开发用于减少Cr(VI)和降解抗生素的有效光催化剂仍然是一个挑战。本工作报告了一种新型异质结复合材料的开发,BiOCl/BaTiO3@Co-BDC-MOF(BOC/BTO@Co-MOF),基于溶剂热技术。要表征材料的表面和主体特征,FE-SEM等技术,HR-TEM,BET/BJH,XPS,FT-IR,p-XRD,使用UV-Vis-DRS。根据结果,BiOCl/BaTiO3纳米复合材料均匀分散在棒状Co-BDCMOF上,导致表面上的分层纹理。复合结构的另一个优点是强的界面增强,促进光激发电子-空穴对的分离。此外,与原始的同行相比,异质结构材料表现出优异的表面积和孔性能。通过优化各种分析参数,评估了还原和降解Cr(VI)/SMX污染物的光催化效率,如pH值,催化负载浓度,分析物浓度,和清道夫的角色。特别设计的BOC/BTO@Co-MOF复合材料在pH3.0的60.0-90.0分钟的可见光照射下实现了96.5%的Cr(VI)减少和98.2%的SMX降解。这种材料是高度可重复使用的,具有六次回收潜力。这项研究的结果有助于更好地了解水净化系统中无机和有机污染物的有效净化。
The development of effective photocatalysts for the reduction of Cr(VI) and the degradation of antibiotics remains a challenge. The present work reports the development of a novel heterojunction composite material, BiOCl/BaTiO3@Co-BDC-MOF (BOC/BTO@Co-MOF), based on solvothermal techniques. To characterize the surface and bulk features of the material, techniques such as FE-SEM, HR-TEM, BET/BJH, XPS, FT-IR, p-XRD, and UV-Vis-DRS were used. Based on the results, the BiOCl/BaTiO3 nanocomposites are uniformly dispersed on the rod-shaped Co-BDC MOF, resulting in a layered texture on the surface. A further advantage of the composite structure is the strong interfacial enhancement facilitating the separation of photoexcited electron-hole pairs. Also, compared to its pristine counterparts, the heterostructure material exhibited excellent surface area and pore properties. The photocatalytic efficiency towards reduction and degradation of Cr(VI)/SMX pollutants were evaluated by optimizing various analytical parameters, such as pH, catalytic loading concentrations, analyte concentration, and scavenger role. The specially designed BOC/BTO@Co-MOF composite achieved a 96.5% Cr(VI) reduction and 98.2% SMX degradation under 60.0-90.0 min of visible light illumination at pH 3.0. This material is highly reusable and has a six-time recycling potential. The findings of this study contribute to a better understanding of the efficient decontamination of inorganic and organic pollutants in water purification systems.