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- Title
Improvement of PVDF composite membrane performance by using nanocrystals cellulose from waste pineapple leaf and g‐C<sub>3</sub>N<sub>4</sub>.
- Authors
Li, Hongbin; Dai, Jiliang; Hu, Yue; Zheng, Heshan; Ge, Xiumin; Guo, Yongqiang; Gao, Shuzhen; Liu, Chao
- Abstract
Herein, the poly(vinylidene fluoride) (PVDF) composite membranes blended with pineapple leaf nanocrystalline cellulose (PLNC) and g‐C3N4 for ultrafiltration were designed and fabricated via surface segregation during non‐solvent induced phase separation. The incorporation of PLNC and g‐C3N4 endows the PVDF composite membrane with a higher porosity, enhancing the pure water flux of PVDF/g‐C3N4/PLNC membrane by 256.75% compared to the PVDF membrane, while maintaining a higher water flux recoveries of 82.1%. Moreover, surface chemical compositions, surface and cross‐section morphologies, degree of crystallinity were also characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and X‐ray diffraction, respectively. The mechanical properties of the PVDF composite membranes were also investigated. All the above experimental data showed that the addition of PLNC and g‐C3N4 can greatly improve the performance of the PVDF membrane. The prepared modified membrane has potential application value in the field of wastewater separation and treatment.
- Subjects
PINEAPPLE; COMPOSITE membranes (Chemistry); CELLULOSE nanocrystals; FOURIER transform infrared spectroscopy; SURFACE segregation; DIFLUOROETHYLENE
- Publication
Journal of Applied Polymer Science, 2022, Vol 139, Issue 40, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.52813