Improved piezo-assisted photocatalytic performance of Br-doped g-C3N4 toward organic dyes degradation
Year: 2025
Type: article
Abstract: Herein, bromine-doped graphitic-like carbon nitride (Br-doped g-C 3 N 4 ) have been synthesized for improved piezo-assisted photocatalytic decomposition of Congo red (CR) and Malachite Green Oxalate (MGO) dyes under sonication and visible illumination. Compared with the piezocatalysis and photocatalysis, the piezo-assisted photocatalytic decomposition process demonstrated higher performance, degrading 94.9 % and 87.6 % of MGO and CR, respectively within 120 min. The boosted visible-light absorption after Br doping coupled with the highly piezoelectric polarizability impact of the g-C 3 N 4 sample contributes to the high separation rates of the photogenerated carriers, thus enhancing the overall degradation productivity. The piezo-assisted photocatalytic decomposition mechanism has been deliberated, and approved by trapping tests. Moreover, the reusability experiments showed the outstanding stability of fabricated Br-doped g-C 3 N 4 after five consecutive rounds. Doping Br in g-C 3 N 4 provides a new strategy for constructing g-C 3 N 4 -based catalysts for synergistic piezophotocatalytic processes.
Source: Materials Letters
Authors: Duaa J. Kadhim, Saad H. Ammar
Institutions: Nahrain University, University of Warith Al-Anbiyaa
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,870
OpenAlex ID: W4408254494