Photocatalytic oxidation of aqueous ammonia (ammonium ion) to nitrite or nitrate at TiO2 particles

@article{Pollema1992PhotocatalyticOO,
  title={Photocatalytic oxidation of aqueous ammonia (ammonium ion) to nitrite or nitrate at TiO2 particles},
  author={Cy H. Pollema and Emil B. Milosavljevi{\'c} and James L. Hendrix and Ljiljana Soluji{\'c} and John H. Nelson},
  journal={Monatshefte f{\"u}r Chemie / Chemical Monthly},
  year={1992},
  volume={123},
  pages={333-339}
}
SummaryThe photocatalytic oxidation of ammonia (ammonium ion) in the presence of air or pure oxygen at titanium(IV) oxide powder surfaces and induced by UV light was investigated. Experimental conditions were varied and the effect ofpH, sparging gas, as well as the concentration of both ammonia (ammonium ion) and photocatalyst were investigated. It has been established that the principal product of photocatalytic oxidation depends onpH, and is either nitrite or nitrate. A gas-diffusion flow… 

Photocatalytic Oxidation of Aqueous Ammonia (Ammonium Ion) to Nitrite or Nitrate at TiO2 Particles.

The photocatalytic oxidation of ammonia (ammonium ion) in the presence of air or pure oxygen at titanium(IV) oxide powder surfaces and induced by UV light was investigated. Experimental conditions

Photocatalytic degradation of high ammonia concentration water solutions by TiO2.

TLDR
A kinetic study of photo oxidation over TiO2 of NH3/NH4 in the high concentration range of 26 - 214 mg/I, has shown that the photo catalytic oxidation of ammonia can be described with the Langumuir- Hinshelwood kinetic model, as reported by several authors.

Photocatalytic Selective Oxidation of Ammonia in a Semi-Batch Reactor: Unravelling the Effect of Reaction Conditions and Metal Co-Catalysts

Photocatalysis has been used for the oxidation of ammonia/ammonium in water. A semibatch photoreactor was developed for this purpose, and nanostructured TiO2-based materials, either commercial P25 or

Photo-Oxidation of Ammonia to Molecular Nitrogen in Water under UV, Vis and Sunlight Irradiation

Titanium dioxide-based photocatalysts have been used to perform the photo-oxidation of ammonium/ammonia to molecular nitrogen. Different light sources were employed, i.e., UV, LED visible light and

Heterogeneous photocatalytic reduction of Fe(VI) in UV-irradiated titania suspensions: effect of ammonia

Results of the heterogeneous photocatalytic reduction of Fe(VI) in UV-irradiated TiO2 suspensions in the presence of ammonia are presented. The initial rate of Fe(VI) reduction, R, may be expressed

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