Green synthesis for nanoparticles using microorganisms, enzymes, and
plants leaf or plant extracts have been indicated as
possible ecofriendly preferences to chemical and physical methods. In
this paper, we report the synthesis of zinc oxide particles
by green method. Highly stable and hexagonal zinc oxide nanoparticles
were produced by using zinc nitrate and green tea leaf
extract. Structural, morphological and optical properties of the
synthesized nanoparticles have been characterized by using UV–Vis
spectrophotometer, FTIR, SEM, and XRD analysis. The synthesis of
nanoparticles of zinc oxide was observed by the color changing
of the chemical solution. Powder X-ray diffraction and SEM analysis
revealed the synthesis of both Zn and ZnO nanoparticles with
average particle size of 60nm. Shape of zinc oxide nanoparticles was
hexagonal with the range 80-120nm. UV spectra confirmed the
presence of zinc oxide nanoparticles. FTIR showed the peaks of zinc
oxide nanoparticles as well as the presence of other compounds.
Melachite green dye has been removed by using zinc oxide nanoparticles
prepared from green tea leaf extract. The green color of the
dye was removed up to 70% with the use of reducing agent sodium
borohydrate. Removal of melachite green dye was performed.
Other applications of zinc oxide nanoparticles in the medicine, pharma,
biotechnology and industries were discussed.
https://lupinepublishers.com/nano-science-nano-technology-journal/fulltext/removal-of-melachite-green-dye-by-using-zinc-oxide-nanoparticles-prepared-by-the-green-synthesis-by-using-camellia-sinensis.ID.000120.php
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