Highly efficient capture of thorium ion by graphene oxide modified UiO-66-NH2 from aqueous solution

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 333; no. 3; pp. 1063 - 1072
• Main Authors: Guo, Dingge, Xiao, Jing, Ning, Yang, Yu, Hongchao, Jin, Tianxiang, Huang, Bin, Qian, Yong
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.03.2024; Springer Nature B.V
• Subjects: Adsorption; Aqueous solutions; Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Graphene; Hadrons; Heavy Ions; Heavy metals; Inorganic Chemistry; Metal-organic frameworks; Nuclear Chemistry; Nuclear Physics; Physical Chemistry; Thorium; Wastewater treatment; MOFs; Adsorption; Thorium; UiO-66-GO
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-023-09328-y

The efficient removal of thorium from the environment is critical due to the risks it poses to organisms. Metal–organic frameworks are favored by scholars because of their potential to effectively adsorb a variety of heavy metal ions in wastewater treatment. In this work, the interaction of UiO-66-NH 2 surface with graphene, enhances adsorption capacity of MOFs. Optimal adsorption conditions have been identified, and a detailed adsorption mechanism has also been comprehensively discussed. The theoretical maximum adsorption capacity exhibited by UiO-66-GO is 119.57 mg g −1 . Moreover, it shows a fast adsorption rate and reached equilibrium within 20 min. The development of materials with good adsorption performance and fast adsorption for Th(IV) plays an important role in the development of Th(IV) adsorption in the future.