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All Journal Unesa Journal of Chemistry
Nur Azizah Wanda Triyaruhana
Universitas Negeri Surabaya
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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Sintesis Hijau Nanopartikel TiO2 Menggunakan Ekstrak Daun Belimbing Wuluh (Averrhoa blimbi L.) dan Aktivitas Antibakterinya Terhadap Escherichia coli Nur Azizah Wanda Triyaruhana; Dina Kartika Maharani
Unesa Journal of Chemistry Vol. 15 No. 3 (2026): Vol 15 No 3 (2026): On progress
Publisher : Department of Chemistry, Faculty of Mathematics and Natural Sciences, Surabaya State University, located at Jl Ketintang, Surabaya, East Java, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ujc.v15n3.p112-119

Abstract

TiO2 nanoparticles were successfully synthesized by biosynthesis method specifically green synthesis method using Averrhoa bilimbi L. (bilimbi) leaf extract as both a reducing and capping agent. The purpose of this study was to characterize the synthesized TiO2 nanoparticles and its antibacterial activity against the Gram-negative bacteria Escherichia coli. Characterization was carried out using Fourier-Transform Infrared Spectroscopy (FTIR) and X-Ray Powder Diffraction (XRD). The synthesized TiO2 nanoparticles exhibited an anatase phase, with an average crystallite size of 12.9 nm and a crystallinity of 97.81%. Antibacterial activity tests against Escherichia coli across various samples Ti-BW20 and Ti-BW40, yielded inhibition zone diameters of 7.82 mm and 9.87 mm, respectively.
Co-Authors Dina Kartika Maharani