کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
580042 | 1453148 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SnO2-based materials for pesticide degradation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
This study presents the results of the degradation of the pesticide atrazine using electrochemical and photo-assisted electrochemical degradation techniques using SnO2-containing electrode of nominal composition electrodes of composition Ti/RuXSn1âXO2 (where XÂ =Â 0.10, 0.15, 0.20, 0.25 and 0.30). The materials were characterized ex situ and in situ in order to correlate the observed atrazine removal rates with electrode morphology/composition. The results obtained demonstrate the effectiveness of the photo-assisted electrochemical degradation. Using purely electrochemical methods the rate of atrazine removal is almost zero at all the electrodes studied. However, the application of photo-assisted degradation results in almost complete atrazine removal in 1Â h of electrolysis. The efficiency of atrazine degradation does not seem to be greatly affected by the electrode material or by SnO2 content, but the overall COD removal is dependent on the SnO2 content. Overall, the SnO2-containing electrodes do not reach the level of COD removal (maximum â¼21%) seen for the Ti/Ru0.3Ti0.7O2 electrode. An interesting correlation between the morphology factor (Ï) and chemical oxygen demand removal is observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 180, Issues 1â3, 15 August 2010, Pages 145-151
Journal: Journal of Hazardous Materials - Volume 180, Issues 1â3, 15 August 2010, Pages 145-151
نویسندگان
Geoffroy R.P. Malpass, Douglas W. Miwa, Sérgio A.S. Machado, Artur J. Motheo,