anion selective nanofilm is provided with a second light-transmitting sealing layer, and the first electrode and the second electrode are connected through a signal collector that collects current signals;
• and
• an adjustable sun-visor for shielding the cation selective nanofilm to form a first preset part of solar illumination and shielding the anion selective nanofilm to form a second preset part of the solar illumination, wherein the cation selective nanofilm and the anion selective nanofilm are each under an asymmetric illumination to generate a temperature gradient.