反相微乳液法制备尺寸可调的高荧光碳量子点

董英鸽; 杨金龙; 丁艳丽; 魏志佳; 胡胜亮

doi:10.3788/fgxb20153602.0157

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反相微乳液法制备尺寸可调的高荧光碳量子点

材料合成及性能 | 更新时间：2020-08-12

- 反相微乳液法制备尺寸可调的高荧光碳量子点
- Size-controllable Synthesis of Highly Fluorescent Carbon Quantum Dots in A Reverse Microemusion
- 发光学报 2015年36卷第2期页码：157-162
- 作者机构：
  
  1. 中北大学材料科学与工程学院,山西太原,030051
  2. 清华大学新型陶瓷与精细工艺国家重点实验室北京,100084
- 作者简介：
- 基金信息：
  
  国家自然科学基金(51272301,51172120)资助项目()
- DOI：10.3788/fgxb20153602.0157
  中图分类号： O613.71
- 纸质出版日期：2015-2-3，
  
  网络出版日期：2014-12-19，
  
  收稿日期：2014-10-16，
  
  修回日期：2014-12-1，
扫描看全文
董英鸽, 杨金龙, 丁艳丽等. 反相微乳液法制备尺寸可调的高荧光碳量子点[J]. 发光学报, 2015,36(2): 157-162

DONG Ying-ge, YANG Jin-long, DING Yan-li etc. Size-controllable Synthesis of Highly Fluorescent Carbon Quantum Dots in A Reverse Microemusion[J]. Chinese Journal of Luminescence, 2015,36(2): 157-162
董英鸽, 杨金龙, 丁艳丽等. 反相微乳液法制备尺寸可调的高荧光碳量子点[J]. 发光学报, 2015,36(2): 157-162 DOI： 10.3788/fgxb20153602.0157.

DONG Ying-ge, YANG Jin-long, DING Yan-li etc. Size-controllable Synthesis of Highly Fluorescent Carbon Quantum Dots in A Reverse Microemusion[J]. Chinese Journal of Luminescence, 2015,36(2): 157-162 DOI： 10.3788/fgxb20153602.0157.

摘要

在反相微乳液体系中

以抗坏血酸作为碳源制备具有高强度荧光的碳量子点.实验中通过调整水和表面活性剂的量比实现对碳量子点尺寸大小的控制

利用十六烷基胺修饰碳量子点.当激发波长为360 nm时

碳量子点的量子产率最高为47%.当水和表面活性剂的量比从20增加到50时

碳量子点的尺寸也随之而增大.

Abstract

Highly luminescent carbon quantum dots (CQDs) were prepared by using L-ascorbic acid as a carbon source derived from reverse microemulsion. This method could control the CQDs size directly by adjusting water-surfactant molar ratio without other procedure. Hexadecylamine was used to functionize CQDs. The synthesized CQDs had high quantum yield of maximum 47% at the 360 nm excitation wavelength and the particle size could be tuned by changing the molar ratio of the water to surfactant from 20 to 50.

关键词

碳量子点反相微乳液尺寸可调

Keywords

CQDsreverse microemulsionsize tunability

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