Colorful Silver/Carbon Nitride Composites Obtained by Photoreduction
| Autor: | Peng Meng, Jingsan Xu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Graphitic carbon nitride 02 engineering and technology General Chemistry Chromophore 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Corrosion chemistry.chemical_compound chemistry Photocatalysis Chemical stability Particle size Composite material 0210 nano-technology Melamine Carbon nitride |
| Zdroj: | Chemical Research in Chinese Universities. 36:1136-1140 |
| ISSN: | 2210-3171 1005-9040 |
| Popis: | The Ag+ photoreduction by graphitic carbon nitride(g-CN) materials in a high concentration of Ag+ solution is reported, and a series of colorful Ag/g-CN composites is prepared and characterized. The chromatic change correlates to the carbon nitride materials synthesized at different heating temperatures(CNT, where T means heating temperature), taking advantage of the different photocatalytic activities of different CNT. The mechanism beneath this phenomenon is attributed to two factors: the particle size of Ag NPs and the coordinate effect of Ag NPs on CNT sheets. Interestingly, the multicolors of Ag/g-CN composites display only on the CNT materials synthesized from heating melamine-cyanuric acid precursor, but not on the CNT from heating pure melamine. The color of the as-prepared Ag/g-CN composites can endure the corrosion of HNO3 and ethanol, which shows a good chemical stability and may hint its application as chromophores. |
| Databáze: | OpenAIRE |
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