Water-soluble photosensitive composition of photodynamic environmental disinfection and method of environmental disinfection by using the same

A method of an environmental disinfection with a water-soluble photosensitive composition, comprising:

• performing an atomization step on a water-soluble photosensitive composition to obtain atomized particles in space at a rate of 0.1 mL to 150 mL per minute for 1 second to 300 seconds, wherein the water-soluble photosensitive composition is consisting of methylene blue of greater than 0 mM and equal to or less than 50 mM, hydrogen peroxide of greater than 0 wt % to 1 wt % and a balanced amount of water;
• performing a light irradiation step using white light of 0.01 J/cm2 to 300 J/cm2 on the atomized particles to obtain photoactivated atomized particles;
• and
• applying the photoactivated atomized particles to a surface of an object and/or air of space, wherein compared to the surface of the object and/or the air of the space where the photoactivated atomized particles are not applied, pathogenicity and/or infectivity of viruses on the surface of the object and/or in the air of the space where the photoactivated atomized particles are applied is reduced by at least 99.99%.