Tunable amphiphilicity and multifunctional applications of ionic-liquid-modified carbon quantum dots

ACS Applied Materials & Interfaces
Baogang WangJingcheng Hao

Abstract

During the past decade, increasing attention has been paid to photoluminescent nanocarbon materials, namely, carbon quantum dots (CQDs). It is gradually accepted that surface engineering plays a key role in regulating the properties and hence the applications of the CQDs. In this paper, we prepared highly charged CQDs through a one-pot pyrolysis with citric acid as carbon source and a room-temperature imidazolium-based ionic liquid as capping agent. The as-prepared CQDs exhibit high quantum yields up to 25.1% and are stable under various environments. In addition, the amphiphilicity of the CQDs can be facilely tuned by anion exchange, which leads to a spontaneous phase transfer between water and oil phase. The promising applications of the CQDs as ion sensors and fluorescent inks have been demonstrated. In both cases, these ionic-liquid-modified CQDs were found to possess novel characteristics and/or superior functions compared to existing ones.

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Citations

Mar 2, 2016·Chemistry : a European Journal·Hongxia ZhuJingcheng Hao
Jun 5, 2016·Talanta·Li-Ming Shen, Jing Liu
Jun 18, 2016·Biosensors & Bioelectronics·Shoufang Xu, Hongzhi Lu
Jun 18, 2016·ACS Applied Materials & Interfaces·Zicheng LiangRuncang Sun
Oct 23, 2016·Talanta·Quan-Xing MaoJian-Hua Wang
Aug 27, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Jinglin ShenShiling Yuan
Oct 7, 2016·Chemical Communications : Chem Comm·Xiaofeng SunHongguang Li
May 8, 2018·Chemical Communications : Chem Comm·Pei Zhao, Liangliang Zhu
Jul 2, 2017·Scientific Reports·Yan ZhaoHuihua Qu
Dec 28, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Quan LiYun Wei
Jul 4, 2019·ACS Sensors·Meixiu LiJingquan Liu

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