Reaction Kinetics, Mechanisms and Catalysis ( IF 1.8 ) Pub Date : 2020-09-10 , DOI: 10.1007/s11144-020-01863-z Faria K. Naqvi , Saba Beg , Kaseed Anwar
In the current research, BiVO4 samples of co-doped copper and iron (Cu/Fe–BiVO4) were synthesized using the gel combustion technique. The synthesized preparations for the degradation of phenol with visible light radiation were used as a photocatalyst. Synthesized samples have been characterized by X-ray diffraction (XRD), UV–Visible spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In order to determined the particle size XRD and TEM plays an important role which was calculated in the range of 22–30 nm. Morphology of the samples were revealed by SEM. A comparison of the kinetics of photocatalytic degradation of phenol by Cu/Fe–BiVO4 was performed under visible light. The XRD patterns show the various phases of the synthesized samples. The Cu/Fe–BiVO4 sample has higher photocatalytic activity as compared to parent BiVO4. For phenol degradation under visible light radiation, the degradation mechanism was suggested.
中文翻译:
可见光活性铜铁共掺杂BiVO 4光催化剂的降解苯酚
在当前的研究中,使用凝胶燃烧技术合成 了共掺杂铜和铁的BiVO 4样品(Cu / Fe–BiVO 4)。用于可见光辐射降解苯酚的合成制剂被用作光催化剂。合成样品的特征在于X射线衍射(XRD),紫外可见光谱,扫描电子显微镜(SEM)和透射电子显微镜(TEM)。为了确定粒径,XRD和TEM在22–30 nm范围内计算中起着重要作用。通过SEM揭示样品的形态。Cu / Fe–BiVO 4光催化降解苯酚的动力学比较在可见光下进行。XRD图谱显示了合成样品的各个相。与母体BiVO 4相比,Cu / Fe–BiVO 4样品具有更高的光催化活性。对于可见光辐射下的苯酚降解,提出了降解机理。