MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202641063486 A) filed by Vellore Institute Of Technology, Vellore, Tamil Nadu, on May 19, for 'a bismuth carbide-based buoyant photocatalyst composition and method for preparation thereof.'
Inventor(s) include Sathishkumar Panneerselvam; Ashina Chandran; and Kannadasan Sathananthan.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a buoyant bismuth carbide-based photocatalyst composition and a method for its preparation are disclosed. The composition comprises a foam-derived carbon support impregnated with or supporting in-situ formed bismuth carbide, wherein the photocatalyst exhibits hydrophobicity, buoyancy in aqueous media, and facile recovery by flotation. The composition is synthesized via ultrasonic-assisted conversion of a precursor solution containing bismuth oxyhalide, ethanol, and nitric acid, under irradiation at about 40 kHz, enabling simultaneous impregnation and transformation of polymeric foam carbon into metallic carbon with concurrent formation of bismuth carbide. The bismuth oxyhalide may include BiOBr or mixed halides such as BiOClBr. The preparation method involves pre-treatment of the foam support through alkaline etching, followed by sonication-assisted incorporation of the precursor and subsequent drying to yield the photocatalyst. The resulting material is suitable for photocatalytic degradation of aqueous pollutants, including nitrofurantoin at concentrations up to about 100 mg/L, offering enhanced recovery and reusability."
Disclaimer: Curated by HT Syndication.
