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Heterogeneous photocatalytic aqueous succinic acid formation from maleic acid reduction

  • Authors: Bellardita M.; Virtu D.; Di Franco F.; Loddo V.; Palmisano L.; Santamaria M.
  • Publication year: 2022
  • Type: Articolo in rivista
  • OA Link:


This study reports the anaerobic reduction of maleic acid to succinic acid in aqueous dispersion of different TiO2 based photocatalysts. Some home prepared and commercial solids containing different polymorphic phases of TiO2 and loaded with Pt and Ru were compared at different acidic pHs. The aim of the work was to verify the feasibility of the process and to determine the best samples and the optimal experimental conditions of the reaction. The best selectivity towards succinic acid was 23.2 % at 70 % of maleic acid conversion. Fumaric acid was also formed as another high added value compound, and its quantity was related to the experimental conditions and the photocatalyst used.