کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1250882 1496039 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photodegradation of imazethapyr herbicide by using slurry and supported TiO2: Efficiency comparison
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Photodegradation of imazethapyr herbicide by using slurry and supported TiO2: Efficiency comparison
چکیده انگلیسی

Kinetic photodegradation of imazethapyr, a herbicide from imidazolinone class of pesticides, has been investigated in aqueous solution using slurry titanium dioxide (TiO2) and supported on Ahlstrom paper (flexible photocatalytic support). Two types of TiO2 e.g., Millennium PC500 (100% anatase) and Degussa P25 (80% anatase, 20% rutile) were used. Experiments were investigated to evaluate the effect of the adsorption, initial concentrations of the pesticide as well as catalyst doses on the photocatalytic degradation of imazethapyr. Kinetic parameters were experimentally determined and a half-order kinetic was observed. Regarding Langmuir–Hinshelwood model, the kinetic of the imazethapyr degradation was more efficient at higher pesticide concentrations and catalyst doses. Accordingly, Degussa P25 shows higher photocatalytic activity in regard to PC500 Millennium.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 8, Issue 2, March 2015, Pages 181–185
نویسندگان
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