Synthesis of Cu(OH) 2 nanowires modified by Fe 3 O 4 @SiO 2 nanocomposite via green and innovative method with antibacterial activity and investigation of magnetic behaviours

Abstract

In this study, green synthesis of modified Cu(OH) 2 nanowires by Fe 3 O 4 @SiO 2 core–shell nanospheres was easily performed via chemical reduction. In other words, the direct coating of Cu(OH) 2 on Fe 3 O 4 @SiO 2 was successfully realized without the extra complicated procedures. Various concentrations of synthesized nanocomposites were tested on pathogenic and nosocomial bacteria. In this study, the structural information and characterization of Fe 3 O 4 @SiO 2 /Cu(OH) 2 nanowires (FSCNWs) were obtained using FE-SEM, FT-IR, EDX and X-ray diffraction. This nanocomposite can effectively kill important infectious bacteria, including Staphylococcus aureus , Escherichia coli , Staphylococcus saprophyticus , Pseudomonas aeruginosa and Klebsiella pneumoniae . Studies have shown that FSCNW nanocomposites affect common antibiotic-resistant bacteria. This result confirms the function of FSCNW as an effective, beneficial and environmentally friendly antibacterial agent that can used in a wide range of applications in medicine. FSCNWs can be separated conveniently from bacteria-containing solutions using a magnet. Compared with nanocomposites based on other metals such as silver and gold, the use of FSCNWs in water treatment has been recommended because of the precursor of copper for its low price and less toxicity. In addition to its special properties such as mild reaction conditions, green synthesis methods, admissible magnetic properties, easy separation, high antibacterial activity and beneficial efficiency.