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Highly efficient and stable catalysis of p-nitrophenol via silver/lignin/polyacrylic acid hydrogel.
- Source :
-
International journal of biological macromolecules [Int J Biol Macromol] 2020 Feb 01; Vol. 144, pp. 947-953. Date of Electronic Publication: 2019 Oct 25. - Publication Year :
- 2020
-
Abstract
- As the second largest natural polymer in nature, lignin has a large amount of reserves and has important practical application value, which has attracted increasing attention. Ag@LPAH, a nanometer silver catalyst with a 3D structure, was successfully prepared in a simple operation. In batch experiment and fixed-bed experiment, it showed excellent catalytic degradation ability and stability of 4-NP. Thanks to the large number of carboxyl groups present in the lignin-polyacrylic acid hydrogel, the silver nanoparticles are well controlled to grow with no agglomeration. Ag@LPAH-20 exhibited optimal catalytic performance and stability, requiring only 123 s to complete the reaction and maintaining 99% catalytic efficiency after 10 cycles. In addition, the catalytic efficiency can be maintained over 90% for more than 120 min in fixed bed experiment.<br /> (Copyright © 2019 Elsevier B.V. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1879-0003
- Volume :
- 144
- Database :
- MEDLINE
- Journal :
- International journal of biological macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 31669463
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2019.09.172