MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202641073399 A) filed by Chettinad Academy Of Research And Education on June 12, 2026, for Photocatalytic Zno/Pva/Low Molecular Weight Chitosan Composite Membrane For Dye Degradation.
Inventors include Saravanan Ramachandran; Aishwarya Senthil; and Pavithra Aj.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: The present invention relates to a photocatalytic composite membrane (100) comprising zinc oxide nanoparticles (102) incorporated within a polyvinyl alcohol and low molecular weight chitosan biopolymer matrix (104) for degradation of synthetic dyes in aqueous media. The polyvinyl alcohol (106) provides film-forming strength and flexibility, while the low molecular weight chitosan (108) chemically anchors the zinc oxide nanoparticles (102) through nitrogen-to-zinc coordination bonds (110). The membrane (100) is fabricated by solution casting to obtain a self-supporting and reusable membrane having a thickness of about 0.20 mm. The membrane (100) exhibits photocatalytic activity under ultraviolet irradiation and degrades both cationic and anionic dyes. The membrane (100) achieves about 70% degradation of Methylene Blue and about 52% degradation of Methyl Orange under UV irradiation, thereby providing a recoverable photocatalytic system for wastewater treatment. Figure 1 will be the reference.
Disclaimer: Curated by HT Syndication.
