Multifunctional heterojunctions, based on function- and structure-oriented material design and accurate synthesis, have emerged as an important platform in materials chemistry with great application prospects for solving practically complex science and engineering problems. Herein, a versatile Z-scheme In₂S₃@PCN-224 platform, based on Zr-metal-organic framework (PCN-224) and In₂S₃ nanosheets, was constructed by solvothermal and hydrothermal methods. Benefited from the high efficiency in the photoinduced electron-hole separation of Z-scheme heterojunctions, high specific surface area of PCN-224 core, and good visible-light absorption of hydrophilic In₂S₃ shell, In₂S₃@PCN-224 exhibited excellent performance in visible-light photocatalytic degradation towards tetracycline hydrochloride (TC). Furthermore, In₂S₃@PCN-224 could be also used in fluorescence detection for TC with good analytical performance in terms of a large Stokes shift, fast response, and a low detection limit (55 nM). This work provides the inspiration for designing multifunctional heterojunctions, which will extend the boundary of "integration of diagnosis and treatment" in environmental management and control.

基于功能和结构导向的材料设计和精确合成的多功能异质结已成为材料化学的重要平台，在解决实际复杂的科学和工程问题方面具有巨大的应用前景。在此，基于Zr-金属有机框架（PCN-224）和In ₂ S ₃纳米片，通过溶剂热和水热法构建了一个多功能的Z-方案In ₂ S _{3 @PCN-224平台。得益于 Z 型异质结的高效光致电子-空穴分离、PCN-224 核的高比表面积以及亲水性 In 2} S ₃壳的良好可见光吸收，In ₂S ₃ @PCN-224 在可见光光催化降解四环素盐酸盐（TC）方面表现出优异的性能。此外，In ₂ S ₃ @PCN-224还可用于TC的荧光检测，具有良好的斯托克斯位移大、响应速度快、检测限低（55 nM）等分析性能。该工作为设计多功能异质结提供了灵感，将拓展环境管控中“诊疗一体化”的边界。