Synthesis of TiO2 Nan particles by Using Sol-Gel Method and Its Applications as Antibacterial Agents

Abstract

TiO 2 nanoparticles were prepared from TiCl 4 as a precursor with ethanol solution with 1:10 ratio in ambient atmosphere, without additive. Sol-gel synthesized has been dried and calcined at (550-600)°C. The structure, morphology and the particle size of the nanoparticles were investigated by X-ray Diffraction and Scanning Electron Microscopy (SEM). The optical properties were studied by UV-Visible Spectrophotometer. Results showed that the anatase phase was only in titanium dioxide powder up to 500. The average grain size of TiO 2 nanoparticles was obtained in the range of (3-30) nm. The synthesized TiO 2 nanoparticles in 10 -5 and 10 -3 concentrations exhibited superior antibacterial activity with two types of bacteria, Escherichia coli (E-coli) and Staphylococcus aurous respectively. TiO 2 nanoparticles are more efficient as antibacterial agents with Staphylococcus aurous as compared with E-coli.

Polyamide Electrospun Nanofibers Functionalized with Silica and Titanium Dioxide Nanoparticles for Efficient Dye Removal

“…Figure 5b relates to the spectrum of the PS sample and indicates the presence of a diffraction peak at 23.4 • that belongs to amorphous SiO 2 NPs [48]. The spectrum of the PT sample (Figure 5c) emphasizes the presence of the anatase phase, which is confirmed by the presence of a peak at 37.77 • (101 plane), while the spectrum of the PST sample illustrates the presence of a peak at 23.4 • that shows the presence of SiO 2 and also a peak at 25.1 • (004 plane) related to anatase [49,50]. The results of the XRD analysis confirm the successful loading of NPs into the nanofibrous mats; the phase of TiO 2 is anatase, which is important in applications for water purification due to its photocatalytic effect [30].…”

Surface properties of nano‐TiO2 synthesized from two different TiO2 precursor sources by an alkaline hydrothermal process followed with a H2O2 treatment: Experiments combined with statistical analysis

“…Figure 1(A) shows the XRD patterns of M‐TiO 2 precursor and synthesized TiO 2 with different NaOH concentrations of 5 M and 8 M named M5 and M8 , respectively. The diffraction peaks were at 2–theta of 25.33 o , 37.82 o , and 48.08 o respectively corresponding to lattice planes of (101), (004), and (200) [ 12 ] which characterized for anatase phase (JCPDS files No.21‐1272). In comparison with M–TiO 2 , the products showed rough baselines, and diffraction peaks with broader line widths indicating lower crystallinity.…”

<i>In Situ</i> Synthesis of SiO₂ Nanoparticles by Sol-Gel Method on Cotton Fabrics and Investigation of their Physical and Chemical Properties

“…Among them, Cotton fiber is the purest cellulose and is the maximum rich polymer in the environment [15] for usage in many applications due to its availability, feel comfortable, fair mechanical strength, high durability, and cost -effectiveness. [14] SiO2 nanoparticles have been synthesized on cotton fabrics using various methods such as hydrothermal [16], chemical vapor condensation [17], direct oxidation [18], sol-gel technique and others. [16,19] In this work, In-Situ synthesis of SiO2 nanoparticles on cotton fabric was performed by a simple method namely sol-gel with tetraethyl orthosilicate (TEOS) as a precursor in the presence of acid and alkaline indicators.…”

“…[14] SiO2 nanoparticles have been synthesized on cotton fabrics using various methods such as hydrothermal [16], chemical vapor condensation [17], direct oxidation [18], sol-gel technique and others. [16,19] In this work, In-Situ synthesis of SiO2 nanoparticles on cotton fabric was performed by a simple method namely sol-gel with tetraethyl orthosilicate (TEOS) as a precursor in the presence of acid and alkaline indicators. The main aim of this project is to improving the flame retardant properties of cotton fabric.…”