AUTHOR=Saif Aroosha , Rizvi Syeda Itrat , Shaukat Zarneen , Saif Mamoona , Tabassum Sobia , Khalid Rizwan , Javed Fahad , Rebouh Nazih Y. , Hassan Faiza , Zaman Qamar uz TITLE=Development of composite catalyst containing renewable biochar blended with zinc oxide and copper diphenyl amine for visible light photocatalytic degradation of methylene blue JOURNAL=Frontiers in Sustainable Food Systems VOLUME=9 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2025.1500907 DOI=10.3389/fsufs.2025.1500907 ISSN=2571-581X