Abstract
THE photo-darkening of titanium dioxide–silver compound mixtures has been observed by Förland1 and Goetz and Inn2 among others. Förland attributed the discoloration to the oxidation of the silver ion to AgO, though Goetz and Inn claimed that it was due to the reduction of the silver ion to metallic silver.
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References
Förland, K. S., Intern. Symp. Reactivity of Solids (Gothenburg, 1952).
Goetz, A., and Inn, E. C. Y., Rev. Mod. Phys., 20, 131 (1948).
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CLARK, W., VONDJIDIS, A. Changes in Titanium Dioxide–Silver Nitrate Mixtures after Ultra-violet Irradiation. Nature 203, 635–636 (1964). https://doi.org/10.1038/203635b0
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DOI: https://doi.org/10.1038/203635b0
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