MXene materials, a young family of two-dimensional transition-metal carbides and nitrides, hold great promise for diverse demanding applications. Recently, it was discovered that MXenes can boost the efficiency of CO₂ photocatalysis, e.g. by accelerating the charge separation, alleviating the photocorrosion, enhancing CO₂ adsorption and activation, and promoting the photothermal conversion capability. In this mini-review, we summarize recent developments of photocatalysts based on MXene materials for various CO₂ reduction reactions with a focus on the role of MXenes in photocatalytic processes. Several perspectives in terms of challenges and future research in this area are also highlighted.

MXene材料是二维过渡金属碳化物和氮化物的年轻家族，在各种苛刻的应用中具有广阔的前景。最近，发现MXenes可以例如通过加速电荷分离，减轻光腐蚀，增强CO ₂吸附和活化以及促进光热转化能力来提高CO ₂光催化的效率。在此小型审查中，我们总结了基于MXene材料的光催化剂在各种CO ₂还原反应中的最新进展，重点是MXene在光催化过程中的作用。还着重介绍了该领域在挑战和未来研究方面的几种观点。