고결정성을 갖는 이산화티탄 나노 졸의 합성 및 특성

심재경; 박종권; 조정은; 정노희; Jae-Kyung Sim; Jong-Kwon Park; Jung-Eun Cho; Noh-Hee Jeong

Applied Chemistry for Engineering, Vol.30, No.6, 694-697, December, 2019

DOI10.14478/ace.2019.1074 Export Citation

고결정성을 갖는 이산화티탄 나노 졸의 합성 및 특성

Synthesis and Property of Titanium Dioxide Nanosol with a High Crystalline Characteristics

심재경, 박종권, 조정은, 정노희^†

충북대학교 공과대학 공업화학과

Jae-Kyung Sim, Jong-Kwon Park, Jung-Eun Cho, and Noh-Hee Jeong^†

Department of Engineering Chemistry, Chungbuk University, Cheongju 28644, Korea

E-mail:

초록

최근에 이산화티탄 분말을 나노입자로 제조하거나 결정성을 향상하기 위해 1차원 구조인 nanowire, nanotube, 3차원 구조인 mesoporous 구형으로 생산하여 차단율과 반사율을 통한 광 전극 소재로의 활용과 피부 광 노화 방지에 더욱 효율적으로 적용할 수 있는 연구가 진행되고 있다. 본 연구에서는 n-alcohol을 용매로 사용하여 높은 결정성을 갖는 이산화티탄 나노 졸을 합성하였다. 합성된 이산화티탄 나노 졸은 FE-SEM과 XRD을 통해 결정성을 확인하였고, 자외선 차단율을 확인하기 위해서 UV-Vis로 투과율을 확인했다. 또한. 용매에 따른 결정성을 확인하기 위하여 부탄올, 프로판올, 에탄올을 이용하여 각각을 제조하였고, 용매에 따른 차이를 비교하였다. 입자크기는 200~250 nm로 합성되었으며 광학적 투과율은 UVB, UVA 범위에서 높은 차단율을 보이고, 550 nm 파장에서 높은 투과율을 보여 태양전지의 광전 변환 효율 향상과 소량 사용으로도 제품의 자외선 차단 효율을 높일 수 있을 것으로 기대된다.

In recent years, titanium dioxide powders were produced as nanoparticles or nanowires or nanotubes in one-dimensional structure, and mesoporous spheres in 3-D to improve their crystallinities, which were further used as photo-electrode materials and for preventing photo-aging. In this study, a nano sol composed of titanium dioxide exhibiting a high crystallinity was synthesized using n-alcohol as a solvent. The crystallinity of the nano sol was confirmed by FE-SEM, and XRD, while the UV blocking rate confirmed by UV-Vis spectrometry results. Changes in the crystallinity were investigated by varying the types of solvents such as butanol, propanol and ethanol. The synthesized particle sizes were from 200 to 250 nm, and the optical transmittance showed a high blocking rate in the UVB and UVA range. It is expected that a high transmittance at 550 nm wavelength can increase the photoelectric conversion efficiency of solar cells and the UV blocking efficiency.

Keywords:Cystallinity;UV blocking;Nanoparticle;Titanium dioxide

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[2] Yang WH, Kim DW, Jung MH, Yang JS, Park GS, J. Environ. Health Sci., 30, 92 (2004)

[3] Cox A, Venkatachalam P, Sahi S, Sharma N, Physiol. Biochem., 107, 147 (2016)

[4] Kominami H, Murakami SY, Kato JI, Kera Y, Ohtani B, J. Phys. Chem. B, 10, 10501 (2002)

[5] Caratto V, Ferretti M, Setti L, Appl. Surf. Sci., 258(7), 2393 (2012)

[6] Choi KM, Kim YH, Lim HJ, J. Korea Acad. Ind. Coop. Soc., 14, 846 (2013)

[7] Lim HS, Lee YH, Son JY, Yu YS, Lee DH, Sung DD, J. Korean Ind. Eng. Chem., 16(2), 187 (2005)

[8] Kim SH, Jung SG, Na SE, Ju CS, Korean Environmental Sciences Society Conference, 21, p. 510-511 (2012).

[9] Moon YT, Park HK, Kim DK, Seog IS, Kim CH, J. Am. Ceram. Soc., 78, 2690 (1995)

[10] Jha AK, Prasad K, Kulkarni AR, Colloids Surf. B: Biointerfaces, 71, 226 (2009)

[11] Jang HD, Kim SK, Kim SJ, J. Nanopart. Res., 3, 141 (2001)

[12] Myung JJ, Chung YS, Kyong JB, Kim HK, J. Korean Ind. Eng. Chem., 7(4), 794 (1996)

[13] Kim GH, Lee WJ, Kim DG, Lee SK, Lee SH, Kim IS, Korean J. Met. Mater., 48, 543 (2010)

[14] Akio N, Otsubo Y, Colloids Surf. A: Physicochem. Eng. Asp., 326, 92 (2008)

[15] Kim MY, Chunng JY, J. Korea Soc. Vis. Des. Forum, 41, 281 (2013)

[16] Lee JH, Kim JW, Kim JM, Choung SJ, Appl. Chem. Eng., 24(3), 231 (2013)

[17] Jung HH, Kim JH, Hwang J, Lim TY, Choi DG, J. Korean Cryst. Growth Cryst. Technol., 20, 227 (2010)

[18] Kim KC, J. Converg. Inf. Technol., 7, 53 (2017)