• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Wusimanjiang, Yiliyasi (Wusimanjiang, Yiliyasi.) | Meyer, Alexander (Meyer, Alexander.) | Lu, Liping (Lu, Liping.) (学者:鲁理平) | Miao, Wujian (Miao, Wujian.)

收录:

Scopus SCIE PubMed

摘要:

Effects of multi-walled carbon nanotubes (CNTs) that were immobilized on glassy carbon electrode (GCE) on the electrogenerated chemiluminescence (ECL) of CdTe quantum dots (QDs) using tri-n-propylamine (TPrA) and 2-(dibutylamino)ethanol (DBAE) as the anodic coreactant are reported. Depending on the solution concentration of coreactant and QDs, the surface-confined CNTs could either quench or enhance the ECL intensity. Lowering the solution concentration of QDs was found to be beneficial for enhancing ECL. A V-shaped profile of ECL intensity ratio (at CNTs over bare GCE) versus coreactant concentration suggested that either low or high concentrations of coreactant were needed for effective ECL generation. The ECL quenching by CNTs was believed to follow the typical dynamic quenching mechanism, which was confirmed by fluorescent data that provided a Stern-Volmer and an estimated quenching constant of 11.7 g/L and 1.2 x 10(9) L/gaEuro cent s, respectively, for the excited state CdTe* quenching by CNTs in solution. Furthermore, the ECL performance at CNTs was also affected by the type of the coreactant used, where up to 30 times enhancement in ECL was observed from the CdTe/DBAE system under the given experimental conditions.

关键词:

Carbon nanotubes CdTe quantum dots Dynamic quenching ECL coreactant Electrogenerated chemiluminescence (ECL)

作者机构:

  • [ 1 ] [Wusimanjiang, Yiliyasi]Univ Southern Mississippi, Dept Chem & Biochem, 118 Coll Dr, Hattiesburg, MS 39406 USA
  • [ 2 ] [Meyer, Alexander]Univ Southern Mississippi, Dept Chem & Biochem, 118 Coll Dr, Hattiesburg, MS 39406 USA
  • [ 3 ] [Miao, Wujian]Univ Southern Mississippi, Dept Chem & Biochem, 118 Coll Dr, Hattiesburg, MS 39406 USA
  • [ 4 ] [Lu, Liping]Beijing Univ Technol, Coll Environm & Energy Engn, Key Lab Beijing Reg Air Pollut Control, 100 Ping Le Yuan, Beijing 100124, Peoples R China

通讯作者信息:

  • [Miao, Wujian]Univ Southern Mississippi, Dept Chem & Biochem, 118 Coll Dr, Hattiesburg, MS 39406 USA

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

ANALYTICAL AND BIOANALYTICAL CHEMISTRY

ISSN: 1618-2642

年份: 2016

期: 25

卷: 408

页码: 7049-7057

4 . 3 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:147

中科院分区:2

被引次数:

WoS核心集被引频次: 10

SCOPUS被引频次: 9

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 2

在线人数/总访问数:1097/2911588
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司