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Evaluation and modeling of a newly designed impinging stream photoreactor equipped with a TiO2 coated fiberglass cloth
, Article RSC Advances ; Volume 5, Issue 12 , 2015 , Pages 9019-9027 ; 20462069 (ISSN) ; Mohammadi, M. M ; Sohrabi, M ; Royaee, S. J ; Sharif University of Technology
Royal Society of Chemistry
2015
Abstract
The photocatalytic degradation of p-nitrophenol (PNP) using TiO2 particles immobilized on a fiberglass cloth was investigated in a novel design of a photo-impinging stream reactor. A spray painted method has been used for the coating process. The structural properties of the immobilized sample were examined using X-ray diffraction and a scanning electron microscope (SEM). The photocatalytic degradation results showed the good performance of the reactor. The flow regime within the reactor was characterized and modeled by applying a liquid residence time distribution. A compartment model consisting of four continuous stirred regions was assigned to describe the flow pattern in the reactor. A...
Photocatalytic degradation of dibenzothiophene using La/PEG-modified TiO2 under visible light irradiation
, Article Research on Chemical Intermediates ; Jan , 2014 , pp. 1-17 ; Vossoughi, M ; Feilizadeh, M ; Zakeri, S. M. E ; Mohammadi, M. M ; Rashtchian, D ; Yoosefi Booshehri, A ; Sharif University of Technology
Abstract
While the photocatalytic degradation of various organic compounds under UV light irradiation has been widely investigated, visible-light-induced photocatalytic degradation of low levels of pollutants such as dibenzothiophene (DBT) is occasionally reported. In the present work, lanthanide/polyethylene glycol-modified TiO2 (La/PEG/TiO2) has been successfully synthesized by a sol-gel method. The photocatalyst was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV-Vis diffusive reflectance spectroscopy, and energy dispersive X-ray analysis. Moreover, the photocatalytic degradation of DBT under visible light irradiation is investigated for the...
Photocatalytic degradation of dibenzothiophene using La/PEG-modified TiO2 under visible light irradiation
,
Article
Research on Chemical Intermediates
;
Volume 41, Issue 7
,
July
,
2015
,
Pages 4151-4167
;
09226168 (ISSN)
; Vossoughi, M
; Feilizadeh, M
; Zakeri, S. M. E
; Mohammadi, M. M
; Rashtchian, D
; Yoosefi Booshehri, A
;
Sharif University of Technology
Kluwer Academic Publishers
2015
Abstract
While the photocatalytic degradation of various organic compounds under UV light irradiation has been widely investigated, visible-light-induced photocatalytic degradation of low levels of pollutants such as dibenzothiophene (DBT) is occasionally reported. In the present work, lanthanide/polyethylene glycol-modified TiO2 (La/PEG/TiO2 ) has been successfully synthesized by a sol-gel method. The photocatalyst was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV-Vis diffusive reflectance spectroscopy, and energy dispersive X-ray analysis. Moreover, the photocatalytic degradation of DBT under visible light irradiation is...