MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202611089855 A) filed by Indian Institute Of Information Technology Allahabad on July 23, 2026, for Method For Synthesizing Potato Peel-Derived Fe–n Co-Doped Luminescent Carbon Dots For Pollutant Degradation.
Inventors include Amaresh Kumar Sahoo; Sangeeta Yadav; Ankita Chaudhary; Siddharth Kumar Thakur; Fiza Fatima; and Sintu Kumar Samanta.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: The present disclosure relates to a method for synthesizing iron- and nitrogen-co-doped luminescent carbon dots from potato peel biomass for the degradation of organic pollutants in aqueous media. The method comprises providing waste potato peel biomass as a carbon precursor, combining the biomass with urea as a nitrogen source and ferrous chloride as an iron source in an aqueous medium to obtain a reaction mixture, and subjecting the reaction mixture to hydrothermal treatment in a sealed vessel. The hydrothermal treatment converts the biomass into carbonaceous nanoscale dots and incorporates iron and nitrogen dopants therein. The hydrothermal product is cooled and purified to isolate Fe–N co-doped luminescent carbon dots. In use, the carbon dots contact pollutant-containing aqueous media in the presence of hydrogen peroxide and exhibit Fenton-like catalytic activity to generate reactive oxygen species, including hydroxyl radicals, for degrading industrial dyes and pesticide residues in wastewater for sustainable water treatment applications.
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