Preparation and catalytic properties of porous CoP nanoflakes via a low-temperature phosphidation route
| Autor: | Hao Wu, Dican Lu, Meifang Wang, Enhong Sheng, Yonghong Ni |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nanostructure Scanning electron microscope Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Chemical engineering Transmission electron microscopy Phase (matter) Nitro Rhodamine B General Materials Science 0210 nano-technology Porosity |
| Zdroj: | CrystEngComm. 18:5580-5587 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c6ce00635c |
| Popis: | In this paper, porous CoP nanoflakes were successfully synthesized through a two-step route. Porous Co3O4 nanoflakes were firstly prepared by pyrolyzing flake-like precursors. Then, porous CoP nanoflakes were produced through the low temperature phosphidation of porous Co3O4 nanoflakes. The phase and morphology of the as-prepared products were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive spectrometry (EDS). Experiments showed that the as-prepared porous CoP nanoflakes presented outstanding catalytic activity in the reduction of some aromatic nitro compounds such as 4-nitrophenol (4-NP), 2-nitrophenol (2-NP) and 4-nitroaniline (4-NA), and organic dyes including Rhodamine B, pyronine B, methylene blue and safranine T, in excess NaBH4 solution, which provided a new catalyst option for the reduction of aromatic nitro compounds and the decoloration of organic dyes at room temperature. Interestingly, the preparation approach of the precursor could affect the morphology and the catalytic performance of the final CoP nanostructures. |
| Databáze: | OpenAIRE |
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