| 학회 |
한국재료학회 |
| 학술대회 |
2008년 가을 (11/07 ~ 11/07, 차세대융합기술연구원) |
| 권호 |
14권 2호 |
| 발표분야 |
나노생체재료 |
| 제목 |
Synthesis and photocatalytic activity of Ag spot-coated TiO2-SrO composite powders |
| 초록 |
Nano-sized TiO2-60wt% SrO composite powders were synthesized by a sol-gel method using titianium isopropoxide and Sr(OH)2·8H2O as precursors. 3, -5, -7wt%Ag spot-coated TiO2-60wt% SrO composite powders were synthesized by a Ag electroless deposition method using the TiO2-60wt% SrO composite powders calcined at 1050 oC. The TiO2-60wt% SrO composite powders calcined at 1050 oC were mainly exhibited the SrTiO3 phase. However, small number of rutile TiO2, Sr2TiO4 and SrO2 phases were detected. In the Ag spot-coated TiO2-SrO composite powders synthesized by a electroless deposition method, nano-sized particles about 5-25 nm in diameter adhered to the TiO2-60wt% SrO composite powders. The photocatalytic activity of Ag spot-coated TiO2-SrO and TiO2-SrO composite powders for degradation of phenol showed that all of TiO2-SrO composite powders were high active under UV light irradiation. 7wt%Ag spot-coated TiO2-60wt.%SrO composite powders were a relatively higher photocatalytic activity than that of TiO2-SrO composite powders under visible light. |
| 저자 |
Jae-Kil Han1, Sung-Chang Choi1, In-Chul Kang1, Won-Seok Hong2, Jae-Kil Han1
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| 소속 |
1Songdo Techno Park, 2Korea Institute of Machinery and Materials |
| 키워드 |
Nanoparticle; Photoactivity; Sol-gel method
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| E-Mail |
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