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. 2017 Spring;16(2):756-762.

Synthesis of Titanium Dioxide Nanoparticles Using Echinacea purpurea Herba

Renata Dobrucka  1
Affiliations

Synthesis of Titanium Dioxide Nanoparticles Using Echinacea purpurea Herba

Renata Dobrucka. Iran J Pharm Res. 2017 Spring.

Abstract

Nowadays green synthesis of metal nanoparticles is a developing area of research. In this study, titanium dioxide nanoparticles were biosynthesized using an aqueous solution of Echinacea purpurea herba extract as a bioreductant. This is novel and interesting method for synthesis of TiO2 nanoparticles. The prepared titanium dioxide nanoparticles were characterized using ultraviolet-visible spectroscopy (UV-VIS), transmission electron microscopy (SEM), total reflection X-Ray fluorescence analysis (TXRF) and Fourier-transform infrared spectroscopy (FTIR). The size of TiO2 nanoparticles was found to be in the range of 120 nm. Moreover, the alkaline reaction of the solution (pH = 8) resulted in the increase in absorbance (280 nm), which facilitates the growth of the number of TiO2 nanoparticles in the studied solution. Also, synthesis of TiO2 nanoparticles using green resources like Echinacea purpurea herba is a better alternative to chemical synthesis, since this green synthesis is pollutant-free and eco-friendly.

Keywords: Echinacea purpurea; green-synthesis; nanotechnology; titanium dioxide nanoparticles.

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Figures

Figure 1
Figure 1
Schematic illustration of the green synthesis of TiO2 nanoparticles using aqueous extract of the E. purpurea herba, a) E. purpurea plant, b) E. purpurea powder, c) plant extract solution, d) plant extract with 1mM TiO2
Figure 2
Figure 2
UV-Vis absorption spectra of titanium nanoparticles synthesized using E. purpurea herba extract
Figure 3
Figure 3
UV-Vis absorption spectra of titanium nanoparticles (pH = 2 and pH = 8 after preparation and after 24 h) synthesized using E. purpurea herba extract
Figure 4
Figure 4
Scaning electron microscopy of titanium nanoparticles synthesized using E. purpurea herba extract. The scale bar: a) 10 μM, b) 20 μM
Figure 5
Figure 5
Scaning electron microscopy of titanium nanoparticles synthesized using E. purpurea extract and EDS profile, a) Image Pixel Size: 2.51 µM , b) Image Pixel Size: 0.10 µM
Figure 6
Figure 6
FTIR spectra of titanium nanoparticles synthesized using E. purpurea herba extract
Figure 7
Figure 7
TXRF spectrum of titanium nanoparticles synthesized using E. purpurea herba extract
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