Abstract
Herein, we present the bottom-up, mechanochemical synthesis of phosphorus-bridged heptazine-based carbon nitrides (g-h-PCN). The structure of these materials was determined through a combination of powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), 31P magic angle spinning nuclear magnetic resonance (MAS NMR), density functional theory (DFT) and electron energy loss spectroscopy (EELS). Compared to traditional furnace-based techniques, the presented method utilizes milder conditions, as well as shorter reaction times. Both samples of g-h-PCN directly after milling and aging and after an hour of annealing at 300 °C (g-h-PCN300) show a reduction in photoluminescent recombination, as well as a nearly two-time increase in photocurrent under broad spectrum irradiation, which are appealing properties for photocatalysis.
| Original language | English |
|---|---|
| Pages (from-to) | 1203-1209 |
| Journal | Beilstein Journal of Organic Chemistry |
| Volume | 18 |
| DOIs | |
| Publication status | Published - 12 Sept 2022 |
Bibliographical note
Funding:We are grateful for the support of the Natural Science and Engineering Research Council of Canada (NSERC) Discovery Grant and Discovery Accelerator Supplement, the Canada Foundation for Innovation (CFI), the McGill Sustainability Systems Initiative (MSSI), the Fonds de Recherche du Québec – Nature et Technologies (FRQNT) – Centre for Green Chemistry and Catalysis (CGCC), the Walter C. Sumner Memorial Fellowship (B. G. F.), McGill University and Université de Laval. This research was enabled in part by support provided by Calcul Québec (https://www.calculquebec.ca) and Compute Canada (https://www.computecanada.ca).