نوع مقاله : مقاله پژوهشی
نویسندگان
دانشکده مهندسی نساجی و پلیمر، دانشگاه آزاد اسلامی، واحد یزد، یزد، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this research, we are proposing carbon-ceramic electrodes containing TiO2 nanoparticles and MWCNT for the degradation of Reactive Blue 222 dyes by sonoelectrochemistry. In addition, an electrochemical nanosensor based on glass carbon electrode modified with graphene oxide and gold nanourchins was introduced to online determination of dye. Due to the special characteristics of nanoaddetive, the proposed nanosensor has unique features such as high surface area, accelerated electron transfer and high stability. The results of determination the Reactive Blue 222 dye in a concentration range of 25-900 μM with a detection limit 8 μM depict a good performance of the sensor for determined dye. The degradation process were optimized various factors affecting including the amount of potential difference, the amount of TiO2 nanoparticles, MWCNT and the solution pH by the statistical response surface method. At optimal conditions, including pH 0.8, potential difference 0.90 V on carbon ceramic electrode containing 0.2 wt% TiO2 and 3.89 wt% multiwall carbon nanotube during 120 min applying sonoelectrochemical degradation, 96% of 1.0 mM Reactive Blue 222 was degradaed and 88% of initial TOC value (121.33 ppm) was reduced.
کلیدواژه‌ها [English]
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