Fig. 9: Investigation on the role of Na2CO3.
From: Coupling photocatalytic water oxidation with reductive transformations of organic molecules
a UV-Vis spectroscopy related to the produced H2O2 in the coupling of bromobenzene. Sample A (purple curve): 0.4 mmol/L aqueous solution of H2O2, Sample B (green curve): the produced H2O2 under standard conditions (no Na2CO3) in Fig. 5, Sample C (blue curve): the produced H2O2 under standard conditions in Fig. 5, a.u.: arbitrary units. b The H2O2 decomposition in the presence of additives. c Effect of the Na2CO3 loading on the ratio of \({{{{{{\rm{V}}}}}}}_{[{{{{{\rm{H}}}}}}]}\) to \({\bar{{{{{{\rm{V}}}}}}}}_{[{{{{{\rm{P}}}}}}{{{{{\rm{h}}}}}}]}\). PhBr: bromobenzene. [Ph]: intermediate regarding phenyl radical, [H]: intermediate regarding hydrogen radical. \({\bar{{{{{{\rm{V}}}}}}}}_{[{{{{{\rm{H}}}}}}]}\) and \({\bar{{{{{{\rm{V}}}}}}}}_{[{{{{{\rm{P}}}}}}{{{{{\rm{h}}}}}}]}\) represents the average rate of the [H] and [Ph] production in 4 h, respectively. Source data are provided as a Source Data file.
