Elaboration of nano titania-magnetic reduced graphene oxide for degradation of tartrazine dye in aqueous solution |
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| Institution: | 1. Institut Européen des Membranes, IEM – UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France;2. Dept. of Analysis and Evaluation, Egyptian Petroleum Research Institute, Cairo, Nasr City P.B. 11727, Egypt;3. Chemical Engineering Department, Military Technical College, Cairo, Egypt;1. Department of Physics, International Islamic University, Islamabad, Pakistan;2. Laboratory of Nanoscience and Technology, Department of Physics, Quaid i Azam University, Islamabad, Pakistan;3. Institute of Biomedical and Genetic Engineering (IBGE), Islamabad, Pakistan;1. Caspian Faculty of Engineering, College of Engineering, University of Tehran, Tehran, Iran;2. Membrane Research Laboratory, Caspian Faculty of Engineering, College of Engineering, University of Tehran, Tehran, Iran;3. Fouman Faculty of Engineering, College of Engineering, University of Tehran, Tehran, Iran;1. Photocatalysis Laboratory, Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India;2. Department of Chemistry, Govt. Arts College, Tiruvannamalai, Tamilnadu, India;3. Nanomaterials Laboratory, Department of Chemistry, Kalasalingam Academy of Research and Education, Krishnankoil 626 126, Tamilnadu, India;1. State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China;2. Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China |
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| Abstract: | In this paper, magnetic nanocomposites are synthesized by loading reduced graphene oxide (RG) with two components of nanoparticles consisting of titanium dioxide (TiO2) and magnetite (Fe3O4) with varying amounts. The structural and magnetic features of the prepared composite photocatalysts were investigated by powder X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), transmission electron microscopy (TEM), UV–vis diffuse reflectance spectra (UV–vis/DRS), Raman and vibrating sample magnetometer (VSM). The resulting TiO2/magnetite reduced graphene oxide (MRGT) composite demonstrated intrinsic visible light photocatalytic activity, on degradation of tartrazine (TZ) dye from a synthetic aqueous solution. Specifically, it exhibits higher photocatalytic activity than magnetite reduced graphene oxide (MRG) and TiO2 nanoparticles. The photocatalytic degradation of TZ dye when using MRG and TiO2 for 3 h under visible light was 35% and 10% respectively, whereas for MRGT it was more than 95%. The higher photocatalytic efficiency of MRGT is due to the existence of reduced graphene oxide and magnetite which enhances the photocatalytic efficiency of the composite in visible light towards the degradation of harmful soluble azo dye (tartrazine). |
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| Keywords: | Graphene titanate Photo-degradation Tartrazine |
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