Study on K2Ti4O9 modified by Fe3+ cations in visible-light photocatalysis

K2Ti4O9, a photocatalyst lacks the response to visible light. This short article takes advantage of the ion exchange properties of K2Ti4O9 and Fe3+ cations that are intercalated to enhance photocatalysis by responding to visible light. The degradation of MB (methylene blue) by K2Ti4O9 treated with different Fe3+ cations amounts was studied, the optimal treatment concentration was determined and the photocatalytic performance was evaluated. The structure, morphology, and energy band characteristics of the photocatalyst were confirmed by XRD, SEM, XPS, UV-vis, PL, and electrochemical workstation.

Automated summary

This study aims to enhance the photocatalytic performance of K2Ti4O9 by intercalating Fe3+ cations, allowing it to respond to visible light. The degradation of MB by K2Ti4O9 treated with different concentrations of Fe3+ cations was studied to determine the optimal treatment concentration and evaluate the photocatalytic performance. The structure, morphology and energy band characteristics of the photocatalyst were confirmed using XRD, SEM, XPS, UV-vis, PL, and an electrochemical workstation.