Mohammad KarzarJeddi, Ossi Laitinen, Mehrdad Mahkam, Henrikki Liimatainen, Zwitterionic hybrid aerobeads of binary metal organic frameworks and cellulose nanofibers for removal anionic pollutants, Materials & Design, Volume 196, 2020, 109106, ISSN 0264-1275, https://doi.org/10.1016/j.matdes.2020.109106
Zwitterionic hybrid aerobeads of binary metal organic frameworks and cellulose nanofibers for removal anionic pollutants
|Author:||KarzarJeddi, Mohammad1,2; Laitinen, Ossi1; Mahkam, Mehrdad2;|
1Fibre and Particle Engineering Research Unit, Faculty of Technology, University of Oulu, P.O. Box 4300, FI-90014, Finland
2Department of Chemistry, Faculty of Science, Azerbaijan Shahid Madani University, P.O. Box 53714-161, Tabriz, Iran
|Online Access:||PDF Full Text (PDF, 1.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020110489209
|Publish Date:|| 2020-11-04
Different adsorbents have been applied to remove various anionic pollutants in water treatment processes. However, the development of economic, sustainable, and high-performance adsorbents is still a challenge. Herein, we introduce a new strategy to produce highly porous (98.96%), very low density (0.015 g/cm³), and cost-effective spherical and nanostructured hybrid aerogels, termed aerobeads, from cellulose nanofibers (CNF) and metal-organic frameworks (MOFs). The zwitterionic MOFs@CNF aerobeads (with 10–50 wt% MOF loading) were synthesized via simple dropping of a cross-linked hydrogel containing CNF and a binary mixture of anionic and cationic MOFs in liquid nitrogen, followed by freeze-drying. The flexible aerobeads (diameter of 2–3 mm) with hierarchical porous structure demonstrated an outstanding adsorption capacity toward both diclofenac (121.20 mg/g) and methyl orange (49.21 mg/g). Moreover, the aerobeads were easily collected after use from the solution without any complicated separation methods or the formation of secondary pollutants.
Materials & design
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
218 Environmental engineering
This research was supported by grants from the Academy of Finland projects “Bionanochemicals” (No. 298295) and “ACNF—Functional nanoribbons from asymmetrically modified cellulose nanomaterials” (No. 325276).
|Academy of Finland Grant Number:||
298295 (Academy of Finland Funding decision)
325276 (Academy of Finland Funding decision)
© 2020 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).