Abstract
In this study, a novel PVC/tourmaline ultrafiltration membrane was fabricated by phase inversion method in order to improve anti-fouling performance and water quality. FESEM was used to examine the changes in the morphology of pure PVC and PVC/tourmaline hybrid membranes. The introduction of tourmaline resulted in the increase of porosity and mean pore size. EDX images indicated that tourmaline particles were homogeneously dispersed in the membranes when the amount were less than 1.0 wt%. The hybrid membranes exhibited lower contact angle (78.7°) and higher water flux (121.3 L/m2 h) than the pure PVC membrane. The anti-fouling performance of the membranes were studied by filtration of BSA solution. The results demonstrated that the hybrid membrane with 1.0 wt% tourmaline particles exhibited the best anti-fouling performance and the highest BSA rejection. In addition, the pH and conductivity of the filtered water were measured by pH meter and electrical conductivity meter. And the results showed that the quality of the filtered water was improved after treating through the hybrid membranes.
Funding source: Science and Technology Plans of Tianjin
Award Identifier / Grant number: 17YFZCSF01230
Award Identifier / Grant number: 17PTSYJC00040
Award Identifier / Grant number: 18JCYBJC18100
Award Identifier / Grant number: 18PTSYJC00180
Funding source: University of Ministry of Education of China
Award Identifier / Grant number: IRT-17R80
Funding source: University of Tianjin
Award Identifier / Grant number: TD13-5044
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was financially sponsored by the Science and Technology Plans of Tianjin (nos. 17YFZCSF01230, 17PTSYJC00040, 18JCYBJC18100 and 18PTSYJC00180), Program for Innovative Research Team in University of Ministry of Education of China (no. IRT-17R80), and Program for Innovative Research Team in University of Tianjin (no. TD13-5044).
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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