基于花生皮的碳量子点的制备及在铜离子检测中的应用
Preparation of carbon dots based on peanut skin and its application in copper ion detection
陈达 1王路杰 1褚惠炎 1王安雨 1汪阳平1
作者信息
- 1. 浙江杭康检测技术有限公司,浙江 杭州 310011
- 折叠
摘要
本实验以生物质材料花生皮为原料,采用一步水热法制备荧光碳量子点.对制得的碳量子点分别进行了红外与荧光光谱测试.并对合成条件进行优化,结果发现,在合成温度为140℃、pH值为 5的条件下反应6h制得的碳量子点荧光效果最佳.用其检测浓度梯度为 1×10-6 mol·L-1 的Cu2+溶液,有明显的荧光猝灭现象,改变反应体系的pH值,荧光猝灭现象并没有太大的波动,说明反应体系的pH值变化并不影响二者的相互作用.碳量子点溶液与Cu2+溶液在12min后荧光强度基本不变,表明二者相互作用基本完成.该方法合成碳量子点绿色环保、原料丰富,符合当代环保、可持续发展的理念,具有广阔的前景.
Abstract
In this study,fluorescent carbon quantum dots(CQDs)were prepared by one-step hydrothermal method from peanut skin of biomass material.The carbon quantum dots were measured by infrared spectra and fluorescence spectra respectively.The synthesis conditions were optimized,and the results showed that the carbon quantum dots obtained for 6h reaction at 140℃ and pH value of 5 had the best fluorescence effect.It was used to detect Cu2+solutions with a concentration gradient of 1×10-6 mol·L-1,which had obvious fluorescence quenching phenomenon and changed the pH value of the reaction body system,but the fluorescence quenching phenomenon did not fluctuate greatly,indicating that the pH value change of the reaction system did not affect the interaction between the two.The fluorescence intensity of carbon quantum dot solution and Cu2+solution remained basically unchanged after 12min,indicating that the interaction between them was basically completed.The synthesis of carbon quantum dots by this method is environmentally friendly and rich in raw materials,which accords with the concept of contemporary environmental protection and sustainable development,and has a broad prospect.
关键词
花生皮/水热反应/碳量子点/铜离子检测Key words
peanut skin/water thermal response/carbon quantum dots/copper ion detection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据