کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
147801 | 456399 | 2014 | 6 صفحه PDF | دانلود رایگان |
• A new, well-designed type of large flower-like SERS substrate is synthesized.
• The new substrates exhibit high and reproducible SERS enhancement.
• The new substrates are expected to be applied in SERS-based analytical devices.
A novel type of large flower-like SERS substrate was synthesized via a hard template process. The synthesis was performed by etching commercial 3 Å molecular sieves with dilute hydrofluoric acid to prepare a flower-like support followed by the deposition of silver nanoparticles onto the support by chemical reduction. The as-prepared substrates exhibit high and reproducible SERS with an enhancement factor of ∼1.4 × 106, estimated using 4-mercaptobenzoic acid (4-MBA) as a model adsorbate. The method is low cost and avoids the use of nonvolatile surfactants in the preparation process, so may have potential application in the development of SERS-based analytical devices.
A new, well-designed type of large flower-like SERS substrate is synthesized by treating 3 Å molecular sieves with dilute hydrofluoric acid to prepare a support and then plating silver nanoparticles on this support.Figure optionsDownload as PowerPoint slide
Journal: Chemical Engineering Journal - Volume 244, 15 May 2014, Pages 252–257