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首页> 外文期刊>RSC Advances >Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles
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Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles

机译：Ag和ZnO纳米颗粒上吸附的两种新型哌嗪碳二硫酸的表面增强拉曼散射研究

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In this work piperazine-1-carbodithioic acid (PZCDT) and piperazine-1,4-dicarbodithioic acid (PZbCDT) were synthesized. These analytes PZCDT and PZbCDT have chair conformations, which is expected to give specific surface-enhanced Raman scattering (SERS) effects on individual bands. SERS, UV-Visible, TEM and DFT methods have proved that the dithiocarbamate moiety is a potential and suitable functional group for silver and ZnO nanoparticles (AgNPs and ZnONPs). The enhancement mechanism and enhancement factors in both SERS@AgNPs and SERS@ZnONPs are also discussed. Two new strong bands appear at 1630, 1286 cm(-1) with very large intensity in SERS@AgNPs, which signifies the conversion of the C-N bond of the dithiocarbamate moiety into C=N bonds. The SERS signatures that are observed are quite different in SERS@AgNPs and SERS@ZnONPs.
机译：在这项工作中，合成了哌嗪-1-碳二硫代酸（PZCDT）和哌嗪-1,4-二碳二硫代酸（PZbCDT）。这些分析物PZCDT和PZbCDT具有椅子构型，有望在各个谱带上产生特定的表面增强拉曼散射（SERS）效果。 SERS，紫外可见光，TEM和DFT方法已经证明，二硫代氨基甲酸酯部分是银和ZnO纳米粒子（AgNP和ZnONP）的潜在且合适的官能团。还讨论了SERS @ AgNPs和SERS @ ZnONPs中的增强机制和增强因子。两个新的强带出现在1630年1286 cm（-1）处，在SERS @ AgNPs中具有非常大的强度，这表明二硫代氨基甲酸酯部分的C-N键转换为C = N键。在SERS @ AgNPs和SERS @ ZnONPs中观察到的SERS签名完全不同。

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