SOLAR SEAWATER DESALINATION OR SEWAGE TREATMENT METHOD BASED ON CARBON NANOTUBE FILM

摘要

A solar seawater desalination or sewage treatment method based on a carbon nanotube film. The method comprises placing a hydrophilic carbon nanotube film on the surface of water to be treated, to absorb sunlight, carrying out photothermal conversion to heat the water body to cause rapid evaporation of the water, and condensing the steam to give purified water, wherein the hydrophilic carbon nanotube film has an oxygen-containing functional group at ends of carbon tubes. Further disclosed are a seawater desalination or sewage treatment apparatus, a hydrophilic carbon nanotube film, and a method for preparing the hydrophilic carbon nanotube film.