NOVELTY - A photo-cured nano-doped loaded self-cleaning coating is prepared by dispersing gamma -aluminum oxide ( gamma -Al2O3) particle in deionized water, adding butyl titanate with water and absolute ethanol under vigorous stirring, hydrolyzing, filtering, drying at 70 degrees C for 2 hours, calcining in muffle furnace at 450 degrees C for 2 hours to obtain titanium oxide- gamma -aluminum oxide (TiO2- gamma -Al2O3), placing isophorone diisocyanate (IPDI), polypropylene glycol 400 (PPG400), and di-n-butyltin dilaurate (DBTL) catalyst in 3-necked flask equipped with stirrer and thermometer using dropping funnel, and stirring.    USE - A photo-cured nano-doped loaded self-cleaning coating for glass and solar panel surface.    ADVANTAGE - Self-cleaning glass has high scratch resistance, weather fastness, thermal stability, good wear resistance, fog-proof, and antibacterial function. Titanium oxide- gamma -aluminum oxide has larger specific surface area than other nanoaluminum oxide.    DETAILED DESCRIPTION - A photo-cured nano-doped loaded self-cleaning coating is prepared by dispersing gamma -aluminum oxide ( gamma -Al2O3) particle in deionized water, adding butyl titanate with water and absolute ethanol under vigorous stirring, hydrolyzing, filtering, drying at 70 degrees C for 2 hours, calcining in muffle furnace at 450 degrees C for 2 hours to obtain titanium oxide- gamma -aluminum oxide (TiO2- gamma -Al2O3), placing isophorone diisocyanate (IPDI), polypropylene glycol 400 (PPG400), and di-n-butyltin dilaurate (DBTL) catalyst in 3-necked flask equipped with stirrer and thermometer using dropping funnel, stirring, dropping, raising temperature to 40 degrees C for 2 hours, adding dimethylolpropionic acid (DMPA), raising temperature to 60 degrees C for 2 hours, adding hydroxyethyl acrylate (HEA), raising temperature to 70 degrees C for 4 hours in which each step is reacted to di-n-butyl amine until reached theoretical value of IPDI:PPG400:DMPA:HEA is 2:1:0.5:1 to carry out next reaction which are monitored in numerically controlled oscillator (NCO) system, recording obtained photo-cured aqueous polyurethane acrylic ester pre-polymer as (A), placing quantitative pre-polymer (A) in 4-necked flask in which molar ratio of pre-polymer content and carboxyl groups is 1:1, adding triethylamine into dropping funnel at drop rate of 2-3 s/drop and temperature of 50 degrees C for half an hour, removing flask from oil bath pan, cooling to room temperature to obtain photo-cured aqueous polyurethane acrylic ester emulsion which is recorded as B, placing (B) into 3-necked flask, placing mixed ratio of TiO2- gamma -Al2O3 and deionized water into dropping funnel at drop rate of 2 s/drop under vigorous stirring, reacting for half an hour, and making solid content of 15% at normal temperature.