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

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

doi:10.1007/s11664-024-11603-x

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

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

Technological University of the Mixteca
Centro de Investigación e Innovación en Ingeniería Aeronáutica
Investigación y Desarrollo en Ingeniería y Tecnología (CIIDIT) Parque PIIT

Research output: Contribution to journal › Article › peer-review

2 Citations (SciVal)

132 Downloads (Pure)

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.

Original language	English
Pages (from-to)	556-567
Number of pages	12
Journal	Journal of Electronic Materials
Volume	54
Issue number	1
Early online date	20 Nov 2024
DOIs	https://doi.org/10.1007/s11664-024-11603-x
Publication status	Published - 31 Jan 2025

Acknowledgements

A.N.B. thanks the National Science and Technology Council of Mexico (CONACYT) for the support of this study (Grant #A1-S-20353).

Funding

Funders	Funder number
Consejo Nacional de Humanidades, Ciencias y Tecnologías	#A1-S-20353
Consejo Nacional de Humanidades, Ciencias y Tecnologías

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hematite
photoanode
photocatalysis
solar energy
tin-dioxide ceramics
water splitting

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1007/s11664-024-11603-x

Author accepted manuscriptAccepted author manuscript, 1.13 MB

Cite this

Corrales-Mendoza, I., Bondarchuk, A. N., Aguilar-Martínez, J. A., Marken, F., Cienfuegos-Pelaes, R. F., Coronado, R. S., & Martínez-González, C. A. (2025). Porous Hematite Photocatalytic Structures on Freestanding CuO-Sb₂O₅-SnO₂ Ceramics for Solar-Driven Water Splitting and Flow-Through Water Purification. Journal of Electronic Materials, 54(1), 556-567. https://doi.org/10.1007/s11664-024-11603-x

Porous Hematite Photocatalytic Structures on Freestanding CuO-Sb₂O₅-SnO₂ Ceramics for Solar-Driven Water Splitting and Flow-Through Water Purification. / Corrales-Mendoza, Iván; Bondarchuk, Alexander N.; Aguilar-Martínez, Josué A. et al.
In: Journal of Electronic Materials, Vol. 54, No. 1, 31.01.2025, p. 556-567.

Research output: Contribution to journal › Article › peer-review

Corrales-Mendoza, I, Bondarchuk, AN, Aguilar-Martínez, JA, Marken, F, Cienfuegos-Pelaes, RF, Coronado, RS & Martínez-González, CA 2025, 'Porous Hematite Photocatalytic Structures on Freestanding CuO-Sb₂O₅-SnO₂ Ceramics for Solar-Driven Water Splitting and Flow-Through Water Purification', Journal of Electronic Materials, vol. 54, no. 1, pp. 556-567. https://doi.org/10.1007/s11664-024-11603-x

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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{\textendash}visible spectroscopy, and Raman spectroscopy. The influence of substrate temperature on photocurrents obtained with these photoelectrodes is studied and discussed.",

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