Flexible nanocellulose-based aerogel with loading of modified UiO-66 as efficient adsorbent for removal of heavy metal ions

Submitting author affiliation:
Nanjing Forestry University, Nanjing, China

Beilstein Arch. 2019, 2019107. https://doi.org/10.3762/bxiv.2019.107.v1

Published 17 Sep 2019

cc-by Logo
This preprint has not been peer-reviewed. When a peer-reviewed version is available, this information will be updated.


Currently, preparation of outstanding adsorbents has attracted public concern in environmentally friendly and sustainable pollutant redress. Herein, we report a directional freeze-drying method to prepare a flexible and reusable adsorbent through introducing modified metal-organic framework material (UiO-66-EDTA) into cellulose nanofibers (CNF) aerogel. By controlling the concentration of crosslinkable carboxymethy cellulose (CMC) solution, we produced aerogels with different pore structures, fibrillar, columnar and lamellar morphology. The obtained UiO-66-EDTA/CNF/CMC aerogel (U-EDTACCA) showed excellent adsorption performance for total 9 types of heavy metal ions with the removal efficiency reaching 91%. Moreover, the aerogels could retain 88% of its original shape after 5 times cycling. The aerogel may be appropriate material for adsorbing heavy metal ions.

Keywords: nanocellulose aerogel, metal-organic framework, heavy metal ions, adsorption, directional freeze-drying

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Li, J.; Tan, S.; Rong, N.; Zhang, K.; Xu, M.; Xu, Z. Beilstein Arch. 2019, 2019107. doi:10.3762/bxiv.2019.107.v1

Download Citation

Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.