Extraction of Electrochemiluminescent Oxidized Carbon Quantum Dots from Activated Carbon

被引：381

作者：

Dong, Yongqiang

Zhou, Nana

Lin, Xiaomei

Lin, Jianpeng

Chi, Yuwu ^{[1
]}

Chen, Guonan

机构：

[1] Fuzhou Univ, Minist Educ, Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Food Safety, Fuzhou 350108, Fujian, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 21期

基金：

中国国家自然科学基金;

关键词：

ELECTROGENERATED CHEMILUMINESCENCE; FLUORESCENT NANODIAMONDS; CDSE NANOCRYSTALS; SIZE DISTRIBUTION; LOW CYTOTOXICITY; IN-VIVO; NANOPARTICLES; GRAPHITE; ELECTROCHEMISTRY; PHOTOLUMINESCENCE;

D O I：

10.1021/cm1018844

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A facile method has been developed to extract oxidized carbon quantum dots (QDs) directly from activated carbon (AC) by chemical oxidation. The method has several advantages including low cost, high yield of QDs (>10%), and large-scale production. The as-prepared oxidized carbon QDs arc mainly graphitic structure nanocrystals of 3-4 nm in diameter, have abundant carboxyl groups at their surfaces, and exhibit strong electrochemiluminescent (ECL) activity, suggesting promising applications in ECL biosensing and imaging. The ECL properities, including ECL activities in the absence and presence of coreactants, effects of the size and surface passivation on the oxidized carbon QDs ECL were investigated and discussed in detail.

引用

页码：5895 / 5899

页数：5

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