| 학회 |
한국공업화학회 |
| 학술대회 |
2012년 가을 (10/31 ~ 11/02, 대전컨벤션센터) |
| 권호 |
16권 2호 |
| 발표분야 |
포스터-나노 |
| 제목 |
Titania-silica systems: Influence of Titania content on the mesostructure and their photocatalytic activity |
| 초록 |
Titania silica composites (TSC) with various Ti/Si ratios were synthesized via sol-gel process using sodium silicate solution as a silica source and titanium oxychloride as a titania source. The physic-chemical properties of the composites were examined by FTIR, SEM, TEM, DTA/TGA, N2 physisorption studies, XRF and XRD. The BET surface area of the raw materials increased with increasing Ti/Si ratio up to 2.9 (461 m2/g) but further increase of Ti content beyond that ratio yielded composites with decreased surface area. Furthermore, the photodegradation of methyl orange (MO) by the samples calcined at 800oC showed that the TSC-5-800 (Ti/Si=5.6) possessed the highest photocatalytic activity of all the composites. |
| 저자 |
SHAO GODLISTEN NAMWEL, Hilonga Askwar, 전순정, S.M.Imran, 김유나, 김재균, Nadir Abbas, 김희택
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| 소속 |
한양대 |
| 키워드 |
Peptization; Sodium silicate; Photodegradation
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| E-Mail |
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