نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشگاه صنعتی اصفهان، اصفهان، ایران
2 دانشکده مواد دانشگاه صنعتی اصفهان
3 دانشکده مهندسی مواد، دانشکده فنی مهندسی، دانشگاه مراغه، مراغه، آذربایجان شرقی
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Introduction and Objectives: Pollution of wastewater from textile, pharmaceutical and agricultural industries has always been a serious environmental problem. Due to the complex structure of existing pollutants, traditional water treatment methods are often ineffective or have low efficiency. Electrocatalytic method, which is one of the advanced oxidation processes, has a very high ability to remove organic pollutants from industrial wastewater. Tin oxide inherently has good electrocatalytic properties, which can be improved by structural modification.
Materials and Methods: In this study, antimony-doped tin oxide nanoparticles were synthesized using the hydrothermal method. Structural studies of the particles were carried out by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy. Then, these nanoparticles were coated on commercial pure titanium samples using electrophoretic method and the coating properties were investigated by surface evaluations and electrochemical tests (electrochemical impedance spectroscopy and cyclic voltammetry). Then, their electrocatalytic performance was evaluated using methylene blue pigment as a standard pollutant.
Results: Sn(Sb)O2 nanoparticles were successfully obtained by a hydrothermal method and their structure was confirmed by XRD, EDS and FTIR. Surface and coating thickness examinations by SEM showed the high quality of the electrophoretic coating.
Conclusion: The fabricated electrode showed 66 and 89% degradation efficiency in sodium sulfate and potassium chloride solutions containing 5 ppm methylene blue, respectively, within 2 hours.
کلیدواژه‌ها [English]
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