Photocatalytically induced fixation of molecular nitrogen by near UV radiation

  title={Photocatalytically induced fixation of molecular nitrogen by near UV radiation},
  author={Roger I. Bickley and Venkataraman Vishwanathan},
A MAJOR method whereby molecular nitrogen is fixed in the soil is through microorganisms1. Recently, however, molecular nitrogen has been shown2 to react with water vapour in the presence of TiO2 under the stimulus of near UV radiation to produce ammonia and hydrazine according to the photoreducing reactions summarised as: We report here the results of some recent experiments in which molecular nitrogen has been fixed, at room temperaure in oxidising conditions, on the surface of rutile (TiO2… 


Photoexcitation of titanium dioxide produces reactive centers capable of reducing and possibly oxidizing chemisorbed nitrogen. Activity of the photocatalysts is significantly dependent on the source

Photocatalytic fixation of nitrogen by aqueous suspensions of silver iodide

The photodecomposition of AgI is but one of the many transformations which natural, anthropogenic and artificial aerosols undergo under light. Our aim here is to show that UV photolysis of AgI is

Identification of the fixed nitrogen containing species during the photo‐oxidative fixation of molecular nitrogen on UV‐illuminated TiO2 surfaces

Ultraviolet photoexcitation of hydroxylated TiO 2 surfaces in the presence of a mixture on N 2 /O 2 gas (air) produces some adsorbed nitrogen oxide species which were previously assigned indirectly

Photoreduction of Nitrogen on TiO2 and TiO2-Containing Minerals

A report appearing in 1975 demonstrated that incompletely out-gassed, powdered titanium dioxide photo-reduces acetylene to ethylene and prompted attempts to achieve the photoreduction of molecular

Probing Photocatalytic Nitrogen Reduction to Ammonia with Water on the Rutile TiO2 (110) Surface by First-Principles Calculations

Photocatalytic ammonia production from air and water at ambient conditions is ideally suited for artificial nitrogen fixation. It has been the subject of several recent experimental studies with

Heterogeneous Photocatalytic Oxidation of Diphenylmethane on TiO2 Powder

Benzophenone is produced in the photocatalytic oxidation of diphenylmethane in an oxygen saturated TiO2 suspension. The yield is found to increase with increasing solvent polarity. An electron

Photoassisted Dinitrogen Fixation on TiO 2 (Rutile) Surfaces

The ability of TiO2 (rutile) surfaces which contain pre-adsorbed peroxide to fix molecular nitrogen oxidatively, has been reported previously by Bickley et al. (1). In a recent work (2) we have shown



Reactions on titanium dioxide: The photo‐oxidation of ammonia

The adsorption at room temperature of small amounts of ammonia on precipitated titanium dioxide was accompanied by the release of water in unit molecular ratio. When titanium dioxide films were

Photolysis of water and photoreduction of nitrogen on titanium dioxide

The photolysis of chemisorbed water on incompletely outgassed TiO/sub 2/ powder yields H/sub 2/ and O/sub 2/ in the molar ratio of 2 : 1 if conducted under argon. In the presence of molecular

Electron paramagnetic resonance investigation of oxygen photoadsorption and its reactivity with carbon monoxide on titanium dioxide: the O3–3 species

Oxygen absorbed on TiO2 when subjected to u.v. irradiation gives rise to three different paramagnetic species. The first species, A, has been identified as O–2(g1= 2.021, g2= 2.009 and g3= 2.001 and

‘Comprehensive’ Inorganic Chemistry

Comprehensive Inorganic ChemistryBy Prof. M. Cannon Sneed and Prof. Robert C. Brasted. Vol. 5: Nitrogen, Phosphorus, Arsenic, Antimony, and Bismuth. By Harry H. Sisler. Nonaqueous Chemistry. By