The polarization electric field feature of piezoelectric materials is greatly beneficial to enhance the separation and migration of photogenerated carriers. Herein, we propose a BaTiO/CuPbSbS (BTO/CPSS) heterostructure photocatalyst through the combination of hydrothermal and facile butyldithiocarbamate acid (BDCA) solution process, in which the catalytic degradation performance of BTO/CPSS can be effectively enhanced by the synergistic effect of piezoelectricity and semiconductor properties. Through dedicatedly adjusting the loading amount of CPSS, the Rhodamine B (RhB) degradation efficiency of BTO/CPSS achieves 9.33×10 min along with a strong catalyst stability, which is attributed to the prolonged charge life time due to the piezoelectricity of the optimal BTO/CPSS. Moreover, the heterostructure of BTO/CPSS and polarization effect of BTO can further enhance the separation of electron-hole pairs, which can provide stronger driving force for catalytic degradation.

中文翻译：

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轻松合成具有增强压电光催化降解性能的先进 BaTiO3/CuPbSbS3 异质结构光催化剂

压电材料的极化电场特性非常有利于增强光生载流子的分离和迁移。在此，我们提出了一种通过水热和简易丁基二硫代氨基甲酸（BDCA）溶液工艺相结合的BaTiO/CuPbSbS（BTO/CPSS）异质结构光催化剂，其中BTO/CPSS的催化降解性能可以通过压电的协同效应有效增强和半导体特性。通过专门调整CPSS的负载量，BTO/CPSS的罗丹明B（RhB）降解效率达到9.33×10 min，并且具有很强的催化剂稳定性，这归因于最佳BTO的压电性延长了充电寿命/CPSS。而且，BTO/CPSS的异质结构和BTO的极化效应可以进一步增强电子-空穴对的分离，为催化降解提供更强的驱动力。