| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 | 21권 1호, p.781 |
| 발표분야 | 재료 |
| 제목 | Silver Nanoparticles: A simple large scale synthesis, growth behavior and their catalytic activity |
| 초록 | This article presents a simple large-scale synthesis of silver nanoparticles in an aqueous-phase using a multifunctional polymer. The silver nanoparticles have been synthesized by reacting aqueous solutions of AgNO 3 and polyethyleneimine at 50 °C. The experimental conditions such as reaction temperature, pH, and relative ratio of polymer to silver precursor were found to be critical in the formation, stabilization, reaction time and morphology of synthesiszed nanoparticles. Transmission electron microscopy (TEM), and UV-vis spectroscopy results revealed that spherical silver nanoparticles with sizes of around 8 nm were synthesized by coalescence and reshaping of small size silver aggregates. X-ray analysis confirmed the formation of face-centered cubic (FCC) metallic silver. Furthermore, silver nanoparticles showed effective catalytic activity in the NaBH 4 reduction of 4-nitrophenol to 4-aminophenol. |
| 저자 | AASIM SHAHZAD , 김우식 |
| 소속 | 경희대 |
| 키워드 | Silver nanoparticles ; multifunctional polymer ; green synthesis ; catalytic activity |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
