In-Situ Deposition of Metal Oxides Nanoparticles in Cellulose Derivative and Its Utilization for Wastewater Disinfection

Abstract

The target of this work is to investigate and assess the utilization of the synthesized in-situ deposition of metal oxide nanoparticles such as nano-nickel oxide (nNiO), nanocopper oxides (nCuO) and nanoiron oxides (nFe3O4) in aminated cellulose (Acell), as a protected and compelling antibacterial channel of contamination from domestic wastewater. The prepared Acell and nNiO/Acell, nCuO/Acell and nFe3O4/Acell nanocomposites were characterized by field emission-scanning electron microscopy (FE-SEM), Fourier transform-infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy, transmission electron microscopy (TEM), selected area diffraction pattern (SAED) and X-ray diffraction techniques (XRD). TEM declared the synthesis of nNiO, nCuO and nFe3O4 with regular size of 10, 23 and 43 nm, correspondingly. The antibacterial impact of both nNiO/Acell, nCuO/Acell and nFe3O4/Acell nanocomposites was inspected against Gram-positive microorganisms (Enterococcus faecalis, Staphylococcus aureus) and Gram-negative microbes (Escherichia coli, Salmonella typhi) utilizing agar disk diffusion routes. Furthermore, the ability of the synthesized nanocomposites as sterilizers for optional domestic wastewater was studied. The data for the disk diffusion obtained revealed that nFe3O4/Acell had a greater antibacterial impact than nCuO/Acell and nNiO/Acell. In addition, the purification of domestic wastewater utilizing 1.0 mg of nFe3O4, nCuO and nNiO in 1 gm of Acell was accomplished by killing 99.6%, 94.5% and 92.0% of total and fecal coliforms inside 10 mins, respectively.

Green, Eco-Friendly, Highly Biocompatible and Bioactive Nanocomposite-Based Biopolymers Loaded with ZnO@Fe3O4 Nanoparticles

“…The formulation of ZNO@Fe 3 O 4 NPs was carried out in situ during the preparation of nanocomposite-based biopolymers, namely, casein and starch, according to previous studies with minor modifications [39,40]. In detail, one gram of soluble casein was dissolved in 100 mL 1% acetic acid solution.…”

Flow rate impact on the performance of immobilized nanoFeCu for sewage treatment and its reusability

“…Gouda et al [24] Chitosan TiO 2 Provide a large area for TiO 2 immobilization. Chitosan reduced the performance of TiO 2 .…”

“…The nanoparticles were well immobilized on aminated cellulose and clay, without a sign of leaking. [ 24 ] Chitosan and cellulose nanocrystal (CNC) are good mediums for immobilization due to their hydrophilicity, but minimum leaking of nanoparticles could be observed. [ 26 ] In previous studies, clay was proven to be a stable medium for nanoFeCu immobilization.…”