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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract In this study, Ag@Cu alloy nanoparticles and silver nanowires (AgNWs) were synthesized by a green method using the Pterospermum heterophyllum extract. To study the influence of the precursor ratio on the synthesis of Ag@Cu, the molar ratio of Ag Cu was changed to 10:7, 10:6, 10:5, and 10:4. To study the influence of the precursor concentration on the formation of AgNWs, the AgNO 3 concentration was varied with values such as 3, 4, 5, 6, 7, and 8 mM. The results showed that spherical Ag@Cu were formed uniformly when the Ag:Cu molar ratio was high. The branched structures appeared when the Ag:Cu molar ratio was 10:6 and 10:7. The formation of AgNWs strongly depended on the precursor concentration, similar to the polyol method. 5 mM of AgNO 3 was the most suitable concentration for the synthesis of AgNWs. Ag@Cu and AgNWs have been studied for surface-enhanced Raman scattering effects on MB dye. The results showed that both types of particles could enhance Raman scattering with enhancement factors up to 10 8 and 10 9 . This proved that the green method synthesized Ag@Cu and AgNWs for products with equivalent applications to the chemical methods.
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