A Novel Method for the Combined Photocatalytic Activity Determination and Bandgap Estimation.

摘要: The ability of a photocatalyst to degrade target pollutant is commonly used method assess its effectiveness for environmental applications, while ultraviolet-visible (UV-vis) spectroscopy and spectroscopic ellipsometry are conventional techniques the estimation semiconductor band gap. In this work, an array six light-emitting diodes (LEDs), characterized by different emission peaks between 470–370 nm absorbed power 3 W, was implemented into existing standard testing apparatus nitrogen oxides degradation in air. abatement indexes, obtained under LEDs irradiation, were firstly compared ones determined according and, secondly, correlated with measured LED spectrum, order estimate Results suggest that expeditious technique can be easily gap appraisal photocatalytic materials realistic conditions.