A series of direct Z-scheme α-Fe₂O₃/MIL-101(Cr) hybrids were successfully prepared through a facile hydrothermal method in this work. And, the materials were characterized by some technologies including X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), N₂ adsorption-desorption, photoluminescence (PL) spectroscopy, Ultraviolet-visible (UV–vis) diffuse reflectance spectroscopy (DRS) and electron spin resonance (ESR). The photocatalytic activities of the hybrids were evaluated by degradation of carbamazepine (CBZ) under visible light irradiation. It is found that 100% of CBZ was able to be removed after 180 min irradiation over the optimum α-Fe₂O₃ (0.3)/MIL-101(Cr) hybrid. The superior activity was engendered from good textural properties and the formation of a direct Z-scheme heterojunction in the hybrid. The decomposition process of CBZ and the formation of intermediate products were analyzed through liquid chromatography-tandem mass spectrometry (LC–MS) and a possible photodegradation pathway of the CBZ was proposed. Also, the possible mechanism for the photodegradation process was provided to illustrate the excellent performance. The work has paved a new way for the application of MOF materials in the design of efficient Z-scheme system for organic pollution degradation in wastewater.

一系列直接Z-方案的α-Fe的₂ ö ₃通过在本工作的简便水热法成功制备/ MIL-101（Cr）的杂化物。并且，通过一些技术对材料进行了表征，包括X射线衍射（XRD），扫描电子显微镜（SEM），能量色散X射线光谱（EDX），透射电子显微镜（TEM），傅里叶变换红外光谱（FT） -IR），X射线光电子能谱（XPS），N ₂吸附-解吸，光致发光（PL）光谱，紫外可见（UV-vis）漫反射光谱（DRS）和电子自旋共振（ESR）。通过卡马西平（CBZ）在可见光照射下的降解来评估杂种的光催化活性。据发现，CBZ的100％能180分钟照射在最佳之后除去的α-Fe ₂ ö ₃（0.3）/ MIL-101（Cr）杂种。优良的质地特性和杂化物中直接Z方案异质结的形成产生了优异的活性。通过液相色谱-串联质谱法（LC-MS）分析了CBZ的分解过程和中间产物的形成，并提出了CBZ可能的光降解途径。另外，提供了光降解过程的可能机理以说明优异的性能。这项工作为MOF材料在设计用于废水中有机污染降解的高效Z方案系统设计中铺平了一条新途径。