A template-free method for the synthesis of porous alumina with superhigh specific surface area and large pore volume
| Autor: | Hongchang Pang, Peihan Zhu, Peng Tian, Junwei Ye, Liu Yuanli, Guiling Ning, Weitao Gong |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound Adsorption law Specific surface area General Materials Science Calcination Porosity Aqueous solution technology industry and agriculture General Chemistry equipment and supplies 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Amorphous solid Congo red Volume (thermodynamics) chemistry Chemical engineering Mechanics of Materials 0210 nano-technology |
| Zdroj: | Microporous and Mesoporous Materials. 292:109752 |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2019.109752 |
| Popis: | This work demonstrates a facile organic-free and template-free approach for synthesizing spindle-like alumina with large pore volume and high specific surface area via a gas-liquid interfacial method followed by calcination. The influences of different calcination temperatures on the porous alumina were systematically studied. The possible formation mechanism of the spindle-like structures was also investigated. The results exhibited that the as-obtained amorphous alumina calcined at 300 °C had superhigh surface areas (up to 853 m2/g). Furthermore, the adsorption performance of the as-prepared amorphous alumina with high surface area was also evaluated. This spindle-like amorphous alumina showed an excellent adsorption capacity (3284 mg/g) for the removal of Congo red from aqueous solution, which indicate this porous alumina may have great potential applications in adsorption and other related areas. |
| Databáze: | OpenAIRE |
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