The Role of Annealing Temperature in Photocatalytic Performance of Fe3O4/SnO2 nanocomposites

3rd International Conference on Functional Materials Science 2016

Paramarta, Valentinus^1,2 ; Taufik, Ardiansyah^1,2 ; Saleh, Rosari^1,2

Departemen Fisika, Fakultas MIPA, Universitas Indonesia, Depok

16424, Indonesia^1

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

16424, Indonesia^2

关键词: Annealing temperatures;    Magnetite materials;    Operational parameters;    Photo catalytic degradation;    Photocatalytic activities;    Photocatalytic performance;    Tetragonal structure;    UV-light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/196/1/012032/pdf
DOI  :  10.1088/1757-899X/196/1/012032

来源: IOP

【 摘 要 】

In this work, SnO2nanoparticles with the variation of annealing temperature (400°C-800°C) were used as photocatalyst for remove organic dye from the aqueous solution. SnO2nanoparticles were synthesized using sol-gel method. For enhancing the stability and the photocatalytic activity of the samples, magnetite materials (Fe3O4) were combined with SnO2nanoparticles. The prepared samples characterized by X-ray Diffraction (XRD). The X-ray diffraction shows tetragonal structure of SnO2and cubic spinel of Fe3O4as the components of the prepared nanocomposites. The photocatalytic activity of the samples was studied using Methylene Blue (MB) as a model organic pollutant. The photocatalytic degradation of MB by SnO2and Fe3O4nanocomposites under UV light irradiation was examined by varying the operational parameters such as catalyst dosage and scavengers. Among the variation annealing temperature of SnO2nanoparticles, the 700°C annealing temperature of SnO2showed the highest photocatalytic activity. The repeatability of photocatalytic activity was also tested.