Comparison of Photocatalytic Performance of Different Types of Graphene in Fe3O4/SnO2 Composites

[摘要] We have reported the role of annealing temperature Fe3O4/SnO2nanocomposites as a photocatalyst for remove methylene blue (MB) dye from aqueous solution. However, how to enhanced the degradation performance of Fe3O4/SnO2nanocomposites is important to its photocatalytic application. Therefore, in this work Fe3O4/SnO2nanocomposites was combined with two different types of graphene materials (NGP and grahene) to improve the photocatalytic performance for remove methylene blue (MB) dye. Fe3O4/SnO2/NGP and Fe3O4/SnO2/graphene have been successfully synthesized by co-precipitation method. The influence of two types graphene on Fe3O4/SnO2nanocomposites properties were systematically investigated by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and Thermal gravimetric analysis (TGA). Degradation of methylene Blue (MB) in aqueous solution was studied in detail under photocatalytic process. Effect of catalyst dosage (0.1-0.4 g/L) and scavengers on dye degradation were carried out to check the efficiency of photocatalyst. The results indicated Fe3O4/SnO2/graphene displayed higher photocatalytic activity than other catalyst. The reusability tests have also been done to ensure the stability of the used photocatalyst.

[发布机构] Departemen Fisika, Fakultas MIPA-Universitas Indonesia, Depok; 16424, Indonesia^1;Integrated Laboratory of Energy and Environment, Fakultas MIPA-Universitas Indonesia, Depok; 16424, Indonesia^2

[效力级别] 化学

[关键词] Annealing temperatures;Coprecipitation method;Effect of catalyst;Photocatalytic activities;Photocatalytic application;Photocatalytic performance;Photocatalytic process;Thermal gravimetric analyses (TGA)