A silsesquioxane-based thiophene-bridged hybrid nanoporous network as a highly efficient adsorbent for wastewater treatment
| Autor: | Hongzhi Liu, Mingtao Ge |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Nanoporous Metal ions in aqueous solution 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silsesquioxane 0104 chemical sciences chemistry.chemical_compound Adsorption Chemical engineering chemistry Heck reaction Rhodamine B Thiophene Organic chemistry General Materials Science 0210 nano-technology Mesoporous material |
| Zdroj: | Journal of Materials Chemistry A. 4:16714-16722 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c6ta06656a |
| Popis: | A novel hybrid nanoporous network was easily fabricated by the one-step Heck reaction of octavinylsilsesquioxane with dibromothiophene. FTIR, solid state CP-MAS-NMR (13C and 29Si), and elemental analysis indicate that a thiophene unit has been successfully introduced into the silsesquioxane-based network. The Brunauer–Emmett–Teller (BET) measurement shows that this hybrid network possesses a high surface area of 915 m2 g−1, a large pore volume of 1.61 cm3 g−1, and unique hierarchical pores, i.e. uniform micropores and continuous multimodal mesopores. Remarkably, it displays an ultrahigh adsorption capability of 1402 mg g−1 for Rhodamine B, and 862 mg g−1 for Methylene Blue, which are among the highest values compared with other reported adsorbents. It also shows a good removal capability of toxic heavy metal ions from wastewater. More importantly, it could remove multiple pollutants efficiently from wastewater by simple filtration and possesses excellent regeneration performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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