Loading...

Evaluation and modeling of a newly designed impinging stream photoreactor equipped with a TiO2 coated fiberglass cloth

Jafarikojour, M ; Sharif University of Technology | 2015

1025 Viewed
  1. Type of Document: Article
  2. DOI: 10.1039/c4ra13670e
  3. Publisher: Royal Society of Chemistry , 2015
  4. Abstract:
  5. 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 Langmuir-Hinshelwood kinetic scheme has been used to describe the degradation of p-nitrophenol and to examine the behavior of the reaction system. A comparison between the sum of the square errors of the experimental results and those predicted by the model for PNP degradation revealed that a good agreement exists between the two sets of data
  6. Keywords:
  7. Flow patterns ; Glass fibers ; Phenols ; Scanning electron microscopy ; Titanium dioxide ; X ray diffraction ; Coating process ; Compartment model ; Impinging stream ; Langmuir-Hinshelwood kinetics ; Photo catalytic degradation ; Photo-impinging ; Photocatalytic degradation of p-nitrophenol ; Reaction system ; Residence time distribution
  8. Source: RSC Advances ; Volume 5, Issue 12 , 2015 , Pages 9019-9027 ; 20462069 (ISSN)
  9. URL: http://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C4RA13670E#!divAbstract