| dc.creator |
Sarawade, Pradip B. |
|
| dc.creator |
Quang, Dang Viet |
|
| dc.creator |
Hilonga, Askwar |
|
| dc.creator |
Jeon, Sun Jeong |
|
| dc.creator |
Kim, Hee Taik |
|
| dc.date |
2019-11-08T07:26:59Z |
|
| dc.date |
2019-11-08T07:26:59Z |
|
| dc.date |
2012-08-15 |
|
| dc.date.accessioned |
2022-10-25T09:24:33Z |
|
| dc.date.available |
2022-10-25T09:24:33Z |
|
| dc.identifier |
https://doi.org/10.1016/j.matlet.2012.04.110 |
|
| dc.identifier |
http://dspace.nm-aist.ac.tz/handle/123456789/515 |
|
| dc.identifier.uri |
http://hdl.handle.net/123456789/95554 |
|
| dc.description |
Research Article published by Elsevier Volume 81, 15 August 2012 |
|
| dc.description |
Here we report the preparation of micrometer-sized highly nanoporous, relatively trasperant silica aerogel beads with high surface area as well as large pore volume with sizes ranging from 165 to 395 μm. The wet micrometer-sized silica hydrogel beads were prepared through hydrolysis and polycondensation of sodium silicate as a silica precursor. A hydrophobic micro-silica aerogel nanoporous bead was synthesized by simultaneous solvent exchange surface modification process of as synthesized micron sized silica hydrogel bead at an ambient pressure. Hydrophilic micron-sized silica aerogel beads with relatively more textural properties (surface area, pore volume and pore size) with its counterpart were obtained by heating the synthesized hydrophobic micro-silica aerogel beads at 395 °C for an hour. This study demonstrates a robust approach to high porous hydrophobic and hydrophilic micro-silica aerogel beads with a myriad of potential applications in various fileds such as catalysis, biomolecule immobilization, chromatographic separation, and CO2 absorption. This proposed synthesis, which exploits a low-cost silica source (water-glass), is suitable for large-scale industrial production of highly porous hydrophobic and hydrophilic micro-silica aerogel beads at an ambient pressure. |
|
| dc.format |
application/pdf |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.subject |
Micro-silica aerogel bead |
|
| dc.subject |
Ambient pressure drying |
|
| dc.title |
Synthesis and characterization of micrometer-sized silica aerogel nanoporous beads |
|
| dc.type |
Article |
|