Enhanced fluoride removal by hierarchically porous carbon foam monolith with high loading of UiO-66

No Thumbnail Available
File version
Author(s)
Xie, D
Gu, Y
Wang, H
Wang, Y
Qin, W
Wang, G
Zhang, H
Zhang, Y
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2019
Size
File type(s)
Location
License
Abstract

Environmental concern associated with excess fluoride has intrigued the unceasing exploration of new multifunctional hybrid materials to mitigate any undesirable consequence to human health. Herein, a novel hybrid monolith has been successfully fabricated via a facile in-situ growth strategy for highly efficient defluoridation from contaminated waters, in which homogeneously dispersed UiO-66 particles are perfectly anchored on three dimensional (3D) porous carbon foam (CF). Benefiting from fully exposed active sites, excellent pore accessibility and efficient mass transport, the integrated UiO-66/CF hybrid monolith exhibits fast adsorption kinetics, and outstanding uptake capacity toward fluoride as high as 295 mg g−1, which greatly outperforms the previously reported adsorbents. Furthermore, the fluoride removal efficiency of the spent monolith can reach up to 70% after four cycles, accompanied by facile separation nature and outstanding water stability. More significantly, the resulting UiO-66/CF packed column (0.36 g) can continuously treat 400 mL of F− solution with 6.2 mg L−1 before the breakthrough point occurs, highlight its potential feasibility for fluoride removal in the practical applicability.

Journal Title

Journal of Colloid and Interface Science

Conference Title
Book Title
Edition
Volume

542

Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject

Physical sciences

Chemical sciences

Engineering

Persistent link to this record
Citation
Collections