NaFeTiO4: A novel visible light active photocatalyst for water splitting and environmental remediation |
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| Affiliation: | 1. Department of Chemistry, Shivaji University, Kolhapur, 416004, India;2. School of Science, Sanjay Ghodawat University, Atigre, Kolhapur 416 118, India;3. Centre for Materials for Electronics Technology (C-MET), Panchwati, Off Pashan Road, Pune 411008, India;4. Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea;5. Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea;1. Department of Chemistry, Shivaji University, Kolhapur 416004, MS, India;2. Catalysis Division, National Chemical Laboratory, Pune 411008, India;3. Center for Material Characterization, National Chemical Laboratory, Pune 411008, India;1. Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India;2. Department of Chemistry, Banasthali University, Tonk, Rajasthan 304022, IndiaFrom Next Line:;3. School of Science and Technology, Glocal University, Mirzapur, Saharanpur, 247121, Uttar Pradesh, India;4. Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;1. Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Av. Acueducto S/n, Col. La Laguna Ticomán, Ciudad de México, 07340, Mexico;2. Laboratorio Nacional de Desarrollo y Aseguramiento de la Calidad de Biocombustibles (LaNDACBio), Instituto Politécnico Nacional, Ciudad de México, 07340, Mexico;3. Conacyt-Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No 186, 09340, Ciudad de México, Mexico;1. Universidad Juárez Autónoma de Tabasco, División Académica Multidisciplinaria de Jalpa de Méndez, Carretera estatal libre Villahermosa-Comalcalco Km. 27+000 s/n, Ranchería Ribera Alta. C. P. 86205, Jalpa de Méndez, Tabasco, Mexico;2. Universidad Juárez Autónoma de Tabasco, División Académica de Ingeniería y Arquitectura, Carretera Cunduacán-Jalpa KM 1, Col. La Esmeralda. C. P. 86690, Cunduacán, Tabasco, Mexico;1. Sichuan Energy Internet Research Institute, Tsinghua University, Chengdu, Sichuan, 610000, China;2. International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, China |
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| Abstract: | Single phase, crystalline NaFeTiO4 with tunnel structure is prepared by a solid state method and explored as a novel photocatalyst for the first time. Structural, optical and morphological properties of NaFeTiO4 are investigated by various characterization techniques such as X-ray diffraction (XRD), scanning & transmission electron microscopy (SEM & TEM), Energy dispersive X-ray spectroscopy (EDS), N2 adsorption-desorption study (BET), UV-vis, X-ray photoelectron, X-ray absorption (UV-vis DRS, XPS and XANES) and photoluminescence (PL) spectroscopy. The interfacial charge transfer ability of the prepared n-type NaFeTiO4 was also investigated by transient photocurrent response and electrochemical impedence spectroscopy which proved to be an efficient tool for better understanding of electronic properties of NaFeTiO4. The photocatalytic efficiency of NaFeTiO4 is evaluated for decomposition of methylene blue (MB) and Rhodamine B (RhB) dyes as well as for H2 evolution through water splitting reaction under visible light. NaFeTiO4 exhibits efficient charge separation properties, excellent photocatalytic activities and reusability. |
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| Keywords: | Metal oxides Water splitting Photocatalysis |
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