1. Bismuth nitrate+ PVP+EG
Microwave-assisted Synthesis of Bismuth Oxide Nanoflower:Effect of heating time on morphology, and its antimicrobial activity Vaishali Sonkusarea, Jay Tannab, R. G. Chaudharyb and H. D. Junejaa aPGTD of Chemistry, RTM Nagpur University, Nagpur, Maharashtra (INDIA) bP. G. Department of Chemistry, S. K. Porwal College, Kamptee, Maharashtra (INDIA
ABSTRACT
RESULTS AND DISCUSSION
Bi2O3 NPs were synthesized by a microwave-mediated (MW-A) technique and characterized by XRD, FTIR, EDS, SEM, TEM AFM and TG/DTG. SEM suggested nanoflower and nanospindle. TEM investigated average particle size is 5-20 nm. AFM confirmed roughness and crystallanity. Antibacterial activities also performed by agar well diffusion method.
INTRODUCTION
XRD pattern
Recently, Bi2O3 NPs gaining tremendous attention in scientific community due to their unique properties and hence employed for various applications such as electrochemical sensor, conductivity, optics, photocatalysts and biomedical[1-2]
Fig. 1 XRD of Bi2O3: (A) conventional, (B-C) MW-A for 10 & 15 min, (D) FT-IR (15 min), EDS spectra (E) conventional and (F) 15 min.
Fig. 3 TEM of Bi2O3: (A-B) conventional, (C-E) MW-A, (F) TEM, and AFM (G) 3D, and (H) 2D.
Fig. 4 Antibacterial of γ-Bi2O3: (A) Standard antibiotic test, (B) standard deviation of 25 µg/ml NPs
EXPERIMENTAL
Bismuth nitrate+ PVP+EG
Hydrazine hydrate
Bi2O3 NPs
CONCLUDING REMARKS
Study revealed dominant influence morphology, Monoclinic α-Bi2O3 microflower shifted to cubic γ-Bi2O3 microspindle
Enhanced antibacterial activity of γ-Bi2O3 microspindle against Pa was observed
REFERENCES
1. M. Weber, M. Schlesinger, M. Mehring, Cryst. Growth Design. 16 (2016)
2. M. M. Patil, V. V. Deshpande, S. R. Dhage, V. Ravi, Mater. Lett. 59 (2005)
Fig. 2 SEM images of synthesized Bi2O3: (A-C) conventional, (D-F) MW-A for 10 min, and (G-I) 15 min.
ACKNOWLEDGEMENT
Authors thank to SERB/DST for financial assistants.