Low-cost test rig for characterization of photocatalytic planar materials using photonically sized UV-A LED light sources.

ABSTRACT: In the presented studies, a system for the characterization of planar photocatalysts was developed and tested. In the system, reference substances can be studied online with regard to their degradability and adsorption on photocatalytic materials. In order to perform accurate calculations of the quantum and photon efficiency of the catalysts, the LED arrays used were adjusted in their spacing by simulations so that a homogeneous light field is imaged on the catalysts. The system was tested with respect to measurement accuracy and reproducibility and the photocatalytic degradation of methylene blue, methyl orange and rhodamine B was investigated. Exemplarily, the reaction kinetics, photolysis and adsorption on the tested photocatalysts were determined for these compounds and the calculation

SUBMITTER: Schnabel T 

PROVIDER: S-EPMC10663667 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature