Ag/Fe3O4/ZrO2 Composite: Ternary Magnetically Separable UV-light-driven Photocatalyst for Removal Methylene Blue Dyes

4th International Conference on Advanced Materials Science and Technology

Kristianto, Y.^1,2 ; Taufik, A.^1,2 ; Saleh, R.^1,2

Department of Physics, Faculty of Mathematics and Sciences, Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^1

Integrated Laboratory of Energy and Environment, Fakultas MIPA, Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^2

关键词: Initial concentration;    Magnetically separable;    Photocatalytic activities;    Photocatalytic performance;    reusable;    Reusable catalysts;    UV driven;    UV-light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012061/pdf
DOI  :  10.1088/1757-899X/202/1/012061

来源: IOP

【 摘 要 】

In this research, we demonstrate the preparation of ternary Ag/Fe3O4/ZrO2composites as a novel magnetically separable UV-light-driven photocatalyst. The Fe3O4/ZrO2composites were successfully synthesized by using two-step methods, that is, sol-gel followed by ultrasonic-assisted method. Furthermore, the Fe3O4/ZrO2composites were coupled with silver through ultrasound-assisted method. The prepared samples were fairly characterized by using X-Ray Diffraction and UV-Vis DRS spectroscopy. The photocatalytic activity of this composite was tested to degrade methylene blue dyes under UV-light irradiation. The influence of catalyst dosage, initial concentration, and scavengers of active species were investigated and the results were discussed. Compared with Fe3O4/ZrO2sample, the Ag/Fe3O4/ZrO2composite with three weight ratio (5%, 15%, and 25%) of Ag to Fe3O4/ZrO2display higher photocatalytic activity. Among three variations of the weight ratio of Ag to Fe3O4/ZrO2, 15% weight ratio of Ag in Ag/Fe3O4/ZrO2exhibits the superior photocatalytic performance followed by weight ratio of 25% and 5%. Moreover, the composite was found to be a reusable catalyst.