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Cellulose Sulfate Nanofibers for Enhanced Ammonium Removal
- Source :
- Nanomaterials, Vol 14, Iss 6, p 507 (2024)
- Publication Year :
- 2024
- Publisher :
- MDPI AG, 2024.
-
Abstract
- In this study, a sulfonation approach using chlorosulfonic acid (CSA) to prepare cellulose sulfate nanofibers (CSNFs) from raw jute fibers is demonstrated. Both elemental sulfur content and zeta potential in the CSNFs are found to increase with increasing CSA content used. However, the corresponding crystallinity in the CSNFs decreases with the increasing amount of CSA used due to degradation of cellulose chains under harsh acidic conditions. The ammonium adsorption results from the CSNFs with varying degrees of sulfonation were analyzed using the Langmuir isotherm model, and the analysis showed a very high maximum ammonium adsorption capacity (41.1 mg/g) under neutral pH, comparable to the best value from a synthetic hydrogel in the literature. The high ammonium adsorption capacity of the CSNFs was found to be maintained in a broad acidic range (pH = 2.5 to 6.5).
- Subjects :
- nanocellulose
ammonium removal
cellulose sulfate
jute
Chemistry
QD1-999
Subjects
Details
- Language :
- English
- ISSN :
- 14060507 and 20794991
- Volume :
- 14
- Issue :
- 6
- Database :
- Directory of Open Access Journals
- Journal :
- Nanomaterials
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.4e3d44a52fd43ad82b0958e33af2828
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/nano14060507