▎ 摘　　要

NOVELTY - Preparing photo-catalytic material involves pre-treating foam nickel in low concentration acid and deionized water, soaking and cleaning, drying to use as carrier, adding nitride powder and dispersing graphene and titanium oxide, mixing in the organic solvent, fully stirring after ultrasonic dispersion to obtain nitride dispersing solution, and heating to prepare graphene. The titanium oxide-nitride photo-catalytic material is loaded with foam nickel. The foam nickel obtained is soaked in nitride in the dispersing solution at constant temperature. USE - Method for preparing photo-catalytic material for degrading nitrogen oxide, indoor air purification field such as air conditioner, core component of fan filter core component of eco-friendly air purifier, and coatings (all claimed). ADVANTAGE - The method enables to prepare photo-catalytic material that has large ratio surface area, strong absorbing ability, visible light response, excellent nitrogen oxide degradation performance and wide application prospect, and in simple, eco-friendly and cost effective manner. DETAILED DESCRIPTION - Preparing photo-catalytic material involves pre-treating foam nickel in low concentration acid and deionized water, soaking and cleaning, drying to use as carrier, adding nitride powder and dispersing graphene and titanium oxide, mixing in the organic solvent, fully stirring after ultrasonic dispersion to obtain nitride dispersing solution, and heating to prepare graphene. The titanium oxide-nitride photo-catalytic material is loaded with foam nickel. The foam nickel obtained is soaked in nitride in the dispersing solution at constant temperature, and dried to obtain photo-catalytic material of graphene and titanium oxide-nitride load foam nickel. An INDEPENDENT CLAIM is included for a method for degrading nitrogen oxide, which involves adding photo-catalytic material of the graphene and titanium oxide-nitride foam nickel load in the photo-catalysis reactor; subjecting gas containing the pollutant nitrous oxide air into the reaction system, where reaction system nitrous oxide concentration range is 450-650 parts per billion, absorbing, opening the light source, visible light irradiation, and irradiating photo-catalytic activity of nitrogen evaluation material.