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Converting Sewage Water into H2 Fuel Gas Using Cu/CuO Nanoporous Photocatalytic Electrodes

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Physics Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
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Basic Sciences Research Unit, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
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Nanoscale Science, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
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Department of Physics, Faculty of Science, Islamic University of Madinah, Prince Naifbin Abdulaziz, Al Jamiah, Madinah 42351, Saudi Arabia
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Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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School of Photovoltaics and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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Electrical Engineering Department, College of Engineering and Petroleum, Kuwait University, Safat 13113, Kuwait
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Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
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Authors to whom correspondence should be addressed.
Academic Editor: Jinheung Kim
Materials 2022, 15(4), 1489; https://doi.org/10.3390/ma15041489
Received: 13 January 2022 / Revised: 5 February 2022 / Accepted: 10 February 2022 / Published: 16 February 2022
This work reports on H2 fuel generation from sewage water using Cu/CuO nanoporous (NP) electrodes. This is a novel concept for converting contaminated water into H2 fuel. The preparation of Cu/CuO NP was achieved using a simple thermal combustion process of Cu metallic foil at 550 °C for 1 h. The Cu/CuO surface consists of island-like structures, with an inter-distance of 100 nm. Each island has a highly porous surface with a pore diameter of about 250 nm. X-ray diffraction (XRD) confirmed the formation of monoclinic Cu/CuO NP material with a crystallite size of 89 nm. The prepared Cu/CuO photoelectrode was applied for H2 generation from sewage water achieving an incident to photon conversion efficiency (IPCE) of 14.6%. Further, the effects of light intensity and wavelength on the photoelectrode performance were assessed. The current density (Jph) value increased from 2.17 to 4.7 mA·cm−2 upon raising the light power density from 50 to 100 mW·cm−2. Moreover, the enthalpy (ΔH*) and entropy (ΔS*) values of Cu/CuO electrode were determined as 9.519 KJ mol−1 and 180.4 JK−1·mol−1, respectively. The results obtained in the present study are very promising for solving the problem of energy in far regions by converting sewage water to H2 fuel. View Full-Text
Keywords: hydrogen generation; sewage water; photocatalyst; water spiting; CuO; nonporous hydrogen generation; sewage water; photocatalyst; water spiting; CuO; nonporous
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MDPI and ACS Style

Hadia, N.M.A.; Abdelazeez, A.A.A.; Alzaid, M.; Shaban, M.; Mohamed, S.H.; Hoex, B.; Hajjiah, A.; Rabia, M. Converting Sewage Water into H2 Fuel Gas Using Cu/CuO Nanoporous Photocatalytic Electrodes. Materials 2022, 15, 1489. https://doi.org/10.3390/ma15041489

AMA Style

Hadia NMA, Abdelazeez AAA, Alzaid M, Shaban M, Mohamed SH, Hoex B, Hajjiah A, Rabia M. Converting Sewage Water into H2 Fuel Gas Using Cu/CuO Nanoporous Photocatalytic Electrodes. Materials. 2022; 15(4):1489. https://doi.org/10.3390/ma15041489

Chicago/Turabian Style

Hadia, N. M. A., Ahmed Adel A. Abdelazeez, Meshal Alzaid, Mohamed Shaban, S. H. Mohamed, Bram Hoex, Ali Hajjiah, and Mohamed Rabia. 2022. "Converting Sewage Water into H2 Fuel Gas Using Cu/CuO Nanoporous Photocatalytic Electrodes" Materials 15, no. 4: 1489. https://doi.org/10.3390/ma15041489

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