Converting solar energy into fuel via photo-assisted water splitting to generate H₂ or drive CO₂ photoreduction is an attractive scientific and technological goal to address the increasing global demand for energy and to reduce the impact of energy production on climate change. Solar-driven hydrogenation of CO₂ into value-added chemical products is one of the most promising strategies for reducing CO₂ and is anticipated to be a sustainable energy source shortly. In this study, we focus on the utilization of different sustainable H₂ sources for the photoreduction of CO₂ to value-added organic products. Various photocatalysts, photoreactor configurations, and reaction parameters for the photoreduction of CO₂ are discussed. For future research endeavors, a general approach for the photoreduction of CO₂ to mimic natural photosynthesis, in which the H₂ source is provided directly during the photocatalytic water splitting, is proposed and verified to generate value-added organic products successfully.

通过光辅助水分解将太阳能转化为燃料以产生H ₂或推动CO _2的光还原是一项有吸引力的科学技术目标，旨在解决全球对能源日益增长的需求，并减少能源生产对气候变化的影响。太阳能驱动的将CO ₂加氢成增值化工产品是减少CO ₂的最有希望的战略之一，并且有望在短期内成为可持续的能源。在这项研究中，我们专注于利用不同的可持续H ₂源进行CO ₂的光还原增值有机产品。讨论了各种光催化剂，光反应器构型和用于CO ₂光还原的反应参数。为了将来的研究工作，提出并验证了在自然光合作用过程中直接提供H ₂源的CO ₂光还原模拟自然光合作用的通用方法，并成功地验证了该方法成功地产生了增值有机产品。