Abstract While single compound semiconductors were initially used for photocatalysis, combining two compounds to form a heterojunction significantly increases the photocatalysis performance. This review will outline how heterojunctions are superior, explain the different heterostructure architectures assembled from nanoparticles, and discuss the importance of achieving a large and quality contact in the junction, the heterojunction. Reference is made to methods for increasing the charge carrier performance and reducing recombination. Solution-based synthesis approaches, have been selected as the preferred route of manufacture, for the low cost scalability, and ability to combine a larger number of compounds. The main objective of this review article is to provide insight to the range of chemical solution-based methods for forming chemically bonded junction in nanoheterostructures for photocatalysis. Methods include chemical precipitation, impregnation, chemical bath deposition, hot injection, solvothermal, photo-deposition, electrochemical deposition, cation exchange and linker assisted assembly. The synthesis of different photocatalysts is addressed for each synthesis method. Solution synthesis is offered for coupling oxide semiconductors (i.e. TiO2, ZnO, WO3, Fe2O3, BiVO4) with other oxides or metal chalcogenide quantum dots or metallic plasmonic nanoparticles.

中文翻译：

---

基于溶液的方法制备的光催化纳米异质结构和化学键合结

摘要 虽然单化合物半导体最初用于光催化，但将两种化合物结合形成异质结显着提高了光催化性能。这篇综述将概述异质结的优越性，解释由纳米粒子组装的不同异质结构，并讨论在异质结结中实现大而优质的接触的重要性。参考了提高电荷载流子性能和减少复合的方法。基于溶液的合成方法已被选为首选的制造途径，因为它具有低成本的可扩展性和组合大量化合物的能力。这篇评论文章的主要目的是深入了解在纳米异质结构中形成化学键结以进行光催化的基于化学溶液的方法的范围。方法包括化学沉淀、浸渍、化学浴沉积、热注射、溶剂热、光沉积、电化学沉积、阳离子交换和接头辅助组装。每种合成方法都涉及不同光催化剂的合成。提供溶液合成，用于将氧化物半导体（即 TiO2、ZnO、WO3、Fe2O3、BiVO4）与其他氧化物或金属硫属化物量子点或金属等离子体纳米粒子耦合。电化学沉积、阳离子交换和接头辅助组装。每种合成方法都涉及不同光催化剂的合成。提供溶液合成，用于将氧化物半导体（即 TiO2、ZnO、WO3、Fe2O3、BiVO4）与其他氧化物或金属硫属化物量子点或金属等离子体纳米粒子耦合。电化学沉积、阳离子交换和接头辅助组装。每种合成方法都涉及不同光催化剂的合成。提供溶液合成，用于将氧化物半导体（即 TiO2、ZnO、WO3、Fe2O3、BiVO4）与其他氧化物或金属硫属化物量子点或金属等离子体纳米粒子耦合。