Nanocellulose-based composite aerogels toward the environmental protection: Preparation, modification and applications

Jingjiang Yang; Xiaoshuai Han; Weisen Yang; Jiapeng Hu; Chunmei Zhang; Kunming Liu; Shaohua Jiang

doi:10.1016/j.envres.2023.116736

Nanocellulose-based composite aerogels toward the environmental protection: Preparation, modification and applications

Environ Res. 2023 Nov 1;236(Pt 1):116736. doi: 10.1016/j.envres.2023.116736. Epub 2023 Jul 24.

Authors

Jingjiang Yang¹, Xiaoshuai Han¹, Weisen Yang², Jiapeng Hu³, Chunmei Zhang⁴, Kunming Liu⁵, Shaohua Jiang⁶

Affiliations

¹ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International In-novation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China.
² Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resources Engineering, Wuyi University, Wuyishan, 354300, China. Electronic address: yangweisen@126.com.
³ Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resources Engineering, Wuyi University, Wuyishan, 354300, China.
⁴ Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China. Electronic address: cmzhang@usts.edu.cn.
⁵ Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
⁶ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International In-novation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China; Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resources Engineering, Wuyi University, Wuyishan, 354300, China. Electronic address: shaohua.jiang@njfu.edu.cn.

PMID: 37495064
DOI: 10.1016/j.envres.2023.116736

Abstract

Nanocellulose aerogel has the advantages of porosity, low density and high specific surface area, which can effectively realize the adsorption and treatment of wastewater waste gas. The methods of preparing nanocellulose mainly include mechanical, chemical and biological methods. Nanocellulose is formed into nanocellulose aerogel after gelation, solvent replacement and drying processes. Based on the advantages of easy modification of nanocellulose aerogels, nanocellulose aerogels can be functionalized with conductive fillers, reinforcing fillers and other materials to give nanocellulose aerogels in electrical, mechanical and other properties. Through functionalization, the properties of nanocellulose composite aerogel such as hydrophobicity and adsorption are improved, and the aerogel is endowed with the ability of electrical conductivity and electromagnetic shielding. Through functionalization, the applicability and general applicability of nanocellulose composite aerogel in the field of environmental protection are improved. In this paper, the preparation and functional modification methods of nanocellulose aerogels are reviewed, and the application prospects of nanocellulose composite aerogels in common environmental protection fields such as dye adsorption, heavy metal ion adsorption, gas adsorption, electromagnetic shielding, and oil-water separation are specifically reviewed, and new solutions are proposed.

Keywords: Adsorbent; Environmental protection; Functionalization; Nanocellulose aerogels; Recycling.

Publication types

Review
Research Support, Non-U.S. Gov't

MeSH terms

Cellulose* / chemistry
Conservation of Natural Resources*
Metals
Porosity
Solvents

Substances

Cellulose
Metals
Solvents