Among the greenhouse gases, CO₂ is considered to be the most important member of the group; therefore presenting remediation towards solving this problem appears to be of the utmost importance. In this paper, all the recent advances in the photoselective protocols and engineering strategies for the CO₂ reduction are outlined, and the three most challenging factors of those strategies are reviewed. The first part of this review focuses on the band-gap and morphological structures, while the second part discusses the importance of the tailoring of the surface chemical compositions. In the third part of this paper, the other considerable factors such as acid-base tuning, interfacial properties improvement, and finally the utilization of proper cocatalysts are put into discussion. This review addresses many other literatures provided in this field of science, and simultaneously complements many other reviews presented on the strategies provided for the photoselective CO₂ reduction, with an engineering-based orientation.

在温室气体中，CO ₂被认为是该组中最重要的成员。因此，提出解决该问题的补救措施似乎至关重要。在本文中，CO ₂的光选择方案和工程策略的所有最新进展概述了减排量，并回顾了这些策略的三个最具挑战性的因素。本文的第一部分着重于带隙和形态结构，而第二部分则讨论了调整表面化学成分的重要性。在本文的第三部分中，讨论了其他重要因素，例如酸碱调节，界面性能改善以及最终使用合适的助催化剂。这篇评论涉及该科学领域中提供的许多其他文献，同时以基于工程的方向对有关为光选择性CO ₂还原提供的策略提出的许多其他评论进行了补充。