Effectiveness of different CuO morphologies nanomaterials on the permeability, antifouling, and mechanical properties of PVDF/PVP/CuO ultrafiltration membrane for water treatment.

Autor: Pakan M; Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran., Mirabi M; Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran. Electronic address: m_mirabi@sbu.ac.ir., Valipour A; Water and Wastewater Research Center (WWRC), Water Research Institute (WRI), Bahar Blvd., Tehran, Iran. Electronic address: alirezavalipour.envi@gmail.com.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2023 Oct; Vol. 337, pp. 139333. Date of Electronic Publication: 2023 Jun 26.
DOI: 10.1016/j.chemosphere.2023.139333
Abstrakt: The hydrophobic nature of Poly (vinylidene fluoride) (PVDF) is a significant barrier to use in ultrafiltration, resulting in fouling, flux decline, and reduced lifespan in water treatment. This study examines the effectiveness of different morphologies of CuO nanomaterials (NMs) (spherical, rod, plate, and flower), synthesized by the facile hydrothermal method, to modify PVDF membrane with PVP additive for improving the performance of water permeability and antifouling. Such membrane configurations with different morphologies of CuO NMs improved hydrophilicity with a maximum water flux of 222-263 L m -2 h -1 compared to 195 L m -2 h -1 for the bare membrane and exhibited excellent thermal and mechanical strengths. The characterization results exhibited that plate-like CuO NMs were dispersed uniformly in the membrane matrix, and their incorporation as a composite improved the membrane properties. From the antifouling test with the bovine serum albumin (BSA) solution, the membrane with plate-like CuO NMs had the highest flux recovery ratio (FRR) (∼91%) and the lowest irreversible fouling ratio (∼10%). The antifouling enhancement was due to less interaction between modified membranes and foulant. Further, the nanocomposite membrane showed excellent stability and negligible Cu 2+ ion leaching. Overall, our findings provide a new strategy for developing inorganic nanocomposite PVDF membranes for water treatment.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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