Musa AAA and Jatropha curcas L. sap mediated TiO2 nanoparticles: Synthesis and characterization

Agatha W. Wagutu; Kohei Yano; Kohei Sato; Eugene Park; Yoshiki Iso; Tetsuhiko Isobe

Scientific African (Nov 2019)

Musa AAA and Jatropha curcas L. sap mediated TiO2 nanoparticles: Synthesis and characterization

Agatha W. Wagutu,
Kohei Yano,
Kohei Sato,
Eugene Park,
Yoshiki Iso,
Tetsuhiko Isobe

Affiliations

Agatha W. Wagutu: Department of Pure and Applied Sciences, Kirinyaga University, P.O. Box 143-10300, Kerugoya, Kenya; Department of Materials and Energy Science and Engineering (MESE), Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. BOX 447, Arusha, Tanzania; Corresponding author at: Department of Pure and Applied Sciences, Kirinyaga University, P.O. Box 143-10300, Kerugoya, Kenya.
Kohei Yano: Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
Kohei Sato: Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
Eugene Park: Department of Materials and Energy Science and Engineering (MESE), Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. BOX 447, Arusha, Tanzania
Yoshiki Iso: Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
Tetsuhiko Isobe: Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan

Journal volume & issue: Vol. 6

Abstract

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Titanium dioxide (TiO2) nanoparticles were synthesized using East African highland banana (Musa AAA) and Jatropha curcas L. sap. The nanoparticles were characterized with X-ray diffractometry (XRD), Raman spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM). FT-IR peaks show presence of amino, carboxyl and hydroxyl groups on the crystal surface of the nanoparticles. XRD and Raman characteristic indicate anatase phases. The average crystallite size calculated from XRD peak width using Scherrer equation are 5.5 nm and 6.1 nm for Jatropha and Musa AAA sap TiO2 particles respectively. SEM images show polydispersed spherical clusters of agglomerated nanoparticles. The nanoparticles showed antimicrobial activity against gram-negative bacteria when irradiated in natural sunlight for 2 h. The sap extracts provide a simple, cheaper and more environmentally benign reducing and stabilizing agents for transforming transition metal salts into nano-scale particles, which have wide range of industrial applications. Keywords: Biosynthesis, Fourier transform infrared, Musa AAA, Raman spectroscopy, TiO2 nanoparticles, X-ray diffraction

Published in Scientific African

ISSN: 2468-2276 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science
Website: https://www.journals.elsevier.com/scientific-african

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