Surface reactivities of polynuclear aromatic adsorbates on alumina and silica particles using infrared photoacoustic spectroscopy

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00281a022· OSTI ID:5524873

Saucy, D A; Cabaniss, G E; Linton, R W

Infrared photoacoustic spectra were obtained from organic films on inorganic particulate adsorbents. Under favorable conditions, including strong absorption bands and high surface area silica and alumina substrates, the detection sensitivity of photoacoustic spectroscopy is estimated to be 0.2 monolayers of an adsorbed organic compound. Because of the molecular information provided by IR spectroscopy, reactions of adsorbed organic compounds may be examined in situ. Examples shown involve photochemical reactions of sorbed polynuclear aromatic compounds that are potentially important in the atmospheric chemistry of combustion generated aerosols. 21 references, 7 figures.

• Research Organization: Univ. of North Carolina, Chapel Hill
• OSTI ID: 5524873
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 57:4; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATION ENERGY
ADSORBENTS
ADSORPTION
AEROSOLS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
COLLOIDS
COMBUSTION PRODUCTS
DATA
DISPERSIONS
ENERGY
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
INFRARED SPECTRA
MINERALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOTOACOUSTIC SPECTROSCOPY
PHOTOCHEMICAL REACTIONS
POLYCYCLIC AROMATIC HYDROCARBONS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLS
SORPTION
SPECTRA
SPECTROSCOPY
SURFACE PROPERTIES