Silica sol-gels were doped with free-base meso-tetrakis(4-carboxyphenyl) porphyrin (H2TCPP), meso-tetrakis(4-hydroxyphenyl)-porphyrin (H2THPP), and an iron(III) chloride porphyrin (H2Fe(III)TPPCl) during the polycondensation process. The integrity and functionality of the porphyrins were tested by exposing the sol-gels to acidic and basic conditions. Absorption spectroscopy of the silica sol-gel materials showed that the immobilized porphyrins maintained their intrinsic properties and no aggregation was observed at the tested porphyrin concentrations. This presentation will highlight the experimental design and results.

Immobilization of porphyrins in sol-gel matrices

255th National Meeting (2018)

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