Related Experiment Video
Updated: Sep 15, 2025
A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019
Constructing bismuthene/Bi₄Ti₃O₁₂ heterojunctions via in-situ growth for enhanced visible-light photocatalytic
Xiqing Liu1, Tao Wang1, Meiqi Long2
1Jingdezhen Ceramic University, School of Materials Science and Engineering, Jingdezhen 333403, People's Republic of China; Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333403, People's Republic of China.
Abstract:
The epitaxial growth method for constructing lattice-matched heterojunctions represented an ideal strategy for enhancing carrier migration. In the context of Bi4Ti3O12 (BIT), its photocatalytic performance has been limited by inadequate light absorption and rapid carrier recombination. To address these challenges, this study employed epitaxial growth to load bismuthene, known for its excellent conductivity and lattice matching, onto the surface of BIT. Bismuthene serves as electron trapping sites, facilitating electron transfer and effectively promoting carrier separation. This design significantly improved photocatalytic degradation performance, with the optimal bismuthene/BIT (Bi-ene/BIT) composite exhibiting a performance 1.6 times higher than that of pure BIT. Furthermore, the photocatalytic mechanism was elucidated through analyses of the band gap, trapping experiments, and electron spin resonance (ESR) studies. This work demonstrates the potential of the epitaxial growth method for constructing lattice-matched heterojunctions, thereby advancing the field of photocatalysis.
