거대 기공을 갖는 다공질 TiO2 분말의 살균 효과

노성훈; 김정근; 조영상; Seong Hoon Roh; Jeong Keun Kim; Young-Sang Cho

Korean Chemical Engineering Research, Vol.56, No.4, 524-535, August, 2018

DOI10.9713/kcer.2018.56.4.524 Export Citation

거대 기공을 갖는 다공질 TiO2 분말의 살균 효과

Synthesis of Macroporous TiO2 Microparticles for Anti-Bactericidal Application

노성훈, 김정근, 조영상^†

한국산업기술대학교 생명화학공학과, 15073 경기도 시흥시 산기대학로 237

Seong Hoon Roh, Jeong Keun Kim, and Young-Sang Cho^†

Department of Chemical Engineering and Biotechnology, Korea Polytechnic University, 237, Sangidadaehak-ro, Siheung-si, Gyeonggi-do 15073, Korea

E-mail:

초록

본 연구에서는 에멀젼 자기조립틀을 활용하여 거대기공을 갖는 타이타니아 분말을 합성하였으며, 자외선 조사를 활용한 광촉매 실험을 통해 상용화된 타이타니아 나노입자와 다공질 타이타니아 분말을 이용한 고초균의 살균 효과를 비교하였다. 다공질 분말의 기공 크기를 달리하여 자외선 조사 시간에 따른 고초균 수의 감소를 측정하였으며, 살균 실험의 최적 조건을 도출하기 위하여 기공 크기에 따른 다공질 타이타니아 분말의 살균력을 비교하였다. 기공 크기가 작아질수록 살균 효과는 증대됨을 관찰하였으며, 광촉매의 활용 및 자외선 조사에 의해 1시간 동안 50% 이상의 고초균이 제거되는 효과를 확인하였다. 또한 활성 화학종의 발생을 촉진하기 위하여 과산화수소의 희석 용액을 광촉매 살균 방식과 결합하였으며, 1시간 동안의 자외선 조사에 의해 균주의 거의 대부분이 사멸되는 등 고초균에 대한 살균 효과를 증진시킬 수 있었다.

In this study, macroporous titania powders were synthesized utilizing the emulsion-assisted self-assembly to apply the removal of B. subtilis under UV irradiation, and the results were compared with the bactericidal effect of commercial titania nanoparticles. By changing the pore size of the porous titania powder, the reduction of B. subtilis by photocatalytic effect was measured, and the bactericidal capacity of the porous particles according to the pore size was compared in order to derive the optimum condition of the sterilization experiment. It was observed that the sterilization effect increased as the pore size became smaller, and it was confirmed that more than 50% of B. subtilis cold be removed for 1 hour of UV irradiation. Also, in order to promote the generation of active chemical species, a diluted solution of hydrogen peroxide was combined with the photocatalytic sterilization method, resulting in the removal of most of the strain after ultraviolet irradiation for 1 hour.

Keywords:Macroporous titania;Photocatalyst;B. subtilis;Antibacterial activity

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[2] Lee SY, Jung JH, Jin HH, Kim YH, Oh SW, J. Fd. Hyg. Safety, 22(4), 235 (2007)

[3] Yeon JH, Kim IJ, Park KH, Park BK, Park HK, Park DW, Kim YS, Kim HI, Jeon DH, Lee YJ, Ha SD, Korean J. Food Sci. Technol., 38(4), 599 (2006)

[4] Yang BG, Lee JH, Heo MS, Korean J. Microbiol., 39(1), 56 (2003)

[5] Jeon BH, Hwang IY, JKAIS, 16(1), 868 (2015)

[6] Nam EJ, Kang YJ, Lee YK, Korean J. Food Preserv., 13(2), 234 (2006)

[7] Mok CK, Lee NH, Korean J. Food Sci. Technol., 40(2), 228 (2008)

[8] Choe SB, Han SJ, Han OH, Kim HS, Kang ST, J. Korean Soc. Food Sci. Nutr., 42(1), 148 (2013)

[9] Choi SH, Han MN, Cha MH, Theor. Appl. Chem. Eng., 1(2), 919 (1995)

[10] Hyeon HH, Lee DK, J. Korean Oil Chemists' Soc., 34(1), 50 (2017)

[11] Zhu ZF, Yang D, Liu H, Adv. Powder Technol., 22(4), 493 (2011)

[12] Park JH, Ahn KC, Lee JK, Korean J. Environ. Agric., 19, 284 (2000)

[13] Chae SY, Park MK, Lee SK, Kim TY, Kim SK, Lee WI, Chem. Mater., 15(17), 3326 (2003)

[14] Choi W, J. Korean Ind. Eng. Chem., 14(8), 1011 (2003)

[15] Kim JK, Shin YK, Lee YS, Kim YH, Kim SW, Kor. J. Microbiol., 37(2), 130 (2001)

[16] Dillert R, Siemon U, Bahnemann D, Chem. Eng. Technol., 21(4), 356 (1998)

[17] Ekpeghere I, Koo JH, Kim JH, Lee BW. Yi SN, Kim YH, Koh SC, Korean J. Microbiol., 47(2), 137 (2011)

[18] Oh IA, Shin CH, Cho YS, Korean J. Met. Mater, 54(8), 573 (2016)

[19] Wu YQ, Hench LL, Du J, Choy KL, Guo JK, J. Am. Ceram. Soc., 87(10), 1988 (2004)

[20] Shao C, Kim HY, Gong J, Ding B, Lee DR, Park SJ, Mater. Lett., 57, 1579 (2003)

[21] Park SY, Lee MH, So YJ, Culi. Sci. Hos. Res., 23(5), 151 (2017)

[22] Jung YJ, Joung YC, Ahn TS, Korean J. Microbiol., 47(2), 130 (2011)

[23] Shin JH, Kim GM, Kang MJ, Yang SM, Sung NK, Korean J. Food Cookery Sci., 26(3), 307 (2010)

[24] Lee JW, Lee J, Kim C, Cho CY, Moon JH, Scientific Reports, 4, 6804 (2014)

[25] Raj KJA, Viswanathan B, Indian J. Chem., 48A, 1378 (2009)

[26] Cho YS, Oh IA, Jung NR, J. Dispersion Sci. Technol., 37, 676 (2016)

[27] Song PK, Irie Y, Ohono S, Sato Y, Shigesato Y, Jpn. J. Appl. Phys., 43(4A), L442 (2004)

[28] Chen ML, Bae JS, Oh WC, Anal. Sci. Technol., 19(4), 301 (2006)

[29] Ranjit KT, Viswanathan B, J. Photochem. Photobiol. A-Chem., 108(1), 79 (1997)

[30] Jung JA, Kwak DH, Oh DW, Park DM, Yang OB, Korean Chem. Eng. Res., 50(1), 11 (2012)

[31] Son DR, Kim JH, Lee SH, Lee HI, J. Korean Ind. Eng. Chem., 14, 391 (2006)