Scholarlink

<p>Polyvinylidene fluoride (PVDF) membranes possess excellent mechanical strength but are prone to bacterial fouling, limiting their water filtration performance. This study enhances the antibacterial properties of PVDF membranes by grafting acrylic acid (AAc) via gamma irradiation, using both pre-irradiation and simultaneous irradiation methods. Subsequent immobilization of silver (AgNPs) and copper nanoparticles (CuNPs) was performed to further improve antibacterial efficiency. Characterization using FTIR, SEM and EDX confirmed successful grafting and nanoparticle incorporation. The simultaneous irradiation method achieved a higher grafting degree (22%) than pre-irradiation (1.5%), resulting in superior nanoparticle loading (Ag: 4.21 wt%, Cu: 0.58 wt%) and antibacterial performance. Against <i>E. coli</i>, AgNP-modified membranes showed inhibition efficiencies up to 98.99%, whereas CuNP-modified membranes achieved 38.53%. These findings demonstrate that simultaneous irradiation combined with AgNP loading significantly improves the antibacterial functionality of PVDF membranes, offering a promising strategy for water treatment applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tailoring Antibacterial PVDF Membranes by Radiation-induced Acrylic Acid Grafting and Metal Nanoparticle Embedding

  • 期刊论文

  • 发表日期：

    2025年11月10日

查看全文
  • Ngoc Duy Nguyen,
  • Kieu Diem Tran Thi,
  • Ha Manh Bui

摘要

Polyvinylidene fluoride (PVDF) membranes possess excellent mechanical strength but are prone to bacterial fouling, limiting their water filtration performance. This study enhances the antibacterial properties of PVDF membranes by grafting acrylic acid (AAc) via gamma irradiation, using both pre-irradiation and simultaneous irradiation methods. Subsequent immobilization of silver (AgNPs) and copper nanoparticles (CuNPs) was performed to further improve antibacterial efficiency. Characterization using FTIR, SEM and EDX confirmed successful grafting and nanoparticle incorporation. The simultaneous irradiation method achieved a higher grafting degree (22%) than pre-irradiation (1.5%), resulting in superior nanoparticle loading (Ag: 4.21 wt%, Cu: 0.58 wt%) and antibacterial performance. Against E. coli, AgNP-modified membranes showed inhibition efficiencies up to 98.99%, whereas CuNP-modified membranes achieved 38.53%. These findings demonstrate that simultaneous irradiation combined with AgNP loading significantly improves the antibacterial functionality of PVDF membranes, offering a promising strategy for water treatment applications.