کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6586894 | 456412 | 2013 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synergistic effect of bifunctional Co-TiO2 catalyst on degradation of Rhodamine B: Fenton-photo hybrid process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The synergistic effect of two different advanced oxidation technologies, heterogeneous sulfate radical based Fenton and TiO2 photocatalysis, was observed through a drastic enhancement of Rhodamine B removal in Co-TiO2/Oxone/Photo process. Our catalysts were obtained by a citric acid-assisted sol-gel method and Rhodmine B was used as model organic pollutant. The cobalt species in Co-TiO2 play a crucial role of integration Fenton with TiO2 photocatalysis in one heterogeneous hybrid system that not only active Oxone to produce SO4-, but also enhance the photocatalytic activity of TiO2 as well as extend its absorption spectrum to visible region, thus it can be defined as a type of bifunctional catalyst. The influence of the pH, [Oxone]/[RhB] molar ratio and catalyst concentration of the catalytic performance were investigated. The Rhodamine B can be eliminated 100% and TOC removal of solution can reach 68% at the optimum conditions by Photo/Co-TiO2/Oxone process. Moreover, the catalyst was demonstrated to have good stability and reusability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 229, 1 August 2013, Pages 57-65
Journal: Chemical Engineering Journal - Volume 229, 1 August 2013, Pages 57-65
نویسندگان
Qingkong Chen, Fangying Ji, Tingyi Liu, Peng Yan, Wei Guan, Xuan Xu,