کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
151177 456464 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effective degradation of acid orange 10 by catalytic ozonation in the presence of Au-Bi2O3 nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effective degradation of acid orange 10 by catalytic ozonation in the presence of Au-Bi2O3 nanoparticles
چکیده انگلیسی

In this study, the catalytic ozonation of acid orange 10 (AO-10) in the presence of Au-Bi2O3/Bi2O3 nanocatalysts is investigated. The influence of various effects of the synthetic procedure is evaluated by preparing the Bi2O3 and Au-Bi2O3 catalysts in two different routes. The nanomaterials are characterized through various analytical tools like X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy. Addition of sonochemically synthesized Bi2O3 and gold nanoparticles loaded sonochemically synthesized Bi2O3 catalysts on ozone assisted catalytic degradation of AO-10 show 1.8- and 3.5-fold enhancement in the degradation rate, respectively. Bi2O3 and gold loaded Bi2O3 samples prepared by sonochemical method provide effective environment for the degradation of AO-10. The total organic carbon (TOC) removal studies performed to understand the mineralization of AO-10 in the presence of various catalysts show that, about 47% AO-10 can be completely abated in 30 min by ozonation in the presence of sonochemically prepared Bi2O3 doped with gold nanoparticles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 168, Issue 3, 15 April 2011, Pages 1227–1233
نویسندگان
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