摘要
采用共沉淀法制备了镁铝类水滑石(Mg-Al HTLc)和十二烷基硫酸钠(SDS)改性镁铝类水滑石(Mg-Al-SDS HTLc),并通过红外光谱仪,台式扫描电镜及拉曼光谱仪对样品的结构进行了表征。以罗丹明B为目标物,通过循环伏安法对所得样品与石墨混合制成的修饰碳糊电极的电化学性质进行了研究。结果表明,Mg-Al-SDS HTLc修饰碳糊电极对罗丹明B的氧化能力强于Mg-Al HTLc修饰碳糊电极,紫外可见分光光度计的测试数据进一步证明了该结果。Mg-Al-SDS HTLc修饰碳糊电极氧化能力的增强可能是因为罗丹明B在其表面具有更强的吸附能力。
In this paper, the Mg-Al hydrotalcite-like compound（Mg-Al HTLc） and sodium lauryl sulfate modified Mg-Al hydrotalcite（Mg-Al-SDS HTlc） were synthesized successfully through co-precipitation method. The structure of these two samples were characterized with FTIR, scanning electron microscope and Raman spectrometer. These two materials were used as a modifier to prepared carbon paste electrodes, and the electrochemical properties of as-prepared electrodes were evaluated with rhodamine B（Rh B） as the object. The experimental results showed that the electrochemical oxidation ability of Mg-Al-SDS HTlc towards Rh B was higher than that of Mg-Al HTlc, and this result was further convinced by UV-vis spectroscopy. This enhanced oxidation ability could be attributed to the increased adsorption capacity of Rh B.
出处
《长治学院学报》
2016年第5期4-7,共4页
Journal of Changzhi University
关键词
镁铝类水滑石
十二烷基硫酸钠
碳糊电极
电化学性质
Mg-Al hydrotalcite
sodium lauryl sulfate
carbon paste electrode
electrochemical property
