Synthesis of nanoporous zeolite-Y and zeolite-Y/GO nanocomposite using polyelectrolyte functionalized graphene oxide
| Autor: | Vishnu V. Pillai, Issam Ismail, Aasif A. Dabbawala, Samuel Stephen, Anjana Tharalekshmy, Vasileios Tzitzios, Saeed M. Alhassan, Georgia Basina, Kyriaki Polychronopoulou, Kevin Sunny |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanocomposite Nanoporous Oxide 02 engineering and technology Surfaces and Interfaces General Chemistry Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Polyelectrolyte 0104 chemical sciences Surfaces Coatings and Films chemistry.chemical_compound Adsorption Chemical engineering chemistry Materials Chemistry Particle size 0210 nano-technology Zeolite |
| Zdroj: | Surface and Coatings Technology. 350:369-375 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2018.07.036 |
| Popis: | Zeolite-Y with different particle size was synthesized and the growth of crystals was studied in the presence of a cationic polyelectrolyte (PDDA) functionalized graphene oxide (PDDA-GO). The assembly of PDDA-GO was found to be cooperative in the growth of pure zeolite-Y crystals with various particle sizes (400 nm and 100 nm). The submicron size zeolite-Y particles were grown with entrapment of the GO nanosheets and the complete removal of PDDA-GO by calcination under air atmosphere assisted nanoporosity generation in the zeolite crystals. Whereas the growth of nano-size zeolite-Y particles occurred through both side of GO surface and produce nanocomposite with inter-particles porosity. The synthesized nanoporous zeolite-Y and zeolite-Y/GO nanocomposite showed higher water adsorption capacity (259–291 mg/g) than microporous zeolite-Y that placed these adsorbents as promising candidate for water adsorption applications. |
| Databáze: | OpenAIRE |
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