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Photocatalytic degradation of terephthalic acid using titania and zinc oxide photocatalysts: Comparative study.(Report)

Shafaei, Ashraf ; Nikazar, Manouchehr ; Arami, Mokhtar

Desalination, March, 2010, Vol.252(1-3), p.8(9) [Tạp chí có phản biện]

ISSN: 0011-9164

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  • Nhan đề:
    Photocatalytic degradation of terephthalic acid using titania and zinc oxide photocatalysts: Comparative study.(Report)
  • Tác giả: Shafaei, Ashraf ; Nikazar, Manouchehr ; Arami, Mokhtar
  • Chủ đề: Water Pollution Research -- Comparative Analysis ; Titanium Dioxide -- Comparative Analysis ; Liquid Chromatography -- Comparative Analysis ; Aliphatic Acids -- Comparative Analysis ; Terephthalic Acid -- Comparative Analysis ; Zinc Oxide -- Comparative Analysis
  • Là 1 phần của: Desalination, March, 2010, Vol.252(1-3), p.8(9)
  • Mô tả: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.desal.2009.11.008 Byline: Ashraf Shafaei (a), Manouchehr Nikazar (a), Mokhtar Arami (b) Keywords: Terephthalic acid; Photocatalytic oxidation; Kinetic; Nanoparticle; Titanium dioxide; Zinc oxide Abstract: In this paper, the photocatalytic degradation of terephthalic acid (TPA) using titania and zinc oxide nanoparticles was investigated. UV-Vis spectrophotometer and high performance liquid chromatography (HPLC) were used to study the TPA degradation. The effect of influential parameters such as initial pH, catalyst loading, initial TPA concentration and H.sub.2O.sub.2 were studied. It was found that the photocatalytic degradation of TPA obeyed the pseudo-first order kinetic reaction in the presence of both photocatalysts. The aliphatic carboxylic acids such as oxalic, formic, maleic, acetic and fumaric acids were detected by HPLC during the degradation of TPA. The results show that TiO.sub.2 and ZnO photocatalysts can be employed as an effective photocatalyst for the elimination of TPA from wastewater but in optimized conditions zinc oxide was a more efficient catalyst than TiO.sub.2. Author Affiliation: (a) Chemical Engineering Department, Amirkabir University, Hafez Ave, Tehran, Iran (b) Textile Engineering Department, Amirkabir University, Hafez Ave, Tehran, Iran Article History: Received 1 September 2009; Revised 5 November 2009; Accepted 6 November 2009
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0011-9164

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