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Green Synthesis of Colloidal Gold by Ethyl Alcohol and NaOH at Normal Temperature
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Green Synthesis of Colloidal Gold by Ethyl Alcohol and NaOH at Normal Temperature
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NSFC(21171072

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    摘要:

    在乙醇和堿性環(huán)境下合成了金納米粒子，并通過電子顯微鏡進(jìn)行表征。紫外可見光譜計(jì)研究了膠體金吸收的吸收光譜及其不同的影響因子對合成過程的影響，氫氧化鈉的量對于最終膠體產(chǎn)物的形成是重要的影響因子。通過X射線衍射分析表明，該金納米粒子的晶體結(jié)構(gòu)是面心立方結(jié)構(gòu)。另外，討論了該反應(yīng)的機(jī)理及其氫氧化鈉在還原反應(yīng)中的作用，對于室溫下僅僅幾分鐘內(nèi)就產(chǎn)生金納米粒子，乙醇和氫氧根離子是缺一不可的

    Abstract:

    Gold nanoparticles (AuNPs) were synthesized by ethanol in a base environment. Electron microscopic images characterized the sizes of AuNPs. UV-Vis spectrometer was utilized to study the absorption spectra of gold colloid and the effect of different factors for synthesis. It is found that the quantity of sodium hydroxide (NaOH) is an important factor in determining the formation of the final colloidal product. X-ray diffraction (XRD) analysis was conducted to examine the crystalline structure of the AuNPs, and indicating the nanoparticles present a face-centered-cubic (fcc) crystalline structure. Moreover, the possible mechanism of the progress and the effect of NaOH on the reduction reaction were discussed. The alcohol and hydroxyl ions (OH-) are indispensable to generate the gold particles for one-step at room temperature in just few minutes

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湯俊琪,滿石清. Green Synthesis of Colloidal Gold by Ethyl Alcohol and NaOH at Normal Temperature[J].稀有金屬材料與工程,2013,42(11):2232~2236.[Tang Junqi, Man Shiqing. Green Synthesis of Colloidal Gold by Ethyl Alcohol and NaOH at Normal Temperature[J]. Rare Metal Materials and Engineering,2013,42(11):2232~2236.]
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  • 收稿日期:2012-11-25
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