Rauvolfia serpentina-Mediated Green Synthesis of CuO Nanoparticles and Its Multidisciplinary Studies

Copper oxide nanoparticles （CuO Nps） were successfully synthesized by solution combustion method using aqueous leaf extract of Rauvolfia serpentina as a fuel. The structure and morphology of the CuO nanoparticles （Nps） were characterized by powder X-ray diffraction （PXRD）, UV-visible spectroscopy （U...

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Bibliographic Details
Published in:Acta metallurgica sinica : English letters 2015-09, Vol.28 (9), p.1134-1140
Main Authors: Lingaraju, K., Naika, H. Raja, Manjunath, K., Nagaraju, G., Suresh, D., Nagabhushana, H.
Format: Article
Language:English
Subjects:
Bacteria
Bacterial infections
Catalytic activity
Characterization and Evaluation of Materials
Chemicals
Chemistry and Materials Science
COMBUSTION
COPPER OXIDE
Copper oxides
Corrosion and Coatings
Crystallites
E coli
Leaves
Materials Science
Metallic Materials
Multidisciplinary research
Nanoparticles
Nanotechnology
Organometallic Chemistry
PARTICLES
Photocatalysis
Photodegradation
Pseudomonas
Radiation
Scanning electron microscopy
Spectroscopy/Spectrometry
Staphylococcus aureus
Transmission electron microscopy
Tribology
X ray powder diffraction
X射线粉末衍射
扫描电子显微镜
紫外-可见光谱
纳米氧化铜
绿色合成
萝芙木
铜纳米粒子
铜纳米颗粒
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Summary:Copper oxide nanoparticles （CuO Nps） were successfully synthesized by solution combustion method using aqueous leaf extract of Rauvolfia serpentina as a fuel. The structure and morphology of the CuO nanoparticles （Nps） were characterized by powder X-ray diffraction （PXRD）, UV-visible spectroscopy （UV-visible）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, etc. The PXRD patterns reveal the formation of monoclinic phase with crystallite structure. SEM images indicate that the particles have sponge-like structure being highly porous and agglom- erated with large surface area. The average crystallite sizes were found to be in the range of 10-20 nm by Scherrer＇s method. The CuO Nps size was further confirmed by TEM. Further, CuO Nps exhibit good photocatalytic activity for the photodegradation of trypan blue dye, indicating that it acts as a promising semiconducting material. The antibacterial properties of CuO nanoparticles were investigated against pathogenic bacterial strains, namely Gram -ve Escherichia coli （NCIM-5051） and Pseudomonas desmolyticum （NCIM-2028） and Gram ＋ve bacteria Staphylococcus aureus （NCIM- 5022） using the agar well diffusion method.
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-015-0304-y