浙江农业科学 ›› 2026, Vol. 67 ›› Issue (3): 737-742.DOI: 10.16178/j.issn.0528-9017.20240898

• 资源与环境 • 上一篇    下一篇

植物提取液制备纳米氧化镧的工艺研究

郑明(), 甄璐媛, 施秋香, 蔡盼盼, 陈董, 宋晓雨, 张玉千()   

  1. 南京师范大学泰州学院,化学与生物工程学院,江苏 泰州 225300
  • 收稿日期:2024-11-25 出版日期:2026-03-11 发布日期:2026-03-30
  • 通讯作者: 张玉千
  • 作者简介:张玉千,E-mail:zqwl2000@163.com
    郑明,研究方向为天然产物的分离纯化及微生物转化。E-mail:zm136655@163.com
  • 基金资助:
    江苏省大学生创新创业训练计划项目(202313843008Y);江苏省大学生创新创业训练计划项目(S202513843017);江苏省大学生创新创业训练计划项目(202413843009Y);江苏省自然科学基金(BK20211128)

Study on the process of preparing nano-lanthanum oxide from plant extract

ZHENG Ming(), ZHEN Luyuan, SHI Qiuxiang, CAI Panpan, CHEN Dong, SONG Xiaoyu, ZHANG Yuqian()   

  1. School of Biotechnology and Chemical Engineering,Nanjing Normal University Taizhou College,Taizhou 225300,Jiangsu
  • Received:2024-11-25 Online:2026-03-11 Published:2026-03-30
  • Contact: ZHANG Yuqian

摘要:

本文利用槐角粉和硝酸镧溶液反应合成了纳米氧化镧材料,并通过透射电镜和X射线衍射对其结构表征进行鉴定,在纳米氧化镧的合成工艺中探究了植物提取液提取方式、植物提取液体积、植物提取液pH值、硝酸镧溶液体积和反应时间对产量(沉淀质量)的影响。通过透射电镜观察到纳米氧化镧颗粒的平均直径为(84.45±0.29)nm,X射线衍射图谱基本验证了氧化镧的生成。综合单因素试验的分析结果,我们认为在利用槐角粉合成纳米氧化镧的过程中,加入40 mL植物提取液、10 mL硝酸镧溶液、pH值为6.22、加热时间为1 h时,该反应所产生的沉淀量较大,且沉淀量相较于常温搅拌方法显著增多。上述结果表明,采用槐角粉绿色合成纳米氧化镧,不仅方便快捷,而且成本低廉、环境友好,在绿色合成稀土纳米材料中具有良好的应用前景。

关键词: 绿色合成, 纳米氧化镧, 纳米技术, 稀土材料

Abstract:

In this study,we synthesized the nano-lanthanum oxide material through the reaction between the extract of Sophorajaponica powder and lanthanum nitrate solution. The structural characteristics of the material were identified using transmission electron microscopy(TEM)and X-ray diffraction(XRD). The study explored the effects of extraction method of plant extract,volume of plant extract,pH value of plant extract,volume of lanthanum nitrate solution,and reaction time on the product yield(precipitate amount)during the synthesis process of nano-lanthanum oxide. TEM observations revealed that the average diameter of the nano-lanthanum oxide particles was(84.45±0.29)nm. The XRD patterns basically confirmed the formation of lanthanum oxide. Based on the analysis results of the single-factor trials,we believed that during the synthesis of nano-lanthanum oxide using the extract of Sophora japonica powder,larger amounts of precipitate were produced under 40 mL of plant extract,10 mL of lanthanum nitrate solution,pH value of 6.22,and heating time of 1 hour,the amount of precipitate produced by this reaction was relatively large. Furthermore,the precipitate amount was significantly higher compared with the method of stirring at room temperature. The study showed that the green synthesis of lanthanum oxide nanomaterials using Sophora japonica powder was not only convenient and rapid but also cost-effective and environmentally friendly,presenting a promising prospect in the green synthesis of rare earth nanomaterials.

Key words: green synthesis, nano-lanthanum oxide, nanotechnology, rare earth material

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