Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid - Details

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Abstract：

An　easy　bottom-up　method　for　the　preparation　of　photoluminescent　(PL)　graphene　quantum　dots　(GQDs)　and　graphene　oxide　(GO)　has　been　developed　by　tuning　the　carbonization　degree　of　citric　acid　and　dispersing　the　carbonized　products　into　alkaline　solutions.　The　GQDs　are　nanosheets　∼15　nm　in　width,　and　0.5-2.0　nm　in　thickness.　They　show　a　relatively　strong　(9.0%)　PL　quantum　yield　and　an　excitation-independent　PL　emission　activity.　In　contrast,　the　GO　nanostructures　consist　of　sheets　that　are　hundreds　of　nanometers　in　width　and　∼1　nm　in　height.　They　exhibit　a　relatively　weak　(2.2%)　PL　quantum　yield　and　an　excitation-dependent　PL　emission　activity.　©　2012　Elsevier　Ltd.　All　rights　reserved.

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[ 1 ] [Dong, Y.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 2 ] [Shao, J.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 3 ] [Chen, C.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 4 ] [Li, H.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 5 ] [Wang, R.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 6 ] [Chi, Y.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 7 ] [Lin, X.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China
[ 8 ] [Chen, G.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China

Reprint 's Address：

[Chi, Y.]Department of Chemistry, MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Fuzhou Univiersity, Fujian 350108, China

Email：

y.w.chi@fzu.edu.cn

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Carbon

ISSN： 0008-6223

Year： 2012

Issue： 12

Volume： 50

Page： 4738-4743

5 . 8 6 8

JCR@2012

1 0 . 5 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：1

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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