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题名: Seed-mediated growth approach for rapid synthesis of high-performance red-emitting CdTe quantum dots in aqueous phase and their application in detection of highly reactive oxygen species
作者: Xu, YL; Hao, JJ; Niu, XY; Qi, SD; Chen, HL; Wang, K; Chen, XG(陈兴国); Yi, T
收录类别: SCIE ; EI ; BIOSIS
出版日期: 2016-09-01
刊名: CHEMICAL ENGINEERING JOURNAL
卷号: 299, 页码:201-208
英文摘要: Here we demonstrate the seed-mediated growth approach, one of the most reliable and versatile methods to control the size and shape of nanocrystals (NCs), for rapid synthesis of high performance red-emitting core/shell CdTe quantum dots (QDs) in aqueous phase. Critical parameters (including the pH value, Cd:Te molar ratio, MPA:Cd molar ratio, and the amount of CdTe seeds) affecting the growth of core/shell CdTe QDs are systematically introduced and analyzed. Under optimal conditions, the growth behaviors can be well controlled, and the high performance typically offered by the seed-mediated growth method was obtained as expected. The emission peak position quickly shifted from 540 to 680 nm in 30 min, and the red-emitting CdTe QDs thus obtained performed well, giving good size distribution, narrow full width at half maximum and high quantum yield. The growth mechanism and the resulting high structural and optical properties were also elucidated. Finally, the obtained CdTe QDs were successfully applied to highly reactive oxygen species (hROS) sensing, suggesting that this method may be useful in bioimaging and biolabeling. (C) 2016 Elsevier B.V. All rights reserved.
关键词: Seed-mediated ; Red-emitting CdTe QDs ; Highly reactive oxygen species
作者部门: [Xu, Yali ; Niu, Xiaoying ; Qi, Shengda ; Chen, Hongli ; Chen, Xingguo] Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China ; [Yi, Tao] Hong Kong Baptist Univ, Sch Chinese Med, Kowloon, Hong Kong, Peoples R China ; [Hao, Junjie ; Wang, Kai] South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
通讯作者: Chen, HL (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China. ; Yi, T (reprint author), Hong Kong Baptist Univ, Sch Chinese Med, Kowloon, Hong Kong, Peoples R China.
学科分类: Engineering
文章类型: Article
所属项目编号: National Nature Science Foundation of China [21475053] ; Fundamental Research Funds for the Central Universities [lzujbky-2015-33] ; Faculty Research Grant of Hong Kong Baptist University [FRG2/14-15/061] ; Guangdong Natural Science Foundation [2014A030313766]
所属项目名称: 国家自然科学基金项目 ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; LZU
语种: 英语
DOI: 10.1016/j.cej.2016.04.008
ISSN号: 1385-8947
WOS记录号: WOS:000377832500025
EI记录号: 20162402480502
BIOSIS记录号: BCI:BCI201600643320
IR记录号: WOS:000377832500025
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/180563
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Xu, YL,Hao, JJ,Niu, XY,et al. Seed-mediated growth approach for rapid synthesis of high-performance red-emitting CdTe quantum dots in aqueous phase and their application in detection of highly reactive oxygen species[J]. CHEMICAL ENGINEERING JOURNAL,2016,299:201-208.
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