IOP Conference Series Materials Science and Engineering · 2020 · 26 citations · 9 references
Natural SciencesChemistryMaterials ScienceGreen ChemistryNanomaterialsNanotechnologyChemical ReactionsInorganic NanoparticlesNanomaterial CharacterizationNanomaterials SynthesisNanoparticle CharacterizationNanoparticle SynthesisExtractFace-centered Cubic LatticeFace-centered Cubic StructureGold Nanoparticle SynthesisGreen SynthesisNanoparticlesUltraviolet-visible Absorption SpectroscopyVisible Spectroscopy
Abstract The synthesis of gold nanoparticles (Au-NPs) is being accomplished by the reduction of aqueous gold metal ions, gold(III) chloride trihydrate (HAuCl 4 .3H 2 O) reacted with the aqueous flower extract of Clitoria Ternatea (CT). CT flower extract plays an important role in synthesizing Au-NPs. It acts as a reducing (Au 3+ to Au) and stabilizing agent that can eliminate the usage of chemicals during the production of Au-NPs. Besides that, it also reduces the production of unwanted by-products which would cause hazardous to the surroundings and environment. In this study, an absorption peak of Au-NPs is observed at the range of 540-550 nm from ultraviolet-visible spectroscopy (UV-vis) analysis. Furthermore, the diffraction peaks at 2θ = 38.44°, 44.41°, 65.03° and 77.58° respectively which correspond to face-centered cubic structure with (111), (200), (220) and (311) plane confirm the successful synthesis of Au-NPs. According to transmission electron microscopy (TEM), the majority of Au-NPs are spherical in shape and having a mean particle size distribution of 18.16 nm with a standard deviation of 4.67 nm.
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Neeti Jain, C.C Ohal, S.K Shroff et al. · Pharmacology Biochemistry and Behavior · 2003 · 194 citations