Back to Search
Start Over
Promoted spatial charge separation of plasmon Ag and co-catalyst CoxP decorated mesoporous g-C3N4 nanosheet assembly for unexpected solar-driven photocatalytic performance.
- Source :
- Nanotechnology; 11/29/2019, Vol. 30 Issue 48, p1-11, 11p
- Publication Year :
- 2019
-
Abstract
- Plasmon Ag and co-catalyst Co<subscript>x</subscript>P decorated mesoporous graphite carbon nitride nanosheet assemblies have been synthesized via a template-calcination and ball milling strategy combined with photoreduction. The obtained composites are characterized by x-ray diffraction, Fourier transmission infrared spectroscopy, x-ray photoelectron spectroscopy, transmission electron microscopy, and UV–vis diffuse reflectance spectroscopy. The results show that the sample assembly with mesoporous structure has specific surface area of 50.4 m<superscript>2</superscript> g<superscript>−1</superscript>, pore size of 11.3 nm and pore volume of 0.21 cm<superscript>3</superscript> g<superscript>−1</superscript>. The Ag and Co<subscript>x</subscript>P nanoparticles are decorated on the surface of graphite carbon nitride uniformly. Under solar light irradiation, the photocatalytic degradation rate of ceftazidime for the prepared sample assembly is up to ∼92%, and the photocatalytic reaction rate constant is about 10 times higher than that of bare graphite carbon nitride. Moreover, the sample assembly also exhibits a solar-driven photocatalytic hydrogen production rate of 96.66 μmol g<superscript>−1</superscript> h<superscript>−1</superscript>. It can attributed to the surface plasmon resonance effect of Ag nanoparticles and Co<subscript>x</subscript>P co-catalyst promoting the spatial charge separation and the mesoporous structure providing more surface active sites and favoring mass transfer. This special structure offers new insights for fabricating other high-performance photocatalysts with high spatial charge separation [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09574484
- Volume :
- 30
- Issue :
- 48
- Database :
- Complementary Index
- Journal :
- Nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 146086493
- Full Text :
- https://doi.org/10.1088/1361-6528/ab3dd9