Pharmaceutical residues in aquatic environments have the potential to induce bacterial resistance. subsequently complicating disease treatment and posing a substantial hazard to public health. This study demonstrates the production of carbon dots from Cassia fistula flowers using a hydrothermal process. The obtained carbon dots were then mixed with zinc oxide to create CDs@ZnO-H400. https://safeersappliancers.shop/product-category/siemens-lc87kbm60b-iq-300-built-in-79cm-3-speeds-b-chimney-cooker-hood-black/