TiC 2D MXene: Recent Progress and Perspectives in Photocatalysis.

In 2011, with the successful isolation of TiC, a door of 2D layered MXene has been opened and received growing attention from researchers. MXene refers to a family of two-dimensional (2D) materials made up of atomic layers of the transition metal, carbide, nitrides, or carbonitrides. Given the large surface area, adjustable surface terminal groups, and excellent conductivity of MXene, it has shown exciting potential in photocatalysis, energy conversion, and many other fields. Among many 2D MXene, TiC was the most studied for its availability, low cost, facile modification procedure, and outstanding electronic properties. In previous investigations, TiC has shown huge potential in the photocatalysis area. TiC in a photocatalysis system can enhance the separation of photoinduced electrons and holes, reduce charge recombination, and thus improve the photocatalysis performance in many systems. To adjust the performance of TiC in different applications, the properties of TiC including morphology, structures, and stability are tunable by different post-processing method in the hybridized materials. In this review, an all-around understanding of the fabrication and modification methods of TiC and their connection to photocatalytic applications of TiC MXene based materials are presented. Moreover, a summary and our perspectives of TiC are given for further investigation.