Improving the sonocatalytic performance of good crystallinity ZrO2 nanocomposite through graphene addition

International Symposium on Current Progress in Functional Materials

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

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

16424, Indonesia^1

Integrated Laboratory of Energy and Environment, Faculty of Mathematics, Natural Sciences Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^2

关键词: Annealing temperatures;    Brunauer emmett tellers;    Characterization methods;    Coprecipitation method;    Crystalline structure;    grapheme;    Sonocatalytic;    ZrO2;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/188/1/012045/pdf
DOI  :  10.1088/1757-899X/188/1/012045

来源: IOP

【 摘 要 】

In this study, the catalytic performance of the ZrO2nanoparticles is enhanced by combining ultrasonic radiation with graphene material addition. The structural, morphological and surface properties of sol-gel synthesized ZrO2nanoparticles with three different annealing temperatures (350°C, 550°C, and 750°C) were investigated using various characterization methods, including X-Ray Diffraction, Transmission Electron Microscope measurements and Brunauer-Emmett-Teller measurements. The result show that if the annealing process does not take place, ZrO2nanoparticles have an amorphous structure. The formation of the crystalline structures of the tetragonal phase of the nanoparticle begins at an annealing temperature of 550°C. The highest sonocatalytic performance of nanoparticles is achieved at an annealing temperature of 550°C. The ZrO2/graphene nanocomposites were produced via co-precipitation methods at all annealing temperatures. The sonocatalytic activities in the presence of ZrO2/graphene nanocomposite indicate an enhancement, compared with ZrO2nanoparticles. ZrO2with and without graphene composites shows a level of stability that would allow reuse. A reasonable catalysis mechanism of ZrO2with and without graphene composites is proposed.