Two-dimensional metal–organic framework for post-synthetic immobilization of graphene quantum dots for photoluminescent sensing

You Liang Chen, Darwin Kurniawan, Meng Dian Tsai, Jhe Wei Chang, Yu Na Chang, Shang Cheng Yang, Wei Hung Chiang, Chung Wei Kung

Research output: Contribution to journalArticlepeer-review

Abstract

Immobilization of graphene quantum dots (GQDs) on a solid support is crucial to prevent GQDs from aggregation in the form of solid powder and facilitate the separation and recycling of GQDs after use. Herein, spatially dispersed GQDs are post-synthetically coordinated within a two-dimensional (2D) and water-stable zirconium-based metal–organic framework (MOF). Unlike pristine GQDs, the obtained GQDs immobilized on 2D MOF sheets show photoluminescence in both suspension and dry powder. Chemical and photoluminescent stabilities of MOF-immobilized GQDs in water are investigated, and the use of immobilized GQDs in the photoluminescent detection of copper ions is demonstrated. Findings here shed the light on the use of 2D MOFs as a platform to further immobilize GQDs with various sizes and distinct chemical functionalities for a range of applications.

Original languageEnglish
Article number108
JournalCommunications Chemistry
Volume7
Issue number1
DOIs
Publication statusPublished - 2024 Dec

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Environmental Chemistry
  • Biochemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Two-dimensional metal–organic framework for post-synthetic immobilization of graphene quantum dots for photoluminescent sensing'. Together they form a unique fingerprint.

Cite this