کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5144601 1496866 2017 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degradation of endocrine disruptor bisphenol A by ultrasound-assisted electrochemical oxidation in water
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Degradation of endocrine disruptor bisphenol A by ultrasound-assisted electrochemical oxidation in water
چکیده انگلیسی
In this study, the degradation of BPA by a sonoelectrochemical hybrid system was investigated, using a low frequency (24 kHz) ultrasound horn and two boron doped diamond electrodes. It was found that by the combination of the individual processes, i.e. ultrasound and electrochemical oxidation, more than 90% of BPA could be removed within 30 min at an initial concentration of 1 mg L−1. Moreover, synergistic effects were discovered and a considerable improvement compared to the individual processes could be achieved by using a potential of 5 V, whereas synergistic effects were absent at a potential of 10 V. This study provides investigation of ultrasound amplitude, potential and electrode positioning on BPA degradation. The reaction was found to follow pseudo first order kinetics with a rate constant of 0.089 min−1. Samples were analysed by high pressure liquid chromatography (HPLC) using a diode array detector. Moreover, the presence and distribution of hydroxyl radicals within the reactor was visualized by using sonochemiluminescence.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 39, November 2017, Pages 741-749
نویسندگان
, , , ,