Enhancement of Antifouling and Antibacterial Properties of Biosynthesis Silver Nanoparticles from Parkia speciosa (Stink Bean) Polysulfone Mixed Matrix Membrane 


Vol. 26,  No. 5, pp. 1851-1866, May  2025
10.1007/s12221-025-00925-0


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  Abstract

Green biosynthesis of silver nanoparticles (bio-AgNPs) provides an eco-friendly and effective approach to enhance the antibacterial performance and biofouling resistance of mixed-matrix membranes (MMMs). In this study, bio-AgNPs were synthesized using Parkia speciosa (Stink Bean) leaf extract as a reducing agent for silver nitrate and were incorporated into polysulfone (PSf) MMM to create bio-AgNP/PSf MMM. The antibacterial and antifouling properties of the bio-AgNP/PSF MMMs were compared with those of pristine PSf membranes and commercial AgNP/PSF MMMs. As a result, bio-AgNPs significantly increased hydrophilicity with contact angles of 65°, compared to 67° for AgNP/PSF MMM and 88° for the pristine PSf membrane. Surface roughness increased to 26.09 nm (bio-AgNP/PSf MMM) and 25.27 nm (AgNP/PSf MMM) from 3.73 nm (pristine). Meanwhile, pure water flux (PWF) results showed that bio-AgNP/PSf MMM achieved 248.7 L (m2 h)−1, compared to 239.5 L (m2 h)−1 for AgNP/PSf MMM and 84.2 L (m2 h)−1 for pristine PSf membrane. The rejection rates were 98% for the bio-AgNP/PSF MMM and 97% for the AgNP/PSF MMM. The bio-AgNPs/PSf MMM produced a larger inhibition zone (> 6 nm) against Escherichia coli (E. coli) than AgNPs/PSf MMM (< 6 nm), which was attributed to flavonoids enhancing the antibacterial properties. Both MMMs showed a flux recovery ratio (FRR) exceeding 80% after physical cleaning and 98% after chemical cleaning, indicating that bio-AgNP incorporation significantly improved the antibacterial and antifouling properties of MMMs.

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  Cite this article

[IEEE Style]

F. H. Azhar, Z. Harun, K. N. Yusof, S. A. Ibrahim, R. Hussin, H. Basri, S. S. Alias, N. H. H. Hairom, "Enhancement of Antifouling and Antibacterial Properties of Biosynthesis Silver Nanoparticles from Parkia speciosa (Stink Bean) Polysulfone Mixed Matrix Membrane," Fibers and Polymers, vol. 26, no. 5, pp. 1851-1866, 2025. DOI: 10.1007/s12221-025-00925-0.

[ACM Style]

Faiz Hafeez Azhar, Zawati Harun, Khairul Nazri Yusof, Siti Aida Ibrahim, Rosniza Hussin, Hatijah Basri, Siti Salwa Alias, and Nur Hanis Hayati Hairom. 2025. Enhancement of Antifouling and Antibacterial Properties of Biosynthesis Silver Nanoparticles from Parkia speciosa (Stink Bean) Polysulfone Mixed Matrix Membrane. Fibers and Polymers, 26, 5, (2025), 1851-1866. DOI: 10.1007/s12221-025-00925-0.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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