The effect of ph on zinc oxide nanoparticles characteristics synthesized from banana peel extract
This paper presenting synthesization process producing Zinc Oxide (ZnO) Nanoparticles (NPs) from banana peels (Jackfruit banana) extract (BPE) at different pH conditions. The samples were then characterized to identify the optimum pH condition for producing ZnO NPs and determine the crystallite and...
| 总结: | This paper presenting synthesization process producing Zinc Oxide (ZnO) Nanoparticles (NPs) from banana peels (Jackfruit banana) extract (BPE) at different pH conditions. The samples were then characterized to identify the optimum pH condition for producing ZnO NPs and determine the crystallite and particles size of ZnO. Sol-gel method used to synthesize the ZnO NPs and this method is eco-friendly, less time consumption, cost effective and easy to be conducted. BPE is one of the raw materials that has the ability to act as stabilizer and reducing agent. The samples were characterized using Fourier Transform Infrared Red (FTIR) Spectroscopy, UV-visible (UV-Vis), X-ray diffraction (XRD) and Brunaner-Emmett-Teller (BET). It was found that the presence of ZnO was recorded from FTIR spectra at wavenumber 350-390 cm-1 for all samples, which indicated the presence of ZnO bond. The absorption peak recorded from UV-Vis spectrophotometer showed the highest absorption peak at 367 nm and the band gap was 3.38 eV at pH 12. Hexagonal wurtzite structure of ZnO nanoparticles obtained from the XRD analysis with range of crystalline size between 16 to 23 nm and the smallest crystallite size was the smallest at pH 12. BET analysis showed that the surface area of ZnO NPs was between 15 to 53 m2/g and the average particle sizes of ZnO NPs were between 20 to 66 nm. As a conclusion, ZnO NPs can be produced from BPE at optimum pH of 12. © 2019 Trans Tech Publications Ltd, Switzerland. |
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| ISSN: | 10139826 |
| DOI: | 10.4028/www.scientific.net/KEM.797.271 |