Gas-phase photooxidation of trichloroethylene on TiO2 and ZnO: influence of trichloroethylene pressure, oxygen pressure, and the photocatalyst surface on the product distribution
Article Abstract:
Experiments were conducted to investigate the distribution and mechanism regulating the gas-phase photooxidation of trichloroethylene (TCE) adsorbed on TiO2 and ZnO. Fourier transform spectroscopic analyses were performed on the TCE. Molecular oxygen in both samples proved to be efficient in inducing photooxidation of the TCE using light at wavelengths at a range of 300-390 nanometers. The photooxidation of TCE was dependent on the surface area of the TiO2 and ZnO. Moreover, the production of gas products from TCE was largely influenced by varying reaction conditions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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CO adsorption as a probe of acid sites and the electric field in alkaline earth exchanged zeolite beta using FT-IR and ab initio quantum calculations
Article Abstract:
A study was conducted on the electric field present in alkaline earth exchanged beta using carbon as a probe. The spectra obtained from the Fourier transform infrared spectroscopy tests on CO adsorbed on Ba-beta, Sr-beta, Ca-beta, and Mg-beta suggested the presence of several different adsorption sites. To determine the effect of different alkaline earth cations on the calculated vibrational frequencies for the model compound M(OH)2-CO, quantum chemical ab initio calculations were used.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Photooxidation of toluene and p-xylene in cation-exchanged zeolites X, Y, ZSM-5, and beta: the role of zeolite physiochemical properties in product yield and selectivity
Article Abstract:
The photooxidation of toluene and p-xylene with molecular oxygen and visible light is investigated in several cation-exchanged zeolites. The electric field strength, the presence of Bronsted acid sites, and other physicochemical properties that affect yield and selectivity in these photooxidation reactions are explored.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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