Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

Md Ali Asraf, Chizoba I. Ezugwu, C. M. Zakaria, Francis Verpoort

Research output: Contribution to journalArticle


The development of water oxidation catalysts based on Earth-abundant metals that can function at neutral pH remains a basic chemical challenge. Here, we report that salophen complexes with Ni(ii), Cu(ii), and Mn(ii) can catalyse photochemical water oxidation to molecular oxygen in the presence of [Ru(bpy)3]2+ as a photosensitizer and Na2S2O8 as an oxidant in phosphate buffer of pH 7.0. Experimental results including CV, SEM, EDS, ESI-MS, and DLS measurements on the metal salophen complex-catalysed water oxidation to oxygen suggest that the catalytic activity of the catalysts is molecular in origin.

Original languageEnglish
Pages (from-to)2782-2791
Number of pages10
JournalPhotochemical and Photobiological Sciences
Issue number11
Publication statusPublished - 1 Jan 2019


ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this