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山东大学学报（理学版） ›› 2015, Vol. 50 ›› Issue (01): 76-80.doi: 10.6040/j.issn.1671-9352.0.2014.233

• 论文 • 上一篇    下一篇

绿色调制协同法制备复合结构的Eu-MOF材料

王梅, 郭海玲, 刘晨光, 蔡大妮   

  1. 中国石油大学(华东)化学工程学院, 山东 青岛 266580
  • 收稿日期:2014-05-20 修回日期:2014-11-17 出版日期:2015-01-20 发布日期:2015-01-24
  • 通讯作者: 郭海玲(1981-),女,博士,副教授,研究方向为无机多孔材料的制备与性能研究.E-mail:guohl@upc.edu.cn E-mail:guohl@upc.edu.cn
  • 作者简介:王梅(1990-),女,硕士,研究方向为无机多孔材料的制备与性能研究.E-mail:1130122618@qq.com
  • 基金资助:
    国家自然科学基金资助项目(21201180)

Green modulation collaborative prepared hierarchical Eu-MOF material

WANG Mei, GUO Hai-ling, LIU Chen-guang, CAI Da-ni   

  1. Department of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China
  • Received:2014-05-20 Revised:2014-11-17 Online:2015-01-20 Published:2015-01-24

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摘要： 开发了一种绿色调制协同法合成分层结构的稀土金属有机骨架材料Eu(BTC)(H2O)6,解决了传统合成方法中使用大量的、有毒有机溶剂的难题,用乙醇和碱性添加剂代替传统的有毒溶剂DMF。首先用乙醇将有机配体溶解,然后加入碱性添加剂使有机配体去质子化,从而使其与金属中心Eu3+成功配位,通过添加剂的-COO-与BTC配体的-COO-竞争与Eu3+的配位合成形貌各异的Eu(BTC)(H2O)6晶体。绿色调制协同法,利用碱性物质乙酸钠和甲酸钠作为调制剂成功制备了多种形貌的Eu(BTC)(H2O)6,包括十字花状晶体、小麦状晶体、麻花状晶体、花状晶体、稻草捆状晶体和杂乱的稻草捆状晶体。这些多形貌的晶体利用粉末X射线衍射、扫描电子显微镜、红外光谱和热重等表征确定了晶体的结构、形貌及化学组成。

关键词: 绿色调制协同法, 复合结构, 稀土金属有机骨架材料

Abstract: This paper developed a green coordination modulation method to synthesize hierarchical lanthanide coordination polymers Eu(BTC)(H2O)6. Ethanol and alkaline additives instead of conventional toxic solvents DMF were used as organic solvent and modulator respectively. The role of alkaline additives (sodium acetate and sodium formate) in tailoring the crystal morphology is related to its basicity (increase nucleation rate) and capping groups (COO-) (prevent crystallites from growing). Various morphologies of Eu(BTC)(H2O)6 crystals were obtained, including cross-flowerlike crystals, wheat-like crystals, twist-like crystals, flowerlike crystals, straw-sheaflike crystals and unorganized straw-sheaflike crystals. These crystals were characterized by X-ray diffraction, SEM, FT-IR and TGA to determine their structure, morphology and chemical composition.

Key words: green coordination modulation method, rare earth metal-organic frameworks, hierarchical architectures

中图分类号: 

  • O614.33
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