Xu Jiasheng, Zhang Te
College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, P.R. China.
Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds, College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, 121013, P.R. China.
Sci Rep. 2019 Jul 31;9(1):11099. doi: 10.1038/s41598-019-47155-y.
The spent fluid catalytic cracking catalyst (FCC) has been loaded with different content of VO and TiO through a modified-impregnation method. X-ray Diffraction (XRD), ultraviolet-visible spectrophotometry (UV-Vis), Scanning Electron Microscope (SEM), and Fourier Transform Infrared spectroscopy (FT-IR) are used to characterize the structure and morphology of these samples. Their photocatalytic activity was evaluated by degradation of methylene blue (MB) solution under 300 W Xenon lamp irradiation. The interplanar spacing of the zeolite Y (111) plane is affected by the amount of the loaded VO on spent FCC catalyst. The (111) plane of spent FCC catalyst loaded with VO and TiO sample is 1.404 nm, which is higher than that of the zeolite Y (1.395 nm). The amount of adsorption of MB and the photocatalytic activity for the degradation increased with increasing the interplanar spacing of the (111) plane of sample. We fabricated of spent FCC catalyst composites by loaded VO and TiO, which effectively solved the spent FCC catalyst disposal problem. The efficiency of the developed sample provides a potentially economical way of degrading MB.
通过改进的浸渍法，向废流化催化裂化催化剂（FCC）中负载了不同含量的VO和TiO。采用X射线衍射（XRD）、紫外可见分光光度法（UV-Vis）、扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）对这些样品的结构和形貌进行了表征。通过在300W氙灯照射下亚甲基蓝（MB）溶液的降解来评估它们的光催化活性。废FCC催化剂上负载的VO量会影响Y型沸石（111）晶面的面间距。负载VO和TiO的废FCC催化剂样品的（111）晶面为1.404nm，高于Y型沸石的（1.395nm）。MB的吸附量和降解的光催化活性随样品（111）晶面面间距的增加而增加。我们通过负载VO和TiO制备了废FCC催化剂复合材料，有效解决了废FCC催化剂的处置问题。所制备样品的效率为降解MB提供了一种潜在的经济方法。
