Fe-based metallic glass catalyst with nanoporous surface for azo dye degradation
| Autor: | Taiping Li, Liu Lunhong, Z. Deng, Xiang Zhang, Kang Cheung Chan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis Iron Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Catalysis Metal Nanopores Etching (microfabrication) Specific surface area Environmental Chemistry Porosity Coloring Agents Amorphous metal Nanoporous Chemistry technology industry and agriculture Public Health Environmental and Occupational Health General Medicine General Chemistry 021001 nanoscience & nanotechnology Pollution 0104 chemical sciences Chemical engineering visual_art visual_art.visual_art_medium Degradation (geology) sense organs Glass 0210 nano-technology Azo Compounds |
| Zdroj: | Chemosphere. 174 |
| ISSN: | 1879-1298 |
| Popis: | In this work, porous structures were introduced to the surface of Fe-based metallic glass ribbons for the first time by chemical treatment in order to increase the catalytic activity in the degradation of azo dyes. The results show that etching treatment in an HF solution with a volume concentration of 20% for 40 min leads to a porous structure on the FeSiBNb metallic glass with a dramatic increase in the specific surface area by 25 times. The much higher specific surface area of the porous ribbons greatly improves the catalytic activity in the degradation of Direct Blue 15 when compared with as-spun metallic ribbons. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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