第 49 卷第 6 期Vol. 49 No. 6
2019 年 12 月Dec 2019

所属栏目:功能材料

酵母菌载纳米铁的绿色合成
石国荣1,2,肖 苗1,2,徐琴琴1,戴镇璇1,候懿轩1,门俊丹1,唐忠海3* (1. 湖南农业大学 化学与材料科学学院,湖南 长沙 410128;2. 湖南农业大学资源 环境学院,湖南 长沙 410128;3. 湖南农业大学 食品科学技术学院,湖南 长沙 410128)
摘 要:采用液相还原法,以硫酸亚铁为铁前驱体,废弃烟叶提取物为还原剂,将吸附于酵母菌上的Fe(II)原位还原,制备酵母菌载的纳米铁。以2,4,6-三氯酚(2,4,6-TCP)去除为目标,考察烟叶提取溶剂、亚铁盐与酵母菌质量比、反应时间和反应温度对所制备的纳米铁去除2,4,6-TCP反应活性的影响。结果表明,当m(亚铁盐)∶m(酵母菌)=0.30∶1.00时,在室温下,加入烟叶水提取物,在室温下反应5 h制备的纳米铁适于去除2,4,6-TCP。
关键词:酵母菌;烟叶提取液;纳米铁;2,4,6-三氯酚
中图分类号:TB383  文献标识码:A  文章编号:1009-9212(2019)06-0046-03
Green Synthesis of Yeast Supported Iron Nanoparticles
SHI Guo-rong1,2*, XIAO Miao1,2, XU Qin-qin1, DAI Zhen-xuan1, HOU Yi-xuan1, MEN Jun-dan1, TANG Zhong-hai3* (1. School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China; 2. School of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; 3. School of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China)
Abstract:Yeast supported iron nanoparticles was prepared by the in situ reduction of ferrous sulfate with the water extract of tobacco leaf. The influence of synthesis conditions on the 2,4,6-trichlorophenal(2,4,6-TCP) removal activity of iron nanoparticles were investigated. The results showed that the reactivity of the as-prepared iron nanoparticles on 2,4,6-TCP removal was affected by the mass ratio of ferrous salt to yeast, the reaction time and temperature, while the extract solvent had little influence. An effective iron nanoparticles for 2,4,6-TCP removal was synthesized by the reduction of ferrous salt with water extract of tobacco leaf for 5 hours under the ferrous salt to yeast mass ratio of 0.30∶1.00.
Key words:Yeast; tobacco leaf extract; iron nanoparticles; 2,4,6-trichlorophenol
基金项目:湖南省教育厅重点项目(17A091),湖南省自然科学基金项目(2018JJ2160)。
作者简介:石国荣(1967-),女,重庆万州人,教授,博士,研究方向:功能材料制备与应用(E-mail:grshi@163.com)。
联 系 人:唐忠海,副教授,博士,主要从事食品安全质量与研究(E-mail:83715132@qq.com)。
收稿日期:2019-11-01