Constructing g-C₃N₄/Bi₂MoO₆ heterojunctions for efficient visible-light-driven RhB degradation.

Authors

Huihui Shi, Shiheng Xin, Shiping Li, Xiaoyang Wang, Xiong Zhang, Xuan Gao, Xinrui Cao, Jun Wang, Xie Huang, Fuchun Zhang, Xinghui Liu

Published in

RSC advances. Aug 07, 2026. Epub Aug 07, 2026.

Abstract

Single-component photocatalytic materials generally exhibit poor utilization of visible light and inefficient charge separation. To address these limitations, a series of g-C₃N₄/Bi₂MoO₆ heterojunction composites were fabricated via a facile stirring-assisted heating-evaporation method. Structural and spectroscopic characterization revealed intimate interfacial coupling between g-C₃N₄ and Bi₂MoO₆ accompanied by evident interfacial electronic interaction. Under visible-light irradiation, the 30% g-C₃N₄/Bi₂MoO₆ composite exhibited the highest catalytic activity toward Rhodamine B (RhB) degradation, with an apparent rate constant of 0.01922 min^-1. This rate constant was 4.14 and 7.09 times higher than those of pristine g-C₃N₄ and Bi₂MoO₆, respectively. Photoelectrochemical measurements further confirmed that the constructed heterojunction significantly accelerated charge-carrier kinetics and mobility while effectively suppressing electron-hole recombination. Radical-trapping experiments combined with band-structure analysis indicated that holes (h⁺) are the dominant active species for RhB oxidation, with ˙O₂ ^- serving as a secondary reactive species and ˙OH contributing only marginally. The enhanced photocatalytic activity arises from efficient interfacial charge separation and directional charge migration.

PMID:
42569033
Bibliographic data and abstract were imported from PubMed on 08 Aug 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.