利用可循环利用的Ag-Fe共掺杂TiO处理高COD制药废水₂COD去除动力学Y1 - 24-04-2020 N2 -在不同的水流中发现了各种各样的活性药物成分(API)。这些合成的不可生物降解的有机物由于毒性给传统的废水处理带来了麻烦。现在迫切需要开发替代技术，如使用可重复使用的光催化剂，利用可见光驱动的光催化将这些物质完全氧化成二氧化碳和水。采用溶胶-凝胶法制备了0.5 wt% Fe和Ti/Ag摩尔比为30的Fe掺杂TiO2和Ag-Fe共掺杂TiO2纳米粒子(Ag-Fe CT 30)。利用各种分析技术研究了纳米粒子的形貌和结构。在太阳光和紫外线照射下，Ag-Fe CT 30光催化剂在去除水中的抗真菌药物中间体二氟三唑苯乙酮(DFTA)方面表现出了优异的光催化活性。Ag-Fe CT 30光催化剂在阳光和紫外线照射下的COD还原效率最高，证明了Ag-Fe CT 30光催化剂既能吸收紫外线，也能吸收可见光。Ag-Fe CT 30在4次试验中表现出良好的稳定性，疗效没有明显下降。本研究为可重复使用Ag-Fe cct - 30光催化剂在太阳能处理高强度COD废水中的应用提供了见解。测定了光催化还原COD的动力学。 Highlights TiO2, Fe doped TiO2 and Ag-Fe codoped TiO2 nanoparticles have been successfully synthesized using the sol-gel method and characterized using various analytical methods. Photocatalytic activity of different photocatalysts for mineralization of DFTA is compared under solar and UV irradiation for COD removal (with initial COD of 75,000 mg/L) has been carried out. Kinetics for Ag-Fe codoped TiO2 photocatalysis has been determined. The photocatalysts can be easily separated from the water after application and show good stability up to 4 runs indicated from six recycled tests. JF - Current World Environment JA - VL - 67 IS - 68 UR - www.a-i-l-s-a.com/article/1184/ SP - EP - PB - M3 - 10.12944/CWE.15.1.17 ER -