期刊
FRONTIERS IN CHEMISTRY
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2020.605028
关键词
carbon nanodots; pH-sensitive; photoluminescence; pH sensing; mechanism
资金
- National Natural Science Foundation of China [21805021, 21804103]
- China Postdoctoral Science Foundation [2020M683449, 2018M631057]
- Natural Science Foundation of Shaanxi province [2020JQ-087, 2020JQ-095]
- Young Talent Support Plan of Xi'an Jiaotong University [YX6J001]
- Fundamental Research Funds for the Central Universities
Carbon nanodots with sp(2)/sp(3) framework and diameter of <10 nm have abundant functional groups or polymers on their surface, making them attractive for various applications. They exhibit good optical properties and intrinsic pH-sensitive photoluminescence, showing great potential for pH sensing, particularly in biotic environments. Challenges and future research directions of pH-sensitive C-dots are also discussed in this review, aiming to contribute to the development of photoluminescent nanomaterials with pH-sensitive properties.
Carbon nanodots (C-dots) with sp(2)/sp(3) framework and diameter of <10 nm contain abundant functional groups or polymers on their surface. C-dots have attracted immense attention because of their unique optical properties, excellent biocompatibility, facile preparation, and low cost. With these merits, C-dots have been used in a wide range of applications including sensing, bioimaging, catalysis, and light-emitting devices. C-dots exhibit good optical properties, such as tunable emission wavelength, good photostability, nonblinking, up-conversion emission, etc. Of note, C-dots show intrinsic pH-sensitive photoluminescence (PL), indicating their great potential for pH sensing, especially in biotic pH sensing. In this review, we systematically summarize the pH-sensitive PL properties and the pH-sensitive PL mechanism, as well as recent research progress of C-dots in pH sensing. The current challenges of pH-sensitive C-dots and their future research focus are also proposed here. We anticipate this review might be of great significance for understanding the characteristics of pH-sensitive C-dots and the development of photoluminescent nanomaterials with pH-sensitive properties.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据