Publication: Fabricating of multi-interfacial charge transfer paths in the novel noble-metal-free Ni2P/ZnS/g-C3N4 ternary nanocomposite for enhanced charge separation and transfer for photocatalytic H2 generation
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Date
2024
Authors
Rameshbabu R.
Paw J.K.S.
Ajaijawahar K.
Vinoth V.
Jadoun S.
Pugazhenthiran N.
Kiong T.S.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
This work reports the development of a novel Ni?P/ZnS/C?N? ternary nanocomposite photocatalyst for efficient hydrogen (H?) production. The nanocomposite was synthesized using a facile approach combining hydrothermal synthesis, ball milling, and wet impregnation methods then characterized using various techniques. Photocatalytic H? generation was evaluated under simulated solar irradiation with sodium sulfite (Na?SO?)/sodium sulfide (Na?S) as sacrificial reagents. The optimized 3NP/ZnS-8CN (3% Ni2P/ZnS/8% C3N4) catalyst displayed an exceptional H? generation rate of 3991 �mol h?? g??, exceeding both pristine g-C3N4 (by 10.2 times) and 3% Ni2P/ZnS (by 1.2 times). This represents the highest reported rate of H? evolution for a graphitic carbon nitride (g-C3N4) based ternary nanocomposite under simulated solar radiation. Furthermore, the 3NP/ZnS-8CN photocatalyst exhibited good stability over four reaction cycles. This study provides valuable insights for designing efficient noble metal-free g-C3N4-based photocatalysts, which can significantly contribute to the transition to solar-driven hydrogen generation. The results of this study suggest that the synthesized composite materials hold significant promise for the advancement of new energy technologies. ? 2024 Elsevier B.V.
Description
Keywords
Ball milling , Carbon nitride , Charge transfer , Hydrogen production , Hydrothermal synthesis , Nanocomposites , Photocatalytic activity , Precious metals , Solar light , Solar power generation , Carrier transfer , Co-catalyse , Energy , H 2 production , Interfacial charge transfer , Metal free , Ni2P/ZnS/g-C3N4 , Photo-catalytic , Synthesised , Ternary nanocomposites , Sulfur compounds