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Journal : International Journal of Renewable Energy Development

Development of WO3/TiO2-NT/Ti photoanode for simultaneously POME degradation, electricity generation, and hydrogen production in a photocatalysis-fuel cell system Bachri, M. Febriansyah; Husein, Saddam; Susanto, Bambang Heru; Ratnawati, Ratnawati; Slamet, Slamet
International Journal of Renewable Energy Development Vol 14, No 3 (2025): May 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60978

Abstract

This research presents a WO₃/TiO₂-NT/Ti photoanode for processing POME waste as well as producing electricity and hydrogen simultaneously. The photoanode in the form of nanocomposites was synthesized using an in-situ anodization method and characterized using Field Emission Scanning Electron Microscopy with Energy Dispersive X-ray (FESEM-EDX), X-ray Diffraction (XRD), Photoluminescence Spectroscopy (PL-Spectra), photocurrent transient, X-ray Photoelectron Spectroscopy (XPS), and UV-Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS). The results showed that the WO₃/TiO₂-NT/Ti photoanode with 0.3 g of WO₃ precursor added during anodization exhibited the best PFC performance. The system achieved a COD degradation of 84%, hydrogen production of 11.18 mmol/m², and a maximum power density of 0.0375 mW/cm² under visible light irradiation, outperforming the variations with 0.5 g and 0.78 g WO₃ precursor. The enhanced performance was attributed to the formation of a heterojunction between WO₃ and TiO₂, as confirmed by characterization results and performance tests in COD degradation, electricity generation, and hydrogen production. Meanwhile, the addition of 0.5 g and 0.78 g WO₃ precursor reduced photocatalytic performance, likely due to excessive Na₂WO₄·2H₂O during anodization, which could partially cover the active TiO₂-NT/Ti surface and alter the electrochemical oxidation process. The developed WO₃/TiO₂-NT/Ti photoanode offers a promising solution for simultaneous wastewater treatment, clean hydrogen production, and electricity generation, with potential applications in sustainable palm oil processing industries and future renewable energy technologies.
Co-Authors A. Simbolon, Yessika Abror, Rifki Affan Silalahi, Ali Aini Khairunnisa, Nur Amanda Rahayu, Nurul ASWAN PANGONDIAN Athaillah Athaillah, Athaillah Aziz, Pratiwi Bachri, M. Febriansyah Baktiar, Baktiar Bambang Heru Susanto, Bambang Heru Chandra, Putra Chatarina Umbul Wahyuni Chindy Umaya Darwis, Mardis Desy Kurniawati dhani, Ramdhani Nur Saputra Edi Nasra Elanda, Yurike Elisa Elisa Elsiana, Elsiana emelda, emelda Eryani, Kurnia FAHARUDIN, FAHARUDIN Fatma Suryani Harahap Fuadah, Nurul Izmi Fuady Dharma Harahap, Andes Fuady Dharma, Andes Gani, Fadly Arirja Halawa, Fiska Handayani, Rut Harahap, Armansyah Maulana harahap, Yunus Harmain, La Ode Muhammad Hasrianto, Hasrianto Hendratno, Indra Henny Nuraeny Heriyanto, Abdul Roni Ibrahim Ibrahim Indrayani Dalimunnthe, Gabena Iskandar, Andi Cempana Sari Jeningsih Jumaeda, St. Khairiyyah, Fitriani Hasna Khairunnisa, Nur Aini Lestari, Yovita Endah Lubis, Darwis Maryam, Euis Ma’arif, Rizal Syamsul Monaya, Nova Muhaimin, La Ode Mujibullah, Mujibullah MULYADI Nugroho, Dian Prasetyo Nur Aini Khairunnisa Nur, Ariza Wahdania Nurkhalika, Rachmi Nurmaini Ginting Pradani, Aulia Farah Pratiwi, Dinda Ayu PS, Nurunnisa Purnamasari, Amrina Puspitahati - Qolyubi, Asep Thobibuddin Raivel, Raivel Rambe, Robiatun Ratnawati Ratnawati Rizky, Erika Rumatiga, Hidayat Saddam Husein Sari, Trisna Kumala Septian Budiman Septiawan, Azizah Nada Setiabudhi, Indrasurya Shafirah, Farah Dyah Siti Alida, Riska Sonhaji, Anas Sri Benti Etika Suaib, Sujarwadi Sudiami, Sudiami Sukri, Zulhan Syabanti, Siti Sylvia Br. Ginting, Ovalina Ulfah Ulfah Waarsyat, Fadli Wibawa, Muhammad Bayu Yumarni, Ani Zai, Ayu Zakaria, Aisyah Zulfadilah, Ahmad Zulfardi, Zulfardi