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：

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溶液法制备的光催化纳米异质结构和化学键合结

虽然最初将单一化合物半导体用于光催化，但将两种化合物结合形成异质结会显着提高光催化性能。这篇综述将概述异质结的优越性，解释由纳米粒子组装而成的不同异质结构，并讨论在异质结处实现大质量接触的重要性。参考了用于提高电荷载流子性能并减少重组的方法。基于解决方案的合成方法因其低成本的可扩展性和结合大量化合物的能力而被选为优选的生产途径。这篇综述文章的主要目的是提供对基于化学溶液的方法形成纳米异质结构中用于光催化的化学键合结的方法的见解。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。针对每种合成方法解决了不同光催化剂的合成。提供溶液合成来耦合氧化物半导体（即TiO 针对每种合成方法解决了不同光催化剂的合成。提供溶液合成来耦合氧化物半导体（即TiO 针对每种合成方法解决了不同光催化剂的合成。提供溶液合成来耦合氧化物半导体（即TiO₂，ZnO，WO ₃，Fe ₂ O ₃，BiVO ₄）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颗粒。