| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
정밀화학_포스터 |
| 제목 |
Fabrication of SERS substrate using silver nanoparticle-embedded thin silica coated graphene oxide |
| 초록 |
Silver nanoparticle-embedded thin silica-coated graphene oxide (GO@SiO2@Ag NPs) was fabricated for using as a surface-enhanced Raman scattering (SERS) substrate. First, GO was coated with 6 nm layer of silica by the physical adsorption of sodium silicate, following by the hydrolysis of 3-mercaptopropyl trimethoxysilane in basic condition to functionalize the surface of silica-coated GO with thiol-groups. To prepare GO@SiO2@Ag NPs, Ag NPs were then introduced onto the GO@SiO2 by the reduction of Ag+ by octylamine in ethylene glycol at room temperature. For application, GO@SiO2@Ag was used to detect 4-mercaptobenzoic acid (4-MBA). The detection limit of GO@SiO2@Ag NPs for 4-MBA was as low as 0.74 µM. |
| 저자 |
강은지, Xuan-Hung Pham, 함은일, 김형모, 하유나, 김태한, 전봉현
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| 소속 |
건국대 |
| 키워드 |
Graphene oxide; Silica coating; Surface-enhanced Raman scattering (SERS); Signal enhancement
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| E-Mail |
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