A review of the interfacial chemistry of Ti 3 C 2 MXene-coordinated nanocomposites for photocatalytic green H 2 evolution

초록

Photocatalytic H 2 production stands as a pivotal pathway toward sustainable energy generation, where Ti 3 C 2 MXene materials have garnered significant attention owing to their distinctive structural attributes and exceptional photocatalytic performance. In this context, this review explores recent advancements in Ti 3 C 2 -coordi- nated nanocomposites, incorporating inorganic, organic, and polymeric materials, that have been designed to demonstrate enhanced photocatalytic efficiency for the H 2 evolution reaction. First, we delve into the synthesis strategies employed to fabricate Ti 3 C 2 nanocomposites, emphasizing the crucial role of various precursors and fabrication techniques in tailoring the morphological, structural, and electronic properties of the resulting materials. In the mainstream, we analyze the integration of inorganic/organic counterparts, including, metal oxides, metal sulfides and metal -organic frameworks, elucidating their contributions towards enhancing charge transfer kinetics, surface area, and stability of Ti 3 C 2 -coordinated nanocomposites. Additionally, we evaluate the utilization of polymeric matrices, such as g-C 3 N 4 , in facilitating electron transport and promoting interfacial interactions within the composite systems. We then provide an in-depth examination of the photocatalytic performance of Ti 3 C 2 nanocomposites for H 2 evolution, emphasizing key parameters such as H 2 production rate, quantum efficiency, and long-term stability. Through a comprehensive analysis of experimental results and mechanistic insights, we elucidate the underlying principles governing the enhanced photocatalytic activity observed in these composite systems. Lastly, we discuss the remaining challenges and future prospects in the field, including the development of scalable synthesis methods, elucidation of reaction mechanisms, and integration of Ti 3 C 2 nanocomposites into practical H 2 production systems. Overall, this review illustrates the degree to which supporting materials impact the photocatalytic activity of Ti 3 C 2 and provides valuable insights into the design, fabrication, and application of Ti 3 C 2 -coordinated nanocomposites for efficient and sustainable H 2 production as part of high-performance renewable energy conversion systems.

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