| 반암(맥반석)으로 제조한 다공성 펠렛의 Ag 담지 및 항균 메디아로서의 적용 |
| 한요셉, 김현중1, 신영섭, 박재구, 고재철2 |
한양대학교 지구환경시스템공학과
2한국산업기술대 에너지대학원 |
| Silver Coating on the Porous Pellets from Porphyry Rock and Application to an Antibacterial Media |
| Yo-Sep Han, Hyun-Jung Kim1, Young-Seop Shin, Jai-Koo Park, Jae-Churl Ko2 |
Department of Geoenvironmental System Engineering, Hanyang University
1Department of Chemical and Environmental Engineering, University of California
2Graduate School of Knowledge Based Technology and Energy, Korea Polytechnic University |
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| ABSTRACT |
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The porous pellets were prepared from porphyry by slurry foaming method. The effect of sintering temperatures on pore structure of porous porphyry pellets with different extension ratio ($E_R$) was investigated by specific surface area, water absorption and porosity, which changed with sintering temperatures. When the sintering temperatures increased from $975^{circ}C$ to $1075^{circ}C$, specific surface area and water absorption of the all samples decreased. In case of the sample with an equal sintering temperature, $E_R=3.0$ pellets had little influence on pore structure compared to the $E_R=2.0$ pellets. As a results, it was shown by SEM that facilitated formation of micro pores at $E_R=2.0$ pellets shrunk increasingly after sintering process. At $E_R=3.0$ and sintering temperature at $1025^{circ}C$, optimum conditions of the porous porphyry porous pellets was found. Also, Escherichia coli removal efficiency of the silver-containing porphoyry porous pellets was measured for the feasibility as a antibacterial media. The antibacterial activity of prepared silver-containing sample was maintained above 90% for 40 days. |
| Key words:
Porphyry rock, Porous pellets, Pore structure, Silver, Antibacterial media |
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