Mar'atul Fauziyah, Muhammad Zidan Alfath, Thirafi Bintang Ramadhan, Christina Wahyu Kartikowati, Diah Agustina Puspitasari, Supriyono Supriyono, Bambang Poerwadi, Lailatul Qomariyah, Osi Arutanti
Organic pollutant is one of the major constituents found in the water pollution, which can cause many severe diseases in a human body such as hepatic dysfunction, carcinogenic, endocrine system, etc. Many efforts have been developed in water treatment, such as adsorption, chemical degradation, chlorination, ozonation, biodegradation, and photodegradation. Photodegradation is the excellent way, it is not only removing the organic pollutant from the water by adsorption, but also degrading the adsorbed dye molecules into more simple chemicals which are friendly to the environment. In photodegradation, a semiconductor material is needed as a photocatalyst, such as graphitic carbon nitride (g-CN), to conduct a degradation under visible light irradiation. In this study, g-CN nanoparticle was prepared by heating urea under continuous stages of 550°C for 3 h and then 500°C for 1 h, followed by acid washing to eliminate impurities. The sample was then dried in an oven to obtain the g-CN nanoparticles. The g-CN nanoparticle was subsequently characterized by FTIR, SEM, and XRD. FTIR spectra showed that the triazine/s-triazine functional groups was existed which indicated the formation of g-CN. The photocatalytic activity was evaluated by degrading 4 ppm methyl orange dye pollutant under visible light irradiation for 180 min. The results showed that g-CN nanoparticle has an excellent photodegradation performance of 95.08%. © 2025 Author(s).
Department of Chemical Engineering, Faculty of Engineering, Universitas Brawijaya, Malang, 65145, Indonesia; Department of Industrial Chemical Engineering, Vocational Faculty, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia; Research Center for Advanced Chemistry, National Research and Innovation Agency, Tangerang Selatan, Banten, 15314, Indonesia
