articleACS Applied Nano MaterialsMar 4, 2026Closed access

Polyethylenimine-Grafted Nanoporous Zr-Based Organic Frameworks for Enhanced CO 2 Adsorption

YBYu BaoYTYingqi TangHZHuijuan ZhaoSCShaojuan ChenGZGuodong Zhao

Qingdao University · Advanced Materials and Devices (United States)

Indexed incrossref

Abstract

Metal–organic frameworks (MOFs) have attracted attention for carbon dioxide (CO2) capture due to their large surface area and easily regulated pores. However, their application still suffers from a low CO2 adsorption capacity and short lifespan under humid environments. We herein report on a promising strategy in which polyethylenimine (PEI) is postsynthetically grafted onto Zr-based organic frameworks (UiO-66-NH2) ligands to develop the nanoporous UiO-66-NH-acetyl (Ac)-PEI for CO2 adsorption. UiO-66-NH-Ac-PEI had a high specific surface area of 728.27 m2/g, with the particle size concentrated between 20 and 55 nm. Benefiting from the chemistry and environment created within the pores, UiO-66-NH-Ac-PEI…

Citation impact

4
total citations
FWCI
21.51
Percentile
99%
References
40
Too recent for citation history.

Authors

5

Topics & keywords

Topics
Keywords
  • Nanoporous
  • Adsorption
  • Polyethylenimine
  • Grafting
  • Selectivity
  • Amine gas treating
  • Specific surface area
No related works found for this paper.

Funding