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摘要
采用两步法合成了金纳米星，通过消光光谱和透射电镜的表征，发现金纳米星的表面有多个针尖状纳米结构。针尖状结构末端的尺寸5~10 nm，可形成多个拉曼热点。将其作为表面增强拉曼散射（SERS）活性基底，通过拉曼光谱检测了塑化剂DBP的含量，检出限可达到10 ng。金纳米星可作为一种灵敏的SERS活性基底为食品、生活用品等环境中的塑化剂提供快速的检测。
Abstract
Gold nanostars,which have many needle-like nano structures,are synthesized by two-step method and characterized by extinction spectrum and transmission electron microscope.The end of needle like nano structure has a size of 5-10 nm,which can form many Raman hot spots.Gold nanostars are used as the active substrate of surface-enhanced Raman scattering to detect the content of plasticizer dibutyl phthalate (DBP),the detection limit achieves 10 ng.Gold nanostars have a potential application in providing rapid detection of plasticizers in food,daily necessities and other environments.
关键词
塑化剂
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金纳米星
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SERS
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表面增强拉曼散射
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DBP
Key words
plasticizer
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gold nanostars
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SERS
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surface-enhanced Raman scattering
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DBP
金纳米星的制备及对塑化剂的快速检测[J].
现代化工, 2021, 41(4): 234-237 DOI:10.16606/j.cnki.issn0253-4320.2021.04.049
