Abstract
The synthesis of zinc oxide (ZnO) nanoparticles is an emerging research area due to its wide range of applications, such as electronics, pharmaceuticals, optics and food packaging. In this study, described <br />the green synthesis of ZnO nanoparticles and their characteristics using Sargassum sp. extract and 0.1 M zinc nitrate as the precursors. The variations include Sargassum sp. extracts volume of 5, 10, and 20<br />mL and the calcination temperature of 400, 500, and 600 oC. The characterization had been done such as the role of Sargassum sp. extract as a reducing agent for Zn2+ → Zn0 confirmed by Fourier Transform <br />Infrared Spectroscopy (FTIR) spectra due to 450-4000 cm-1 wavelength, the size of particles using Particle Size Analyzer (PSA), image and chemical composition using Scanning Electron Microscopy with X-ray microanalysis (SEM-EDS) and crystallinity using ray powder diffraction (XRD) with Cu anode at 1.54187 Å. Analysis with PSA instrument showed that ZnO particle size increased from 607 up to 649 nm along with increasing of extract concentration from 5 up to 20% (v/v). SEM imaging showed the formation of ZnO to be predominantly spherical and EDS data confirmed the existence of zinc and oxygen in the particles obtained. XRD analysis revealed hexagonal crystal system of ZnO nanoparticles and decreased in crystallite size was observed from 31.4 to 14.7 nm with increased in calcination temperature from 400 to 600 oC.
Highlights
Penelitian yang melibatkan riset dan pengembangan teknologi pada skala atom, molekul, makromolekul mulai bergeser ke era nanoteknologi
The characterization had been done such as the role of Sargassum sp. extract as a reducing agent for Zn2+ → Zn0 confirmed by Fourier Transform Infrared Spectroscopy (FTIR) spectra due to 450-4000 cm-1 wavelength, the size of particles using Particle Size Analyzer (PSA), image and chemical composition using Scanning Electron Microscopy with X-ray microanalysis (SEM-EDS) and crystallinity using ray powder diffraction (XRD) with Cu anode at 1.54187 Å
Analysis with PSA instrument showed that zinc oxide (ZnO) particle size increased from 607 up to 649 nm along with increasing of extract concentration from 5 up to 20% (v/v)
Summary
Bahan yang digunakan dalam penelitian ini yaitu rumput laut cokelat Sargassum sp. dari perairan Binuangeun, Banten Selatan. Bahan yang digunakan dalam penelitian ini yaitu rumput laut cokelat Sargassum sp. Bahan kimia yang digunakan adalah ZnO standar Sigma aldrich, Zn(NO3)2.4H2O (Merck), NaOH (Merck), HCl (Merck), KBr (Merck) dan etanol (Merck). Alat yang digunakan adalah coolbox (Marina Cooler) kapasitas 500 liter, hammer mill, hot plate (Labinco LD-844), freeze dryer (Christ Beta 2-8 LD plus), pen type pH meter009(I), oven vacuum (Shellab), dan furnace (Thermo Scientific F47920). Intrumentasi TGA (Q50 V20) untuk menentukan kisaran suhu kalsinasi, Fourier transform infrared spectroscopy (FT-IR) (Spectrophotometers Perkin Elmer), Particle Size Analyzer (PSA) (Beckman Coulter) mengukur distribusi ukuran partikel, SEM/EDS (Scanning Electron Microscopy/Energy Dispersive Spectroscopy) (Jeol) untuk morfologi, dan X-ray Diffraction (XRD) (Shimadzu XRD-7000 Maxima) untuk kristalinitas
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
