Toward Standardized Photocatalytic Oxygen Evolution Rates Using RuO₂@TiO₂ as a Benchmark.

ABSTRACT: Quantitative comparison of photocatalytic performances across different photocatalysis setups is technically challenging. Here, we combine the concepts of relative and optimal photonic efficiencies to normalize activities with an internal benchmark material, RuO₂ photodeposited on a P25-TiO₂ photocatalyst, which was optimized for reproducibility of the oxygen evolution reaction (OER). Additionally, a general set of good practices was identified to ensure reliable quantification of photocatalytic OER, including photoreactor design, photocatalyst dispersion, and control of parasitic reactions caused by the sacrificial electron acceptor. Moreover, a method combining optical modeling and measurements was proposed to quantify the benchmark absorbed and scattered light (7.6

SUBMITTER: Vignolo-Gonzalez HA 

PROVIDER: S-EPMC7418450 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature