▎ 摘　　要

NOVELTY - Self-dispersing graphene and iron co-doped nano titanium dioxide and preparation method comprises (i) injecting alcohols into the batching kettle through a metering pump, and turning on the stirring, (ii) pumping titanium salt into the batching kettle through the metering pump, and cooling (iii) introducing quantitative graphene and ferric chloride, stirring and reacting, (iv) transferring configuration reaction solution A to the reactor, heating, (v), releasing product in the reaction vessel into the cyclone separator by the bottom valve of the reaction vessel through the pressure generated by the reaction, realizing separation of gas and solid, receiving solid powder by the container at the bottom of the separator to obtain self-dispersed graphene and iron-doped nano titanium dioxide powder B, and the gas enters the exhaust gas treatment device, discharging after the treatment is qualified, and (vi) drying powder B in a vacuum dryer, removing volatile organic matter in powder B. USE - Self-dispersing graphene and iron co-doped nano titanium dioxide and preparation method ADVANTAGE - The method adopts a self-dispersed graphene and iron co-doped nano titanium dioxide with above structure and a preparation method, simple process, self-dispersed in deionized water, which overcomes problem of dispersion application. The system of graphene and iron co-doped, and overcomes problem of photo catalysis in low light and dark light conditions. DETAILED DESCRIPTION - Self-dispersing graphene and iron co-doped nano titanium dioxide and preparation method comprises (i) injecting alcohols into the batching kettle through a metering pump, and turning on the stirring, turning on the jacket cooling water to cool down, and controlling the temperature to less than 80degreesC, (ii) pumping titanium salt into the batching kettle through the metering pump, cooling down while stirring, mixing and reacting until the titanium salt and the alcohol, (iii) introducing quantitative graphene and ferric chloride, stirring and reacting for a period of time to obtain configuration reaction solution A, (iv) transferring configuration reaction solution A to the reactor, heating reaction kettle through the jacket of the reaction kettle, controlling temperature at 100-400degreesC, controlling reaction time within 8-48 hours, (v), releasing product in the reaction vessel into the cyclone separator by the bottom valve of the reaction vessel through the pressure generated by the reaction, realizing separation of gas and solid, receiving solid powder by the container at the bottom of the separator to obtain self-dispersed graphene and iron-doped nano titanium dioxide powder B, and the gas enters the exhaust gas treatment device, discharging after the treatment is qualified, and (vi) drying powder B in a vacuum dryer, removing volatile organic matter in powder B.