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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 79 - 85 (7page)
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Porous TiO_2-SiO_2 particles were synthesized by co-assembly of nanoparticles of TiO_2 and SiO_2 in evaporating aerosol droplets. Poly styrene latex(PSL) particles were employed as a template of porous particles. Flowrate of dispersion gas, weight ratio of TiO_2/SiO_2 and SiO_2 concentration in the precursor, and PSL size were chosen as process variables. The morphology, crystal structure, chemical bonding, and pore size distribution were analyzed by Fe-SEM, XRD, FT-IR, BET. The morphology of porous TiO2-SiO2 particles was spherical and the average particle size range were from 1 to 10 ㎛. The particles were composed of meso and macro pores. The average particle diameter and pore volume of the as prepared particles were dependant on process variables. It was found that UV-Vis absorption of the porous particles was comparable with pure TiO_2 nanoparticles even though TiO_2/SiO_2 ratio is low in the porous particles.
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참고문헌 (11)
참고문헌 신청
Diebold, U / 2003 / The surface science of titanium dioxide / Surface science reports 48 : 53 ~ 229
Fu, X. / 1996 / Enhanced Photocatalytic Performance of Titania-Based Binary Metal Oxides: TiO2/SiO2 and TiO2/ZrO2 / Environ. Sci.Technol 30 : 647 ~ 653
Holland, B. T / 1998 / Synthesis of macroporousminerals with highly ordered three-dimensional arrays of spheroidal voids / Science 281 : 538 ~ 540
Iskandar, F / 2001 / Functional nano- structured silica powders derived from colloidal suspensions by sol spraying / J. Nanoparticle Res 3 : 263 ~ 270
Iskandar, F / 2007 / Enhanced photocatalytic performance of brookite TiO2 macroporous particles prepared by spray drying with colloidal templating / Adv. Mater 19 : 1408 ~ 14
Fu, X. / 1996 / Enhanced Photocatalytic Performance of Titania-Based Binary Metal Oxides: TiO2/SiO2 and TiO2/ZrO2 / Environ. Sci.Technol 30 : 647 ~ 653
Holland, B. T / 1998 / Synthesis of macroporousminerals with highly ordered three-dimensional arrays of spheroidal voids / Science 281 : 538 ~ 540
Iskandar, F / 2001 / Functional nano- structured silica powders derived from colloidal suspensions by sol spraying / J. Nanoparticle Res 3 : 263 ~ 270
Iskandar, F / 2007 / Enhanced photocatalytic performance of brookite TiO2 macroporous particles prepared by spray drying with colloidal templating / Adv. Mater 19 : 1408 ~ 14
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