本文選題：電子還原　切入點(diǎn)：復(fù)合膜　出處：《物理化學(xué)學(xué)報(bào)》2017年02期

【摘要】：利用室溫電子還原技術(shù)合成了一種金納米顆粒與瓊脂糖復(fù)合膜。合成過程采用氬氣輝光放電為廉價(jià)電子源,方便快捷,綠色環(huán)保。通過紫外-可見(UV-Vis)分光光度計(jì)、透射電子顯微鏡(TEM)、掃描電子顯微鏡(SEM)、X射線衍射(XRD)儀、光電子能譜(XPS)等表征,發(fā)現(xiàn)可以通過改變氯金酸濃度調(diào)控復(fù)合膜中金納米顆粒的分布,加入聚乙烯吡咯烷酮(PVP)可有效控制金納米顆粒的形貌。由于復(fù)合膜具有金納米顆粒密集排布的結(jié)構(gòu),可作為表面增強(qiáng)拉曼散射(SERS)活性基底。實(shí)驗(yàn)表明,以對氨基苯硫酚為探針,該復(fù)合膜作為SERS基底,SERS平均增強(qiáng)因子超過了106,檢測限達(dá)到了10-12mol?L-1。除此之外,作為SERS基底,復(fù)合膜具有良好的均一性和穩(wěn)定性。
[Abstract]:A composite film of gold nanoparticles and agarose was synthesized by electron reduction technique at room temperature. Argon glow discharge was used as a cheap electron source in the synthesis process. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS) and other characterizations have shown that the distribution of gold nanoparticles in the composite films can be controlled by changing the concentration of chlorau acid. The morphology of gold nanoparticles can be effectively controlled by adding polyvinylpyrrolidone (PVP). Because the composite film has a dense arrangement of gold nanoparticles, it can be used as a surface enhanced Raman scattering (SERS) active substrate. The experimental results show that p-aminophenol is used as a probe. The average enhancement factor of the composite membrane for SERS substrate is over 106, and the detection limit is 10-12 mol? In addition, as a SERS substrate, the composite film has good homogeneity and stability.
【作者單位】： 天津大學(xué)化工學(xué)院天津化學(xué)化工協(xié)同創(chuàng)新中心;
【基金】：國家自然科學(xué)基金(21476157)資助項(xiàng)目~~
【分類號】：TB383.2;O657.37

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 李舒爽;陶磊;張奇;劉永梅;曹勇;;納米金催化的綠色合成與清潔反應(yīng)研究新進(jìn)展[J];物理化學(xué)學(xué)報(bào);2016年01期

2 王皓;宋凌s，

本文編號：1659962