Highly efficient bacterial removal and disinfection by magnetic barium phosphate nanoflakes with embedded iron oxide nanoparticles

Abstract

Highly efficient bacterial removal and disinfection of drinking water by recyclable magnetic barium phosphate nanoflakes with embedded iron oxide nanoparticles.

Effective water disinfection using magnetic barium phosphate nanoflakes loaded with Ag nanoparticles

“…Synthesis of FBP nanocomposites. Fe 3 O 4 NPs (size of~100 nm) were obtained according to previous work (Song et al, 2018). The magnetic FBP nanoflakes were prepared through a simple hydrothermal method without toxic reagents and organic solvents.…”

“…The surface area of FBPA1 was 11.5 m 2 /g with a Barrett-Joyner-Halenda (BJH) adsorption cumulative pore volume of 0.053 cm 3 /g. FBPA10 possess a higher surface area of 12.2 m 2 /g and BJH adsorption cumulative pore volume of 0.062 cm 3 /g, which may be beneficial to disinfection control due to more exposed active sites (Song et al, 2018).…”

“…Embedding Fe 3 O 4 NPs in the Ag-phosphate nanocomposites instead of TiO 2 may allow a simple magnetic separation after treatment. Importantly, Fe 3 O 4 NPs possess flocculation (Song et al, 2018) and protein oxidation effect towards bacteria (Inbaraj et al, 2012;Singh et al, 2011;Tran et al, 2010) which may lead to more effective bacteria adsorption and disinfection process.…”

“…Very recently, a cost-effective magnetic Fe 3 O 4 barium phosphate (FBP) nanoflake was reported to be effective in adsorption and disinfection of E. coli. (Song et al, 2018). In the present work, a simple, green synthesis method has been developed to load Ag NPs on the surface of the FBP nanoflakes through reduction of Ag þ and then deposition of Ag 0 .…”

Synthesis and characterization of magnetic nanoparticles of cobalt ferrite coated with silica

“…Iron oxide nanoparticles [1] and their mixtures [2] have been extensively studied in several areas such as physics [3] chemistry [4], materials science[5], biology [6] and medicine [7] due to their unusual properties [8]. Magnetic nanoparticles became a topic of interest over the last decade because of their applicability in data storage [9], catalysis [10], magnetic paint [11], environmental decontamination [12], microelectronics [13], highdensity magnetic recording [14], magnetic refrigeration [15] with therapeutic applications in biomedical [16], cell separation [17] and cancer treatment.…”