| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 |
21권 1호, p.966 |
| 발표분야 |
재료 |
| 제목 |
Synthesis of Macroporous Titania/Silica alloy Particles for Host Materials of CO2Capture |
| 초록 |
Macroporous Titania/Silica alloy particles were prepared by emulsion-assisted colloidal templating, in which non-aqueous emulsions have been used for dealing with reactive sol-gel precursors such as titanium butoxide(TBT) and tetraethyl orthosilicate(TEOS). Submicron-sized crosslinked polystyrene (PS) beads were used as template for macropore. The toluene-in-formamide emulsions including PS beads, sol-gel precursors were prepared using high-speed homogenizer. Then, PS-Titania/Silica composite particles were produced by evaporation of toluene using heat treatment. Finally, macroporus Titania/Silica alloy particles were obtained by heat treatment which developed macropores inside particles. Macroporous particles were further functionalized with various amine compounds, in which CO2 adsorption and desorption capacities and rates were compared. Amine compounds were reacted with hydroxyl group on the host material surface. So CO2 capacity was concerned with number of hydroxyl group on the surface. Titania was provided more high number of hydroxyl group than silica. This results, CO2 capacity was increased, when the Titania/silica alloy materials were used. |
| 저자 |
정대웅1, 박종현2, Tran Phu Thanh1, 이계행3, 이기라1
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| 소속 |
1성균관대, 2공주대, 3한국기초과학지원(연) |
| 키워드 |
Titania; carbon dioxide; Macropore; amine
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| E-Mail |
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| 원문파일 |
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