Preparation of Graphene Quantum Dots by Laser-induced Polydimethylsiloxane

Jin-ping LIU; Xin LI; Rui-rong WANG; Hao GUO; Jun TANG; Jun LIU; Li-shuang LIU

doi:10.37188/CJL.20210251

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Preparation of Graphene Quantum Dots by Laser-induced Polydimethylsiloxane

Synthesis and Properties of Materials | 更新时间：2021-12-17

- Preparation of Graphene Quantum Dots by Laser-induced Polydimethylsiloxane
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 12, Pages: 1900-1905(2021)
- 作者机构：
  
  中北大学　仪器与电子学院，山西　太原　030051
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51775522);Shanxi province key laboratory of quantum sensing and precision measurement(201905D121001)
- DOI：10.37188/CJL.20210251
  CLC： O482.31
- Published：2021-12，
  
  Received：03 August 2021，
  
  Revised：23 August 2021，
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Jin-ping LIU, Xin LI, Rui-rong WANG, et al. Preparation of Graphene Quantum Dots by Laser-induced Polydimethylsiloxane. [J]. Chinese Journal of Luminescence 42(12):1900-1905(2021)
DOI：

Jin-ping LIU, Xin LI, Rui-rong WANG, et al. Preparation of Graphene Quantum Dots by Laser-induced Polydimethylsiloxane. [J]. Chinese Journal of Luminescence 42(12):1900-1905(2021) DOI： 10.37188/CJL.20210251.

摘要

采用简单、绿色、低成本的方法合成石墨烯量子点(GQDs)一直是研究者们不断追求和探究的热点。本文首先采用简单、低成本的激光诱导聚二甲基硅氧烷(PDMS)方法成功制备出有缺陷的少层石墨烯，然后再以所制备的石墨烯为碳源，采用一步水热法成功制备出了分散性良好、横向平均尺寸约为6.67 nm、发稳定蓝色荧光的GQDs溶液。分别采用透射电镜(TEM)、拉曼光谱、紫外吸收光谱和荧光光谱对GQDs的形貌和荧光特性进行了表征。以硫酸奎宁为标准参考物，计算所得GQDs的荧光量子产率约为6.3%。本研究提出的制备GQDs的方法具有简单、低成本、低污染的优势，为石墨烯量子点的制备提供了一种新途径、新参考，也为石墨烯量子点大规模商业化制备提供了潜力。

Abstract

Using simple

green and low-cost methods to synthesize graphene quantum dots(GQDs) has always been a hot topic pursued and explored by researchers. In this paper

a simple and low-cost laser-induced polydimethylsiloxane(PDMS) method was used to successfully prepare the defective graphene with few layers. Then

using the prepared graphene as carbon source

the GQDs with good dispersion

transverse average size of about 6.67 nm and stable blue fluorescence GQDs solution were successfully prepared by one-step hydrothermal method. The morphology and blue fluorescence characteristics of GQDs were characterized by transmission electron microscopy(TEM)

Raman spectroscopy

UV absorption spectroscopy and fluorescence spectroscopy. Taking quinine sulfate as the standard reference

the calculated fluorescence quantum yield of GQDs is about 6.3%. The method of preparing GQDs proposed in this study has the advantages of simplicity

low cost and low pollution. It provides a new way and new reference for the preparation of GQDs

and also provides potential for the large-scale commercial preparation of GQDs.

关键词

激光诱导石墨烯石墨烯量子点水热法荧光特性

Keywords

laser inducedgraphenegraphene quantum dotshydrothermal methodfluorescence properties

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Jin-ping LIU

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Related Institution

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