Assessment of antioxidant and antibacterial activities of Zinc Oxide nanoparticles, Graphene and Graphene decorated by Zinc Oxide nanoparticles

Biosynthesis of Zinc Oxide Nanoparticles using Intracellular Extract of Saccharomyces cerevisiae and Evaluation of its Antibacterial and Antioxidant Activities

Introduction: Attention to the biosynthesis of nanoparticles (NPs) has been increased recently since they are cost-effective, eco-friendly, and potential alternatives to chemical and physical methods. This study aimed to synthesize zinc oxide nanoparticles (ZnO NPs) using an intracellular extract of Saccharomyces cerevisiae. Moreover, it was attempted to evaluate their antibacterial and antioxi...

Defluoridation of Aqueous Solution by Graphene and Graphene Oxide Nanoparticles: Thermodynamic and Isotherm Studies

Fluoride, a non-essential element, can enter water resources through several natural processes and human activities. The benefits and risks of fluoride depend on the concentration of this anion on drinking waters. In the present study, the performances of graphene and graphene oxide nanoparticles were investigated for the removal of fluoride from aqueous solution. In the present resea...

Synthesis,characterization and Antibacterial Properties of Zinc Oxide Nanoparticles

Dye removal from water by zinc ferrite-graphene oxide nanocomposite

In this work, zinc ferrite magnetic and zinc ferrite-graphene oxide nanocomposite were synthesized through a facile hydrothermal method and dye removal capability as an adsorbent were studied. Fourier transform infrared spectroscopy FT-IR, X-ray diffraction XRD and scanning electron microscopy SEM were used to characterize the synthesized nanocomposite. The UV-Vis results showed that the additi...

Enhanced conductivity of reduced graphene oxide decorated with aluminium oxide nanoparticles by oxygen annealing.

A process involving the filtration of graphene oxide (GO) dispersion through an alumina membrane, followed by oxygen annealing to synthesize alumina nanoparticles exclusively at the edges of holes or vacancies in the reduced graphene oxide (rGO) plane, is used to prepare paper-like composites with a 21% enhanced electrical conductivity. Moreover, the rGO/alumina nanocomposites have a smaller ba...

Photocatalytic Degradation of Triton X-100 by Zinc oxide Nanoparticles

In this study the application of ZnO nanoparticles to UV photocatalytic degradation of nonionic surfactantTriton X-100 in aqueous media was investigated. The affecting factors on the photodegradation such as TritonX-100 initial concentration, nanocatalyst weight, pH, temperature and other parameters were studied anddescribed in details. The degradation rate was found to be strongly influenced b...