Journal of Chemical Engineering & Process Technology
Open Access

Dorothy W Skaf

Publications

• Research Article
  The Effects of Photocatalyst and Solution Co-Contaminants on Photocatalytic Oxidation of 1,3- Dinitrobenzene in Aqueous Semiconductor Oxide Suspensions
  Author(s): Dorothy W Skaf, Amanda Grannas, Daniel Colotti and Eric BowesDorothy W Skaf, Amanda Grannas, Daniel Colotti and Eric Bowes
  
  Heterogeneous photocatalysis of 1,3-dinitrobenzene (DNB) using simulated solar irradiation in the presence of semiconductor oxides was studied. Comparison of TiO2 and ZnO showed that the former was a more efficient photocatalyst for the degradation of DNB. The addition of potential environmental co-contaminants such as acetic acid, fulvic acid and seawater salts to the DNB solutions all inhibited the DNB degradation rate. The addition of hydroxyl radical-generating compounds, including H2O2 and NaNO3, to the DNB solutions both slightly reduced the DNB degradation rate, indicating that hydroxyl radical generation is not a rate limiting step in the overall reaction process. The use of 5 volume % acetone cosolvent slowed the degradation rate, however for 15 volume % acetone despite the slower relative rate of destruction, the higher concentrations of DNB provided higher mass destruction .. View More»
  DOI: 10.4172/2157-7048.1000275

  Abstract PDF

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