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The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
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Nitrogen dioxide removal and nitrous acid formation on titanium oxide surfaces--an air quality remediation process?

Maria Eugenia Monge1, Barbara D'Anna, Christian George

  • 1Université de Lyon, Lyon, F-69626, France.

Physical Chemistry Chemical Physics : PCCP
|June 15, 2010
PubMed

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Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
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