In the past decade, homojunction-based semiconductors have piqued the interest of many researchers and this research area is advancing at a rapid pace. Homojunction photocatalysts have gained tremendous popularity due to their versatility and robustness that they can be applied across multiple industrial sectors. Moreover, homojunction photocatalysts utilize green and virtually inexhaustible solar energy to trigger chemical reactions. Up till today, researchers are consistently introducing novel strategies to promote the photocatalytic performances of homojunction-based semiconductors accredited to their never-ending growth potential. In this review, synthetic approaches to prepare various homojunction photocatalysts (including TiO₂-based, metal oxides, metal oxyhalides, metallates, metal chalcogenides and metal free-based) are comprehensively discussed. The effects of reaction parameters and precursors used during the fabrication process on the resulting homojunction materials are also presented in detail. Finally, latest advancements in the photocatalytic application of homojunction semiconductors are extensively reviewed, with particular emphasis on environmental- and energy-related issues.

在过去的十年中，基于同质结的半导体引起了许多研究人员的兴趣，并且这个研究领域正在迅速发展。同质结光催化剂因其多功能性和耐用性而广受欢迎，可应用于多个工业领域。此外，同质结光催化剂利用绿色且几乎不竭的太阳能来引发化学反应。直到今天，研究人员一直在不断采用新颖的策略来提高基于同质结的半导体的光催化性能，这被证明具有无限增长的潜力。在这篇综述中，制备各种同质结光催化剂（包括TiO _2的合成方法）基金属氧化物，金属卤氧化物，金属盐，硫属金属化物和游离金属基）进行了全面讨论。还详细介绍了制造过程中使用的反应参数和前驱物对所得同质结材料的影响。最后，对同质结半导体在光催化应用中的最新进展进行了广泛的综述，特别强调了与环境和能源有关的问题。