Can photoluminescence be linked to photocatalytic activity?
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Photoluminescence can be linked to photocatalytic activity. The presence of defects or impurity states in materials can result in visible emissions during photoluminescence, which can be indicative of the photocatalytic activity . Additionally, time-resolved photoluminescence (TRPL) and time-integrated photoluminescence (TIPL) spectroscopy can provide information about the lifetime and intensity of photoluminescence emissions, respectively. In the case of graphite-ZnO composites, TRPL and TIPL spectroscopy revealed longer lifetimes and more intense UV emissions, respectively, compared to pure ZnO, indicating enhanced photocatalytic activity . Similarly, the presence of emission peaks in the blue region for CeO2 nanocrystals synthesized in acetone and a strong orange-red emission for those synthesized in ethanol suggest different defect states that can influence the photocatalytic properties . Therefore, photoluminescence measurements can provide valuable insights into the photocatalytic activity of materials.
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| Papers (5) | Insight |
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| Yes, the paper states that the photoluminescence properties provide information about the presence of defects or impurities and the efficiency of charge carrier recombination, which can be linked to the photocatalytic activity. | |
| Yes, the paper states that the presence of Eu3+ ions in ZnO/SnO2 enhances the photocatalytic efficiency by facilitating the formation of Z-scheme heterojunctions, which delays the recombination rate of photoinduced electron/hole pairs. | |
| Yes, the paper states that the photoluminescence performance of the carbon quantum dots (CQDs) is linked to their photocatalytic activity in degrading organic dyes. | |
| Yes, the paper shows evidence that photoluminescence is linked to enhanced photocatalytic activity in mechanically activated graphite-zinc oxide composites. | |
| The paper provides evidence that the photoluminescence emissions of CeO2 nanocrystals are linked to their photocatalytic activity. |
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