Zeolite A and zeolite L monolayers modified with AgCl as photocatalyst for water oxidation to O2

Abstract

The appealing features of zeolite A and zeolite L tempted us to prepare zeolite monolayers on conducting surfaces like gold coated glass and gold foil. For the preparation of the monolayers, cubic crystals of zeolite A, disc-shaped and cylindrical crystals of zeolite L were used. The zeolites were linked to the gold surface by means of a thiolalkoxysilane as molecular linker. Afterwards, the monolayers were used as back support for AgCl, a photocatalyst used in water oxidation and water splitting experiments. All AgCl photoanodes modified with a zeolite monolayer on the back showed an increased water oxidation capability.