Journal
ENVIRONMENTAL CHEMISTRY LETTERS
Volume 16, Issue 2, Pages 605-614Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-017-0701-8
Keywords
Cellulose nanofibres; Cellulose nanofibres aerogels; Amine modification; Carbon dioxide (CO2) adsorbents
Funding
- Special Fund for Forest Scientific Research in the Public Welfare [201504603]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
- Doctorate Fellowship Foundation of Nanjing Forestry University of China [163020772]
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Climate change has become increasingly serious due to the greenhouse effect. It is therefore necessary to control the content of greenhouse gases such as carbon dioxide in the atmosphere, using, for instance, CO2-adsorbing materials. Here, we synthesized ultra-lightweight and spherical cellulose nanofibres aerogels by a suspension titration method using an efficient amination process. These functional materials with high porosity, higher than 96.54%, and three-dimensional network structure, were prepared by freeze-drying spherical cellulose nanofibres hydrogel. Their maximum CO2 adsorption capacity reaches 1.78 mmol/g, and they show excellent regeneration, of more than 10 cycles. This synthesis of bioaerogels represents a new method for the preparation of bio-CO2 adsorbents.
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