期刊
CERAMICS INTERNATIONAL
卷 47, 期 1, 页码 811-816出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.08.192
关键词
Neem leaves aqueous extract; Green-hydrothermal; Hexagonal wurtzite-zinc oxide; Cubic-nickel oxide; Nanocomposites; Microstructure
资金
- Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia [IFT20018]
This study successfully synthesized zinc oxide nanorods, nickel oxide nanoparticles, and zinc oxide-nickel oxide nanocomposites through the green method of combining Neem leaf extract with hydrothermal synthesis. The samples were characterized by FTIR, XRD, SEM, and TEM, showing diverse microstructures and crystalline phases.
This work represents the synthesis of zinc oxide nanorods, nickel oxide nanoparticles, and zinc oxide-nickel oxide nanocomposites by combining Neem leave extract with hydrothermal synthesis. Five samples were prepared by green synthesis which is based on Neem leaves aqueous extract followed by hydrothermal treatment at 250 degrees C for 2.5 h. The five prepared samples are: 100% NiO (N100), 75% NiO: 25% ZnO (Z25-N75), 50% NiO: 50% ZnO (Z50-N50), 25% NiO: 75% ZnO (Z75-N25), and 100% ZnO (Z100). The prepared nanoparticles and nano -composites were characterized by FTIR, XRD, SEM, and TEM. The XRD results show that the ZnO formed as a hexagonal wurtzite phase and NiO as a cubic phase. The microstructure of the formed samples is versatile with nanorods ZnO and spherical NiO. The nanocomposites microstructure appears as a heterostructure of both oxides with NiO particles on the surface of ZnO rods. The TEM confirms the nanosize and the crystallinity of samples.
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