Intellectual Property India Publishes Patent Application for Self-Cleaning Photocatalytic Surface Coating For Air Purification And Environmental Remediation

MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202641106899 A) filed by Dr. M. Kumaresan; Dr. K. Ramachandran; Mr. C. Krishna Moorthy; Mr. K. Alagarraja; Dr. Kanchanadevi Sivaswamy; Mrs. O. A. Sridevi; Dr. A. Geetha; Mr. V. Rajasubramanian; Dr. T. Anupriyanka; and Dr. E. Dhanasekaran on September 04, 2026, for Self-Cleaning Photocatalytic Surface Coating For Air Purification And Environmental Remediation.

Inventors include Dr. M. Kumaresan; Dr. K. Ramachandran; Mr. C. Krishna Moorthy; Mr. K. Alagarraja; Dr. Kanchanadevi Sivaswamy; Mrs. O. A. Sridevi; Dr. A. Geetha; Mr. V. Rajasubramanian; Dr. T. Anupriyanka; and Dr. E. Dhanasekaran.

The application for the patent was published on September 11, 2026, under issue no. 37/2026.

Abstract: A self-cleaning photocatalytic surface coating for air purification and environmental remediation is disclosed. The coating comprises a semiconductor photocatalyst, preferably titanium dioxide in anatase or anatase-rutile form modified by doping, semiconductor coupling, sensitization, or a co-catalyst to be active under visible light as well as ultraviolet, and a binder, preferably an inorganic silica, silicate, or siloxane binder, that binds the photocatalyst durably to a substrate while resisting the reactive species the photocatalyst generates and exposing the photocatalyst at the coating surface, thereby resolving the conflict between durable binding and retained activity. Upon illumination, the photocatalyst generates reactive oxygen species that decompose contaminants in the adjacent air, including volatile organic compounds, nitrogen oxides, malodours, and microorganisms, and decompose organic soiling on the surface, while a superhydrophilic or superhydrophobic wettability washes or sheds soiling, so the surface both purifies the air and cleans itself. Adherent to glass, ceramic, metal, concrete, and polymer and applied by spraying, dipping, or brushing, the coating provides passive, continuous, sustainable air purification and self-cleaning using only ambient light.

Disclaimer: Curated by HT Syndication.