铅离子对碳纳米颗粒荧光发射规律的影响

李磊磊; 魏亚雄; 王新华; 徐燃; 曾勋; 胡胜亮

doi:10.3788/fgxb20133401.0111

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铅离子对碳纳米颗粒荧光发射规律的影响

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 铅离子对碳纳米颗粒荧光发射规律的影响
- The Effect of Lead Ions on Luminescent Behaviors of Carbon Nanoparticles
- 发光学报 2013年34卷第1期页码：111-115
- 作者机构：
  
  中北大学材料科学与工程学院, 山西太原 030051
- 作者简介：
- 基金信息：
  
  国家自然科学基金(51272301,51172214,50902126)();山西省普通高等学校青年学术带头人项目(2010年)();山西省大学生创新实验立项资助项目()
- DOI：10.3788/fgxb20133401.0111
  中图分类号： O613.71
- 纸质出版日期：2013-1-10，
  
  收稿日期：2012-9-23，
  
  修回日期：2012-10-23，
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李磊磊, 魏亚雄, 王新华, 徐燃, 曾勋, 胡胜亮. 铅离子对碳纳米颗粒荧光发射规律的影响[J]. 发光学报, 2013,(1): 111-115

LI Lei-lei, WEI Ya-xiong, WANG Xin-hua, XU Ran, ZENG Xun, HU Sheng-liang. The Effect of Lead Ions on Luminescent Behaviors of Carbon Nanoparticles[J]. Chinese Journal of Luminescence, 2013,(1): 111-115
李磊磊, 魏亚雄, 王新华, 徐燃, 曾勋, 胡胜亮. 铅离子对碳纳米颗粒荧光发射规律的影响[J]. 发光学报, 2013,(1): 111-115 DOI： 10.3788/fgxb20133401.0111.

LI Lei-lei, WEI Ya-xiong, WANG Xin-hua, XU Ran, ZENG Xun, HU Sheng-liang. The Effect of Lead Ions on Luminescent Behaviors of Carbon Nanoparticles[J]. Chinese Journal of Luminescence, 2013,(1): 111-115 DOI： 10.3788/fgxb20133401.0111.

摘要

以热解石墨为原料

利用电化学方法

制备了荧光碳纳米颗粒。系统地研究了在不同浓度、时间、pH值、温度等条件下

离子对碳纳米颗粒荧光发射规律的影响。实验结果表明:Pb

离子不改变光谱形状

但可以降低荧光峰值强度;Pb

离子作用荧光碳纳米颗粒的时间越长

猝灭效率越低;pH值不同

猝灭效率不同;随着温度的升高

离子对碳纳米颗粒荧光的猝灭效率逐步提高。其猝灭机理可能为电荷转移猝灭和动态猝灭。

Abstract

Fluorescent carbon nanoparticles were prepared by electrochemical methods using pyrolytic graphite as raw materials. The effects of lead ion solutions with different concentrations on light emission of carbon nanoparticles were systematically investigated and the roles of reaction time

pH values

and temperature played were also considered in this paper. Experimental results show that lead ions can change the intensity of photoluminescence (PL) from carbon nanoparticles rather than its spectral shape. The effects of lead ions on PL of carbon nanoparticles reduce with the increase of reaction time

and change with pH values. In addition

the higher temperature can strengthen the effects of lead ions on PL intensity of carbon nanoparticles. The possible mechanism could be attributed to charge transfer and Brownian movement.

关键词

碳纳米颗粒铅离子荧光检测

Keywords

carbon nanoparticleslead ionfluorescencedetection

references

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