A double rare earth organic framework material for physiological temperature detection and its preparation method
A technology of organic framework and physiological temperature, which is applied in the field of double rare earth organic framework materials and its preparation, and achieves the effects of simple preparation method, high yield and high sensitivity
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example 1
[0019] Using europium nitrate, terbium nitrate and organic ligands of 4,5-bis(4'-carboxyphenyl) phthalic acid, double rare earth organic framework materials were synthesized by solvothermal method, x=0.15, and the specific synthesis route is as follows:
[0020] Combine 0.0405mmol europium nitrate and 0.2295mmol terbium nitrate (molar ratio Eu 3+ : Tb 3+ = 3:17) and 0.09mmol of 4,5-bis(4'-carboxyphenyl) phthalic acid organic ligand dissolved in 7.5ml N,N-dimethylformamide, and another 16ml deionized water, 10ml ethanol and 500μl acetic acid were added to it to prepare a mixed solution, and then put it into a closed reaction kettle, and react at a constant temperature of 80°C for 24 hours to obtain the double rare earth organic framework material Tb 0.85 Eu 0.15 L, the yield is 70%.
[0021] The obtained double rare earth organic framework material is colorless and transparent crystal, and the crystal has good stability in most organic solvents and water. Under the excitation of ult...
example 2
[0025] Using europium acetate, terbium acetate and 4,5-bis(6-carboxypyridin-3-yl)phthalic acid organic ligands, double rare earth organic framework materials were synthesized by solvothermal method, x=0.001, and the specific synthesis route is as follows :
[0026] Combine 0.00054mmol of europium acetate and 0.53946mmol of terbium acetate (molar ratio Eu 3+ : Tb 3+ =1:999) and 0.18mmol of 4,5-bis(6-carboxypyridin-3-yl)phthalic acid organic ligand dissolved in 15ml N,N-dimethylformamide, and another 32ml Ionized water, 20ml of ethanol and 1ml of acetic acid were added to it to prepare a mixed solution, and then put into a closed reactor, reacted at 140℃ for 12h at a constant temperature to obtain the double rare earth organic framework material Tb 0.999 Eu 0.001 L, the yield is 60%.
[0027] The obtained double rare earth organic framework material is colorless and transparent crystal, and the crystal has good stability in most organic solvents and water. Under the excitation of ul...
example 3
[0029] Using europium chloride, terbium chloride and 4,5-bis(5-carboxypyridin-2-yl)phthalic acid organic ligands, double rare earth organic framework materials were synthesized by solvothermal method, x=0.5, and its specific synthesis The route is as follows:
[0030] Combine 0.135mmol europium chloride and 0.135mmol terbium chloride (molar ratio Eu 3+ : Tb 3+ =1:1) and 0.09mmol of 4,5-bis(5-carboxypyridin-2-yl)phthalic acid organic ligand dissolved in 5ml N,N-dimethylformamide and 2.5ml N,N- In the mixed solution of dimethylacetamide, another 16ml of deionized water, 10ml of ethanol and 500μl of acetic acid were added to prepare a mixed solution, and then placed in a closed reactor, reacted at a constant temperature of 40℃ for 120h to obtain a double rare earth organic Frame material Tb 0.5 Eu 0.5 L, the yield is 65%.
[0031] The obtained double rare earth organic framework material is colorless and transparent crystal, and the crystal has good stability in most organic solvents...
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