BibTex format
@article{Itskou:2025:10.1021/acsmaterialsau.5c00007,
author = {Itskou, I and Sageer, SC and Dawson, DM and Kafizas, A and Nevjestic, I and McGilvery, CM and Daboczi, M and Kerherve, G and Eslava, S and Heutz, S and Ashbrook, SE and Petit, C},
doi = {10.1021/acsmaterialsau.5c00007},
journal = {ACS Materials Au},
pages = {656--674},
title = {Boron-functionalized graphitic carbon nitride materials for photocatalytic applications: effects on chemical, adsorptive, optoelectronic, and photocatalytic properties},
url = {http://dx.doi.org/10.1021/acsmaterialsau.5c00007},
volume = {5},
year = {2025}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Graphitic carbon nitride (gC3N4, or CN herein) is widely studied as a photocatalyst owing to its ease of synthesis, high stability, and optoelectronic properties. However, its photocatalytic performance often remains limited, and a common approach to tune its function and enhance its performance is by doping. Boron (B) functionalization of CN has showed a potential benefit on photocatalytic performance for several reactions. However, the reason for this improvement and the links between synthesis method, exact B chemical environment, and performance remain unclear. Here, we present a fundamental study that elucidates the influence of (i) B functionalization, (ii) B content, and (iii) choice of B precursor on the physicochemical, adsorptive, optoelectronic, and photocatalytic properties of bulk B-CN. We synthesized two sets of B-CN materials (0.5–11 at% B), using either elemental boron or boric acid as precursors. The samples were characterized using several imaging and spectroscopic techniques, which confirm the integration of B into the material through B–O bonding and the creation of B clusters in the case of the boron precursor, with density functional theory (DFT) calculations supporting our analyses. The distribution of B atoms within B-CN particles remained heterogeneous. Compared to CN, B-functionalized materials show enhanced porosity and CO2 uptake, with similar degrees of light absorption and deeper energy band positions. Transient absorption spectroscopy (TAS) measurements showed that charge carrier populations, lifetimes, and kinetics were not significantly affected by B functionalization; however, at 5 at% B doping, an increase in the concentration of charge carriers was seen. Higher B content enhances the photocatalytic NOx removal under UVA irradiation (almost two-fold) and the selectivity to NO3– from NOx photooxidation, but has no significant effect on CO2 photoreduction, compared to pristine CN. Overall, this study provides fundam
AU - Itskou,I
AU - Sageer,SC
AU - Dawson,DM
AU - Kafizas,A
AU - Nevjestic,I
AU - McGilvery,CM
AU - Daboczi,M
AU - Kerherve,G
AU - Eslava,S
AU - Heutz,S
AU - Ashbrook,SE
AU - Petit,C
DO - 10.1021/acsmaterialsau.5c00007
EP - 674
PY - 2025///
SN - 2694-2461
SP - 656
TI - Boron-functionalized graphitic carbon nitride materials for photocatalytic applications: effects on chemical, adsorptive, optoelectronic, and photocatalytic properties
T2 - ACS Materials Au
UR - http://dx.doi.org/10.1021/acsmaterialsau.5c00007
UR - https://pubs.acs.org/doi/10.1021/acsmaterialsau.5c00007
VL - 5
ER -