反应性(心理学)
化学
纳米颗粒
环糊精
水溶液
生物分子
溶解度
化学工程
粒径
形态学(生物学)
核化学
有机化学
纳米技术
材料科学
生物化学
遗传学
物理化学
病理
替代医学
工程类
生物
医学
作者
Zechao Zhuang,Lili Huang,Feifeng Wang,Zuliang Chen
标识
DOI:10.1016/j.indcrop.2015.02.027
摘要
Plant extract is used as an eco-friendly alternative to chemical and physical methods for the synthesis of nanoparticles. Improving both the dispersion and reactivity of nanoparticles using plant extract still remains a challenge. We demonstrate a green method for stabilizing the plant-mediated synthesized iron-based nanoparticles (Fe NPs) using β-cyclodextrin (βCD). The synthesized Fe NPs exhibited a highly efficient removal of azo-dye from aqueous solution (up to 215.1 mg g−1 for Direct black G). The effect of βCD on the morphology and reactivity of Fe NPs was confirmed by various techniques, which indicated that adding βCD caused particle size to decrease from 60 to 20 nm with a narrower size distribution. It also led to changes in the surface capping of Fe NPs. We concluded that βCD not only capped the Fe NPs with a hydrophobic property, but also enhanced the water solubility of the lipophilic biomolecules due to their host-guest interaction. This process provides new insights into biocompatible cyclodextrin controlling morphology and reactivity in the green synthesis of Fe NPs.
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