کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1266251 972270 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synergistic degradation of methyl orange in an ultrasound intensified photocatalytic reactor
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synergistic degradation of methyl orange in an ultrasound intensified photocatalytic reactor
چکیده انگلیسی
An original ultrasound (US) directly intensified photocatalytic reactor was designed to degrade azo dye pollutant methyl orange (MeO) using Degussa TiO2 as the photocatalyst. The sonolytic, photocatalytic and sonophotocatalytic degradation of MeO in the new reactor and the synergistic effect between sonolysis and photocatalysis were investigated. Effects of operation parameters i.e., US power, TiO2 dosage, liquid circulation velocity and air flow rate on degradation efficiency were investigated and optimized. The results showed that all parameters have optimal values for the sonophotocatalytic degradation of MeO, and the optimum conditions for the new process are US power 600 W, TiO2 dosage 3 g/L, liquid circulation velocity 4.05 × 10−2 m/s and air flow rate 0.2 L/min. Under the optimum conditions, 91.52% MeO had been degraded within 1 h, and the combination of sonolysis and TiO2 photocatalysis exhibited an obvious synergetic effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 19, Issue 5, September 2012, Pages 1027-1032
نویسندگان
, , , , ,