Fozia Iram, Sidra Aslam, Javaria, Muhammad Safdar, Misbah Mirza, Muhammad Bilal Tahir, Muhammad Suleman Tahir
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Abstract
The pursuit of high-performance and cost-effective photoelectrocatalysts for water splitting stands as a focal point in sustainable energy research. In this investigation, we present the fabrication of a novel multifunctional g-C3N4/Al2S3 nanocomposite as photoelectrocatalyst utilizing the co-precipitation method. Tailored for application in photoelectrochemical water splitting under alkaline conditions, the resulting nanocomposite underwent physical characterization via X-ray diffraction and scanning electron microscopy, affirming its well-defined shape, size and crystallinity. Employing a three-dimensional nickel foam substrate as a conducting support, we scrutinized the performance of the g-C3N4/Al2S3 nanocomposite in the light assisted Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER). Our findings reveal the nanocomposites superiority over its pristine components (g-C3N4 and Al2S3) in terms of charge transport within an alkaline medium. Additionally, the g-C3N4/Al2S3 nanocomposite showcases enhanced photoelectrocatalytic efficiencies, achieving low overpotentials of 111 mV for HER and 217 mV for OER respectively, to reach a current density of 10 mA cm–2. The prepared g-C3N4/Al2S3 electrocatalyst demonstrates exceptional durability in both HER and OER processes, attributed to the robust electronic coupling between g-C3N4 and Al2S3. This study marks a significant advancement in the development of efficient and robust photoelectrochemical systems for water splitting, promising a brighter future for sustainable energy production.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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