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All Journal Jurnal Sains & Teknologi Lingkungan Jurnal Purifikasi Envirotek : Jurnal Ilmiah Teknik Lingkungan Rona Teknik Pertanian Journal Serambi Engineering (JSE)
Ervin Nurhayati
Institut Teknologi Sepuluh Maret
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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DOXYCYCLINE PHOTOCATALYTIC DEGRADATION USING MESOPOROUS CARBON NITRIDE (MCN) UNDER VISIBLE LIGHT Azzahra Hanggararas Sasdika; Ervin Nurhayati; Isni Arliyani; Muchammad Tamyiz; Adhi Yuniarto; Yu Syuan Liou; Checia Hu
Purifikasi Vol 25 No 1 (2026): Journal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i1.541

Abstract

Antibiotic contamination in aquatic environments has become a global concern due to its potential contribution to antimicrobial resistance and adverse impacts on aquatic ecosystems. Photocatalysis using carbon nitride-based semiconductor materials has emerged as a promising approach for the removal of antibiotic pollutants. This study aimed to evaluate the performance of Mesoporous Carbon Nitride (MCN) for the degradation of DOX under visible-light irradiation at initial concentrations of 0.5, 5, 20, and 50 mg/L. Photocatalytic experiments were conducted in a laboratory-scale reactor equipped with a magnetic stirrer to maintain solution homogeneity. DOX concentration was determined using UV–Vis spectrophotometry, while ammonia (NH₃-N) analyses were performed to investigate compound transformation during the degradation process. The results demonstrated that both irradiation time and initial DOX concentration significantly influenced the degradation performance. The highest degradation efficiency was achieved at an initial concentration of 50 mg/L, reaching 36.51% after 150 min of visible-light irradiation, whereas the degradation efficiency at 20 mg/L was 12.29%. Degradation rate analysis revealed maximum values of 0.103 mg L⁻¹ min⁻¹ and 0.514 mg min⁻¹ g⁻¹ at 50 mg/L. Changes in ammonia concentration indicated that the photocatalytic process not only promoted DOX degradation but also facilitated the transformation of nitrogen-containing compounds during the reaction. Meanwhile, the apparent negative degradation efficiencies observed at 0.5 and 5 mg/L were attributed to analytical limitations associated with UV–Vis measurements at low concentrations. These findings demonstrate the potential of MCN as a visible-light-responsive photocatalyst for the treatment of antibiotic-contaminated wastewater.
Co-Authors Adhi Yuniarto Agus Ahyar Agus Slamet Andriyan Yulikasari Aris Bastian Lahay Azzahra Hanggararas Sasdika Bieby Voijant Tangahu Checia Hu Dades Prinandes Dewi Puji Rahayu Eddy Setiadi Soedjono Faiz Arif Harahap Ghina Rizqina Ersa Harmin Sulistiyaning Titah I Putu Sudastra Adi Saputra Isni Arliyani Lia Amaliah Luthfianto, Ahmad Kuslan Muchammad Tamyiz Muhamad Nur Ibnu Luthfi Saud Muhammad Sundoro Natasya Febriani Fauziah Yu Syuan Liou