期刊
MATERIALS LETTERS
卷 156, 期 -, 页码 198-201出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.05.062
关键词
Nerium oleander leaf extract; Green synthetic method; Antioxidant activity; Crystal structure; Nanoparticles
资金
- China Ccholarship Council [2013GXZ031]
- National Natural Science Foundation of China [21271017]
- Fundamental Research Funds for the Central Universities [YS1406]
In the present work we describe the reduction of gold ions into gold nanoparticles using Nerium oleander leaf extract in the one step green synthetic method. The formation of gold nanoparticles was confirmed by UV-vis spectroscopic analysis. The gold nanoparticles were characterized by HRTEM, SEM and were found to be small size (2-10 nm), almost spherical in shape and highly dispersed without any aggregation. The XRD confirmed crystal structure of gold nanoparticles. EDX detector was used to determine the elemental composition of material. The types of organic compounds present in the plant leaves were detected by FT-IR spectral analysis. The gold nanoparticles synthesized by this method were pure and showed good antioxidant activity. The results showed that the N. oleander leaf extract is very active for reduction of gold nanoparticles. (C) 2015 Elsevier B.V. All rights reserved.
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