Porous Hematite Photocatalytic Structures on Freestanding CuO-Sb2O5-SnO2 Ceramics for Solar-Driven Water Splitting and Flow-Through Water Purification

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2024-11-20 DOI:10.1007/s11664-024-11603-x

Iván Corrales-Mendoza, Alexander N. Bondarchuk, Josué A. Aguilar-Martínez, Frank Marken, Rene F. Cienfuegos-Pelaes, Raúl Salas Coronado, Carlos A. Martínez-González

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引用次数: 0

Abstract

High porosity and large photoactive surface of photoelectrodes grown on nano-grained and conductive ceramics provide freestanding structures for applications in photoelectrolysis and flow-through water purification. This study presents unmodified hematite photoelectrodes grown on CuO-Sb₂O₅-SnO₂ ceramics, exhibiting photocurrent density of 0.63 mA cm⁻² at 1.23 V versus a reversible hydrogen electrode (RHE) under AM1.5G radiation. The obtained photoelectrodes are tested for cleaning seawater contaminated with methylene blue. The photocatalytic structures are examined by photoelectrochemical measurements, x-ray diffraction, scanning electron microscopy, energy-dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, ultraviolet–visible spectroscopy, and Raman spectroscopy. The influence of substrate temperature on photocurrents obtained with these photoelectrodes is studied and discussed.

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.