DOI: https://doi.org/10.55373/mjchem.v27i3.242

Keywords: Photocatalyst; photocatalysis; graphitic carbon nitride; silver iodide; methylene blue

Abstract

Dye pollution from industrial wastewater poses a significant threat to aquatic ecosystems, necessitating efficient removal strategies. Photocatalysis, which employs material such as graphitic carbon nitride (g-C₃N₄), has emerged as a viable strategy for degrading organic compounds. In this study, visible light active, Ag/AgI/g-C₃N₄ composite photocatalysts were fabricated via in-situ co-precipitation method with different AgI percent weight loading. Detail characterization was performed utilizing a variety of approaches. The incorporation of Ag/AgI into the g-C₃N₄ extends the visible light absorption range, contributing to improved photocatalytic activity. The Ag/AgI/g-C₃N₄ composite outperformed the pristine g-C₃N₄ in terms of methylene blue degradation. The optimal photocatalytic activity was observed by 1AgI/g-C₃N₄ photocatalyst with 1% AgI loading, achieving 80% degradation in 5 hours due to the reduced electron-hole recombination and efficient charge transfer between g-C₃N₄ and Ag/AgI particles.