Issue 20, 2024

Design of interfacial dual Schottky junctions to modulate charge transfer for enhanced piezo-assisted photocatalytic degradation RhB performances

Abstract

Regulating charge transfer is a great challenge for improving the efficiency of piezoelectric photocatalytic reactions. Herein, sandwich-like Bi2WO6@Ag/MXene nanoflower spheres (BWO@Ag/MXene) with piezoelectric/plasma dual characteristics were synthesized by a facile photoreduction method for photocatalytic applications. The charge migrations were driven by the built in polarization electric field and interfacial double Schottky junctions. The piezoelectric polarization electric field promoted the separation of photogenerated carriers, and the Schottky junctions boosted the interfacial charge transfer for the surface reactions. Moreover, the interface dual Schottky junction adjusted the bulk piezoelectric polarization field. The optimized BWO@Ag/MXene exhibited an amazing rate constant of up to 0.072 min−1 for the degradation of rhodamine B under co-excitation of ultrasonic and visible light (λ > 380 nm) irradiation, which was 3.5 times higher than that of the pristine BWO sample. Piezoelectric force microscopy and COMSOL simulation showed the potential distribution and charge migration within BWO@Ag/MXene. This work provides a promising strategy for modulating charge migration toward enhancing photocatalytic efficiency with the assistance of mechanic vibration.

Graphical abstract: Design of interfacial dual Schottky junctions to modulate charge transfer for enhanced piezo-assisted photocatalytic degradation RhB performances

Supplementary files

Article information

Article type
Paper
Submitted
27 Jan 2024
Accepted
12 Apr 2024
First published
16 Apr 2024

J. Mater. Chem. A, 2024,12, 12146-12154

Design of interfacial dual Schottky junctions to modulate charge transfer for enhanced piezo-assisted photocatalytic degradation RhB performances

X. Jiang, S. Sun, Y. Wang, L. Zhao, F. Huang and S. Li, J. Mater. Chem. A, 2024, 12, 12146 DOI: 10.1039/D4TA00619D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements