Rathnayake, R. M. T. DWeerasiri,K. C2026-09-282026-09-282026-05-02ISSN 1012 - 8999https://dr.ichemc.ac.lk/handle/123456789/535Abstract No: 2025_396 Page No 73Zinc Oxide (ZnO) nanoparticles (NPs) are widely utilized semiconductor photocatalysts due to its ecofriendly nature and cost effectiveness in degrading environmental pollutants. In this study, plant extractbased synthesis of ZnO NPs was achieved using Dillenia triquetra leaf extract, where natural phytochemicals acted as reducing and capping agents.enZinc oxidegreen synthesisDillenia triquetra leaf extractphotocatalytic activityArticle