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Reversible Phase Transfer of Carbon Dots between an Organic Phase and Aqueous Solution Triggered by CO2
Pei, Xiaoyan1; Xiong, Dazhen1; Wang, Huiyong1; Gao, Shuaiqi1; Zhang, Xinying1; Zhang, Suojiang2; Wang, Jianji1
2018-03-26
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
Volume57Issue:14Pages:3687-3691
AbstractCarbon dots (CDs) have attracted increasing attention in applications such as bio-imaging, sensors, catalysis, and drug delivery. However, unlike metallic and semiconductor nanoparticles, the transfer of CDs between polar and non-polar phases is little understood. A class of amine-terminated CDs is developed and their phase transfer behavior has been investigated. It is found that these CDs can reversibly transfer between aqueous and organic solvents by alternatively bubbling and removing CO2 at atmospheric pressure. The mechanism of such CO2-switched phase transfer involves reversible acid-base reaction of amine-terminated CDs with CO2 and the reversible formation of hydrophilic ammonium salts. By using the CDs as catalysts, the phase transfer is applied in the Knoevenagel reaction for efficient homogeneous reaction, heterogeneous separation, and recycling of the catalysts.
KeywordCarbon Dioxide Carbon Dots Condensation Reactions Homogeneous Catalysis Reversible Phase Transfer
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/anie.201800037
Indexed BySCI
Language英语
WOS KeywordCORE-SHELL NANOPARTICLES ; KNOEVENAGEL CONDENSATION ; HETEROGENEOUS CATALYSIS ; NANODOTS ; WATER ; INTERFACES ; OIL ; ELECTRONICS ; FABRICATION ; TRANSITION
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding Organization111 Project ; National Natural Science Foundation of China(U1704251 ; National Key Research and Development Program of China(2017YFA0403101) ; 21603063 ; 21673068)
WOS IDWOS:000428350100025
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24189
Collection多相复杂系统国家重点实验室
Affiliation1.Henan Normal Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Key Lab Green Chem Media & React,Minist Educ, Xinxiang 453007, Henan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Pei, Xiaoyan,Xiong, Dazhen,Wang, Huiyong,et al. Reversible Phase Transfer of Carbon Dots between an Organic Phase and Aqueous Solution Triggered by CO2[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(14):3687-3691.
APA Pei, Xiaoyan.,Xiong, Dazhen.,Wang, Huiyong.,Gao, Shuaiqi.,Zhang, Xinying.,...&Wang, Jianji.(2018).Reversible Phase Transfer of Carbon Dots between an Organic Phase and Aqueous Solution Triggered by CO2.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(14),3687-3691.
MLA Pei, Xiaoyan,et al."Reversible Phase Transfer of Carbon Dots between an Organic Phase and Aqueous Solution Triggered by CO2".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.14(2018):3687-3691.
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