Fly ash to solid base catalyst: Synthesis, characterization and catalytic application
| Autor: | Sakshi Kabra, Stuti Katara, Ashu Rani, Renu Hada, Deepti Goyal, Anita Sharma |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Municipal solid waste Base (chemistry) Precipitation (chemistry) Condensation 02 engineering and technology General Medicine 021001 nanoscience & nanotechnology 01 natural sciences Catalysis chemistry.chemical_compound chemistry Chemical engineering Fly ash 0103 physical sciences Fourier transform infrared spectroscopy 0210 nano-technology Acetophenone |
| Zdroj: | Materials Today: Proceedings. 42:1409-1416 |
| ISSN: | 2214-7853 |
| Popis: | This paper reports precipitation of silica from fly ash and then its utilization in synthesis of silica supported base catalyst. All samples were characterized by N2 adsorption–desorption, TGA, FTIR, XRD, SEM, SEM-EDX, TEM and Hammett indicator method. The results reveal that basic sites and thus catalytic performance has improved after activations which was evaluated by Claisen-Schmidt condensation of 4-methylbenzaldehyde with acetophenone. The catalyst can be reused up to four reaction cycles with almost equal efficiency. The work reports a novel application of abundant, siliceous solid waste fly ash in silica precipitation and its subsequent use in catalyst synthesis. |
| Databáze: | OpenAIRE |
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