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Efficient Removal of Arsenic Using Zinc Oxide Nanocrystal-Decorated Regenerated Microfibrillated Cellulose Scaffolds
- Source :
- ACS Sustainable Chemistry & Engineering. 7:6140-6151
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- Regenerated microfibrillated cellulose (R-MFC) fibers were prepared successfully by a combined dissolution and regeneration approach using phosphoric acid/ethanol treatment on jute cellulose. The prepared R-MFC fibers possessed high surface area (10.74 m2/g), good aspect ratio (L/D = 30), and excellent thermal stability (Tmax = 352 °C). In addition, the fibers exhibited 3.84 wt % of phosphate groups (PO42–) with a ζ-potential of −8.4 mV and low crystallinity index (CI) of 47.5%. These R-MFC fibers were in the cellulose II polymorph, confirmed by 13C CPMAS NMR and WAXD measurements, and they were effective to anchor the growth of ZnO nanocrystals. WAXD and TEM examinations on the imbedded ZnO nanocrystals indicated that they possessed the hexagonal wurtzite crystal structure and could assemble into a flower-like morphology in the R-MFC scaffold. A R-MFC composite containing 41 wt % of ZnO nanocrystals was found to be very efficient to remove arsenic (As(V)) ions from water with the maximum capacity of 4,42...
- Subjects :
- Materials science
Renewable Energy, Sustainability and the Environment
General Chemical Engineering
chemistry.chemical_element
02 engineering and technology
General Chemistry
Zinc
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Crystallinity
chemistry
Nanocrystal
Environmental Chemistry
Thermal stability
Cellulose
0210 nano-technology
Phosphoric acid
Arsenic
Wurtzite crystal structure
Nuclear chemistry
Subjects
Details
- ISSN :
- 21680485
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- ACS Sustainable Chemistry & Engineering
- Accession number :
- edsair.doi...........e1a447648cde0fda64f3a7cf19e0c426