Work

Synthesis and antibacterial properties of nanosilver-modified cellulose triacetate membranes for seawater desalination

Year: 2025

Type: article

Abstract: To address the issue of biological pollution in cellulose triacetate (CTA) membranes during seawater desalination, silver (Ag) nanoparticles were incorporated onto the CTA surface using polydopamine (PDA). PDA, which contains phenolic and amino groups, exhibits excellent adhesiveness and provides active sites for the attachment and reduction for Ag nanoparticles. Various characterizations confirm the successful introduction of Ag nanoparticles onto the surface of the PDA-modified CTA (PCTA) membrane and the preservation of CTA microstructures. Antibacterial testing demonstrates that the Ag@PCTA membrane exhibited excellent antibacterial properties. Antibacterial ring experiments revealed significant bactericidal activity against five different bacterial strains, namely, Bacillus cereus , Bacillus thuringiensis , Lysinibacillus xylanilyticus , Lysinibacillus lparviboronicapiens and Burkholderia ambifaria . Moreover, water flux and salt rejection rates of the Ag@PCTA membrane were comparable to those of the parent CTA membrane.

Source: Beilstein Journal of Nanotechnology

DOI: 10.3762/bjnano.16.100

Authors: Lei Wang, Shizhe Li, Kexin Xu, Wenjun Li, Ying Li, Gang Liu

Institution: Jilin Engineering Normal University

Language: English

Topic: Membrane Separation Technologies

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Good health and well-being

Open Access status: diamond

Funders: Natural Science Foundation of Jilin Province, Northeast Normal University, People's Government of Jilin Province, Education Department of Jilin Province