Recent advances in layered double hydroixdes@MXene (LDHs@MXene) composites: Synthesis, properties, and catalytic applications

The overuse of fossil fuels has led to severe energy shortages and environmental pollution, raising global concern. Photocatalysis has emerged as a promising technology for addressing global energy and environmental challenges. By harnessing solar energy to drive chemical reactions, photocatalytic processes enable clean energy production and the degradation of environmental pollutants. The development of new materials featuring layered structures, low cost, and large surface areas offers a promising strategy to address these challenges and promote sustainable development. Therefore, it is necessary to design active, dependable, and reasonably priced catalysts or photocatalysts in order to achieve the intended photocatalytic outcomes. 2D nanomaterials may generally be identified as efficient photocatalysts in various fields. Two of the best 2D nanomaterials are layered double hydroxides (LDHs) and MXene, complement each other in several ways because of their distinct properties. The lack of research on LDHs/MXene nanocomposites is filled by this comprehensive review, which focuses on techniques, structural morphologies, and their applications such as supercapacitors, water splitting and photocatalytic reduction of pollutants. Various factors influencing the composite's morphology in order to give more understanding of the morphology control mechanism were also discussed in details. Finally, the current challenges for using LDHs/MXene nanocomposites for photocatalysis and future prospects in this field were also explored.