Graphitic carbon nitride/SmFeO3 composite Z-scheme photocatalyst with high visible light activity - Université de Lorraine Access content directly
Conference Papers Year : 2023

Graphitic carbon nitride/SmFeO3 composite Z-scheme photocatalyst with high visible light activity

Abstract

Novel heterostructured photocatalysts associating graphitic carbon nitride (g-CN) and SmFeO3 were prepared via a mixing-ultrasonication process. Structural, optical and morphological characterizations demonstrate that the interfacial junction between g-CN and SmFeO3 is well established for all g-CN/SmFeO3 composites prepared with g-CN:SmFeO3 weight ratio of 20:80, 50:50 and 80:20. The g-CN/SmFeO3 (80:20) composite exhibits the highest photocatalytic activity for the degradation of pollutants like the Orange II dye and the tetracycline hydrochloride antibiotic under visible light irradiation. This high photocatalytic activity originates from the enhanced light absorption over the whole visible region compared to pure g-CN and from the improved separation and transfer of photogenerated electron/hole pairs as demonstrated by photoluminescence and photocurrent measurements. A Z- scheme charge carrier transfer mechanism was demonstrated for the photocatalytic reactions. The g-CN/SmFeO3 (80:20) catalyst was also demonstrated to be stable and can be reused up to six times without significant alteration of the activity.
No file

Dates and versions

hal-04038768 , version 1 (21-03-2023)

Identifiers

  • HAL Id : hal-04038768 , version 1

Cite

Bilel Chouchene, Thomas Gries, Balan Lavinia, Ghouti Medjahdi, Raphael Schneider. Graphitic carbon nitride/SmFeO3 composite Z-scheme photocatalyst with high visible light activity. C'Nano 2023, Mar 2023, Poitiers, France. ⟨hal-04038768⟩
21 View
0 Download

Share

Gmail Facebook X LinkedIn More