摘要
以硝酸银为原料,柠檬酸钠为表面修饰剂,抗坏血酸为还原剂,在室温下采用晶种生长法合成银纳米片。通过调控硝酸银和晶种的含量以及反应时间,可以获得不同形貌、尺寸和光学特征的银纳米片。系统表征了纳米银片溶胶的吸收光谱并探讨了各实验参数对纳米银片形成的影响机制和纳米银片形成机理。结果表明,在适当的硝酸银和晶种含量和反应时间条件下,可获得边长范围为100~250 nm圆角三角形纳米银片。
Silver nanoplates were synthesized by seed growth method at room temperature with silver nitrate as raw material,sodium citrate as surface modifier and ascorbic acid as reducing agent.Silver nanoplates with different morphologies,sizes and optical characteristics can be obtained by regulating the contents of silver nitrate,seed and reaction time.The absorption spectra of silver nanoplates were systematically characterized and the influence mechanism of various experimental parameters on the formation of silver nanoplates and the formation mechanism of silver nanoplates were discussed.The results show that the rounded triangle silver nanoplates with side lengths ranging from 100~250 nm can be obtained under the conditions of appropriate silver nitrate and seed content and reaction time.
作者
牟登科
周欢森
钟建军
王悦辉
贾晓菲
冯敏玲
MOU Deng-ke;ZHOU Huan-sen;ZHONG Jian-jun;WANG Yue-hui;JIA Xiao-fei;FENG Min-ling(Department of Material and Food,University of Electronic Science and Technology of China,Zhongshan Institute,Zhongshan 528402,China;Zhongshan Agricultural Product QualitySupervision and Inspection Institute,Zhongshan 528405,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第11期2748-2751,共4页
Applied Chemical Industry
基金
国家自然科学基金(61671140)。
关键词
银纳米片
晶种
表面等离子体共振
吸收光谱
拉曼增强
silver nanoplates
seed
surface plasmon resonance
absorption spectroscopy
Raman enhancement
作者简介
牟登科(1986-),女,重庆人,初级实验员,主要从事生物技术的研究,电话:0760-88325742,E-mail:shirleywyh@126.com;通讯联系人:王悦辉,电话:15900020061,E-mail:wangzsedu@126.com。
