JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2015, Vol. 50 ›› Issue (01): 76-80.doi: 10.6040/j.issn.1671-9352.0.2014.233

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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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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

CLC Number: 

  • O614.33
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