Abstract
Porous materials were prepared from colored waste glass by hydrothermal treatment with Na 2CO 3 aqueous solution. The resultant specific surface area was approximately 140 m 2/g at maximum. Specific surface area increased at first, reached a maximum, and decreased gradually to be constant at approximately 60 m 2/g depending on the period of hydrothermal treatment, irrespective of the concentration of Na 2CO 3 aqueous solution. However, the period at which the specific surface area reached maximum shortened with an increase in Na 2CO 3 concentration. On the other hand, the mass of the sample decreased and eventually saturated at approximately 30 mass% of the initial weight during the hydrothermal treatment. Both the dissolution of the mother glass and the formation of crystalline deposits, which were identified as calcite, zeolite-P and analcime, affected the porous structure of the treated samples.
Original language | English |
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Pages (from-to) | 2153-2157 |
Number of pages | 5 |
Journal | Ceramics International |
Volume | 38 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2012 Apr |
Keywords
- B. Composites
- B. Porosity
- D. Glass
- E. Functional applications
- Hydrothermal treatment
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry