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논문 기본 정보

자료유형
학술저널
저자정보
Iwan Sugihartono (Universitas Negeri Jakarta) Ridha Octa Alhuriyyah Azzahra (Universitas Negeri Jakarta) Nurfina Yudasari (Universitas Negeri Jakarta) Esmar Budi (Universitas Negeri Jakarta) Riser Fahdiran (Universitas Negeri Jakarta) Widyaningrum Indrasari (Universitas Negeri Jakarta) Tan Swee Tiam (Xiamen University Malaysia) Rahmat Setiawan Mohar (National Research and Innovation Agency) Isnaeni (National Research and Innovation Agency) Djoko Triyono (Universitas Indonesia) Fera Kurniadewi (Universitas Negeri Jakarta) Agus Setyo Budi (Universitas Negeri Jakarta)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research Vol.25 No.4
발행연도
2024.8
수록면
557 - 562 (6page)

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We have demonstrated green synthesis of ZnO nanoparticles using Moringa oleifera leaves (Mor-ZnO NPs) extractby co-precipitation method under 450oC for 2 hours with different pH-5, pH-7, and pH-8. The physical properties (i.e. structural, morphology, and absorbance) have been analyzed using X-ray diffraction (XRD) measurement, scanning electronmicroscopy (SEM), and ultraviolet-visible (UV-Vis) spectrophotometer. Furthermore, to investigate the functional group andantioxidant activity we performed Fourier transform infra-red (FTIR) analysis and 2,2-diphenyl-1-picrylhydrazyl (DPPH)assay. Structurally, all samples possess polycrystalline hexagonal wurtzite structure. Morphologically, the pH values affectthe morphology of Mor-ZnO NPs. Optically, the Mor-ZnO NPs with pH-8 have strong absorption in the range of shortultraviolet (200-280 nm). We predict that the basic pH value on green synthesize of Mor-ZnO NPs tune the near band edgeabsorption (NBA), which relates to the recombination of the free excitons. Whereas, based on the FTIR spectra analysis, theZn-O stretching can be identified at 442.67 cm-1, 458.67 cm-1, and 442.67 cm-1 for Mor-ZnO NPs with the pH-5, pH-7, andpH-8, respectively. According to DPPH assay, the Mor-ZnO NPs with pH-8 at 200 mg/ml has higher inhibition rate (67.7%). Hence, we believed that the Mor-ZnO NPs are potential antioxidants.

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