| Title |
Enhancing deep visible-light photoelectrocatalysis with a single solid-state synthesis: Carbon nitride/TiO2 heterointerface |
| ID_Doc |
7849 |
| Authors |
Silva, IF; Pulignani, C; Odutola, J; Galushchinskiy, A; Texeira, IF; Isaacs, M; Mesa, CA; Scoppola, E; These, A; Badamdorj, B; Muñoz-Márquez, MA; Zizak, I; Palgrave, R; Tarakina, NV; Gimenez, S; Brabec, C; Bachmann, J; Cortes, E; Tkachenko, N; Savateev, O; Jiménez-Calvo, P |
| Title |
Enhancing deep visible-light photoelectrocatalysis with a single solid-state synthesis: Carbon nitride/TiO2 heterointerface |
| Year |
2025 |
| Published |
|
| DOI |
10.1016/j.jcis.2024.09.028 |
| Abstract |
Visible-light responsive, stable, and abundant absorbers are required for the rapid integration of green, clean, and renewable technologies in a circular economy. Photoactive solid-solid heterojunctions enable multiple charge pathways, inhibiting recombination through efficient charge transfer across the interface. This study spotlights the physico-chemical synergy between titanium dioxide (TiO2) anatase and carbon nitride (CN) to form a hybrid material. The CN(10%)-TiO2(90%) hybrid outperforms TiO2 and CN references and literature homologs in four photo and photoelectrocatalytic reactions. CN-TiO2 achieved a four-fold increase in benzylamine conversion, with photooxidation conversion rates of 51, 97, and 100 % at 625, 535, and 465 nm, respectively. The associated energy transfer mechanism was elucidated. In photoelectrochemistry, CN-TiO2 exhibited 23 % photoactivity of the full-spectrum measurement when using a 410 nm filter. Our findings demonstrate that CN-TiO2 displayed a band gap of 2.9 eV, evidencing TiO2 photosensitization attributed to enhanced charge transfer at the heterointerface boundaries via staggered heterojunction type II. |
| Author Keywords |
TiO2 sensitization; Heterointerface; CN-TiO2 composite; Benzylamine photooxidation; Hydrogen production |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001312570100001 |
| WoS Category |
Chemistry, Physical |
| Research Area |
Chemistry |
| PDF |
https://doi.org/10.1016/j.jcis.2024.09.028
|