Rapid and large-capacity adsorption of heterocyclic aromatic amines on heat resistant two-dimensional metal organic layer/cellulose nanofiber aerogels constructed by a thawing cross-linking strategy

Qiyue Zhao; Hong-Man Hou; Yulong Qiu; Gong-Liang Zhang; Hongshun Hao; Bei-Wei Zhu; Jingran Bi

doi:10.1016/j.jhazmat.2023.133160

Rapid and large-capacity adsorption of heterocyclic aromatic amines on heat resistant two-dimensional metal organic layer/cellulose nanofiber aerogels constructed by a thawing cross-linking strategy

J Hazard Mater. 2024 Mar 5:465:133160. doi: 10.1016/j.jhazmat.2023.133160. Epub 2023 Dec 3.

Authors

Qiyue Zhao¹, Hong-Man Hou¹, Yulong Qiu¹, Gong-Liang Zhang¹, Hongshun Hao¹, Bei-Wei Zhu², Jingran Bi³

Affiliations

¹ School of Food Science and Technology, Dalian Polytechnic University, No. 1, Qinggongyuan, Ganjingzi District, Dalian, Liaoning 116034, People's Republic of China; Liaoning Key Lab for Aquatic Processing Quality and Safety, No. 1, Qinggongyuan, Ganjingzi District, Dalian, Liaoning 116034, People's Republic of China.
² School of Food Science and Technology, Dalian Polytechnic University, No. 1, Qinggongyuan, Ganjingzi District, Dalian, Liaoning 116034, People's Republic of China.
³ School of Food Science and Technology, Dalian Polytechnic University, No. 1, Qinggongyuan, Ganjingzi District, Dalian, Liaoning 116034, People's Republic of China; Liaoning Key Lab for Aquatic Processing Quality and Safety, No. 1, Qinggongyuan, Ganjingzi District, Dalian, Liaoning 116034, People's Republic of China. Electronic address: bijr@dlpu.edu.cn.

PMID: 38064948
DOI: 10.1016/j.jhazmat.2023.133160

Abstract

Composite aerogels, formed by the combination of nanoscale polymers and highly efficient adsorbents, offer the potential to deploy adsorbent distinct separation properties into a processable matrix. This paper presents a method for the fabrication of low energy bio-aerogels with high ductility, excellent wet strength and favorable heat resistance, based on cellulose nanofibers (CNFs) bound by calcium carbonate particles (CaCO₃) via a simple process of ice induction, cross-linking during freezing and freeze-drying. Due to induced defects, two-dimensional metal-organic layers (MOLs) were rich in mesoporous structure and embedded in the aerogel (AG^Ca-MOL), which exhibited a powerful adsorption capacity. AG^Ca-MOL could take full advantage of their hierarchical pores and available surface area to obtain high adsorption capacity (0.694-5.470 μmol/g) and rapid adsorption kinetics (5 min) for 14 heterocyclic aromatic amines (HAAs). Moreover, the CaCO₃ particles and MOLs gave the AG^Ca-MOL excellent thermal stability, so that it could maintain excellent adsorption capacity at a high temperature (100 °C) and be applied as an adsorbent to remove HAAs in the boiling marinade. The intrinsic potential of composite aerogels was revealed due to the synergistic properties of the various components in the composite aerogel.

Keywords: Aerogels; Heat resistant; Heterocyclic aromatic amines; Large-capacity adsorption; Metal organic layer.