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隔膜辉光放电技术合成Cu2O/Cu O/MWCNTs及其对葡萄糖的传感性能
Synthesis of Cu2O/Cu O/MWCNTs nanocomposite by diaphragm glow discharge plasma for glucose sensing
【摘要】 以铜片作为阳极,底部带有小孔的石英管中插入的铜片作为阴极,在多壁碳纳米管(MWCNTs)和Na Cl水溶液中通过隔膜辉光放电(DGD)等离子体技术一步合成了Cu2O/Cu O/MWCNTs纳米复合材料,并对其传感葡萄糖的性能进行了评价.XRD,XPS和SEM分析表明,Cu2O/Cu O成功负载于MWCNTs表面.电化学测试发现,Cu2O/Cu O/MWCNTs纳米材料对葡萄糖的灵敏度为1857,检出限为0.09μmol·L-1(n=11),对实际样品5%葡萄糖注射液的测定值和标签值一致,回收率为97%~110%.以上结果表明,隔膜辉光放电技术是一种制备Cu2O/Cu O/MWCNTs纳米材料的绿色、环保新技术,制备的材料可用于葡萄糖的高灵敏检测.
【Abstract】 Cu2O/CuO/MWCNTs nanocomposites were synthesized by diaphragm glow discharge(DGD) plasma in carbon nanotubes(MWCNTs) and NaC l solution using copper plate as anode and copperp late insert ed into a quartz tube with smallholes at the bottom as cathode.The glucose sensi ngpropertiesof Cu2O/CuO/MWCNTs were evaluated.XRD,XPS and SEM analysis showed thatCu2O/CuO i s successfully loaded on the surface of MWCNTs.The electrochemical testi ndicated the sensitivity of Cu2O/CuO/MWCNTs nanomaterials to glucose is 1 857,and the detection limit is 0.09μmol·L-1(n=11).The measured value of 5% glucose injection in real samples is consistent with the lab el va lue,and the recovery rate is 97%~110%.The above results show that the DGDtechnologyis agree n and environmentally friendly technique for preparing Cu2O/CuO/MWCNTs nanomaterials,andthe prepared materials can be used for highly sensitive detection of glucose.
【Key words】 diaphragm glow discharge; plasma; Cu2O/Cu O/MWCNTs; glucose; sensor;
- 【文献出处】 西北师范大学学报(自然科学版) ,Journal of Northwest Normal University(Natural Science) , 编辑部邮箱 ,2024年06期
- 【分类号】O657.1;TB332
- 【下载频次】15