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

所屬欄目:功能材料

酵母菌載納米鐵的綠色合成
石國榮1,2,肖 苗1,2,徐琴琴1,戴鎮璇1,候懿軒1,門(mén)俊丹1,唐忠海3* (1. 湖南農業(yè)大學(xué) 化學(xué)與材料科學(xué)學(xué)院,湖南 長(cháng)沙 410128;2. 湖南農業(yè)大學(xué)資源 環(huán)境學(xué)院,湖南 長(cháng)沙 410128;3. 湖南農業(yè)大學(xué) 食品科學(xué)技術(shù)學(xué)院,湖南 長(cháng)沙 410128)
摘 要:采用液相還原法,以硫酸亞鐵為鐵前驅體,廢棄煙葉提取物為還原劑,將吸附于酵母菌上的Fe(II)原位還原,制備酵母菌載的納米鐵。以2,4,6-三氯酚(2,4,6-TCP)去除為目標,考察煙葉提取溶劑、亞鐵鹽與酵母菌質(zhì)量比、反應時(shí)間和反應溫度對所制備的納米鐵去除2,4,6-TCP反應活性的影響。結果表明,當m(亞鐵鹽)∶m(酵母菌)=0.30∶1.00時(shí),在室溫下,加入煙葉水提取物,在室溫下反應5 h制備的納米鐵適于去除2,4,6-TCP。
關(guān)鍵詞:酵母菌;煙葉提取液;納米鐵;2,4,6-三氯酚
中圖分類(lèi)號:TB383  文獻標識碼:A  文章編號: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
基金項目:湖南省教育廳重點(diǎn)項目(17A091),湖南省自然科學(xué)基金項目(2018JJ2160)。
作者簡(jiǎn)介:石國榮(1967-),女,重慶萬(wàn)州人,教授,博士,研究方向:功能材料制備與應用(E-mail:grshi@163.com)。
聯(lián) 系 人:唐忠海,副教授,博士,主要從事食品安全質(zhì)量與研究(E-mail:83715132@qq.com)。
收稿日期:2019-11-01
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