https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Promoting visible-light photocatalytic activities for carbon nitride based 0D/2D/2D hybrid system: beyond the conventional 4-electron mechanism https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43207 Wed 14 Sep 2022 11:53:42 AEST ]]> Photocatalytic solar fuel production and environmental remediation through experimental and DFT based research on CdSe-QDs-coupled P-doped-g-C₃N₄ composites https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46323 3N4 (P-CN) for advanced photocatalytic applications. Phosphorus doping and structural coupling with CdSe QDs are shown to significantly extend visible-light response of g-C3N4 up to 700 nm. The optimized sample 4CdSe/P-CN demonstrates enhanced visible-light driven overall water splitting activities for H2 and O2 evolution i.e. 113 and 55.5 μmol.h−1.g−1, respectively, as well as very high photocatalytic CO2 to CH4 conversion efficiency (47 μmol.h−1.g−1). It also exhibit higher activity (78 %) for 2,4-dichlorophenol degradation as compared to pristine CN-sample. Combined photoluminescence, transient/single wavelength photocurrent, photoelectrochemical, and coumarin fluorescence spectroscopy demonstrate that 4CdSe/P-CN nanocomposite exhibit enhanced charge separation efficiency which is responsible for improved visible light catalytic activities. Our work thus provide a new strategy to design low-cost and sustainable photocatalysis with wide visible-light activity for practical overall water splitting and CO2 reduction applications.]]> Mon 29 Jan 2024 17:44:21 AEDT ]]>