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RADIOLYSIS AND PHOTOLYSIS IN THE ADSORBED STATE
Author(s) -
ROJO ENRIQUE A.,
MOLINARI MARCELO A.
Publication year - 1968
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1968.tb08055.x
Subject(s) - chemistry , radiolysis , adsorption , irradiation , decomposition , photodissociation , photochemistry , physics , aqueous solution , organic chemistry , nuclear physics
— Simultaneous irradiation of gases or liquids adsorbed on high‐surface‐area solids of insulator or semiconductor properties frequently produces a considerable increase in radiolysis yields and selective effects in the distribution of products in comparison with those obtained by irradiation of pure substances. This kind of reaction is also sometimes observed when the solid is irradiated before adding the reactant. The results show that part of the energy absorbed by the solid is transferred by some mechanism to the adsorbate and is able to cause its decomposition. In the present paper some of the most representative experiments in the field are analyzed, with special attention on the interpretation of results and proposed reaction mechanisms. RESUMEN La irradiatión simultanea de gases o líquidos adsorbidos en sólidos de propiedades aisladoras o semi‐conductoras produce en la mayoría de los casos un considerable aumento de productos de radiólisis respecto a los producidos irradiando las substantias puras. Este tipo de reacciones también se produce a veces irradiando el sólido primero y agregando el reactante posteriormente. Estos resultados muestran que parte de la energía recibida por el sólido es trasmitida por algúsn mecanismo a la fase absorbida y empleada en la desd compositión del adsorbato. En el presente trabajo se analizan algunas de las experiencias realizadas y se discuten los resultados e interpretaciones. Se discuten asi mismo las posibilidades futuras en este campo.