A kind of chiral metal-organic nanocrystal sensor and its preparation method and application
A metal-organic and nanocrystalline technology, which is applied in instruments, scientific instruments, and material analysis through electromagnetic means, can solve the problems of long analysis time, high instrument cost, difficulty in in-situ and online detection, etc., and achieve simple detection operation , The preparation method is simple and easy to operate
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Embodiment 1
[0029] 0.2mmol of Ce(NO 3 ) 3 ·6H 2 O dissolved in 4 mL of water; 0.3 mmol of D-(+)-camphoric acid H 2 Cam and 0.2 mmol of terephthalic acid H 2 Bdc was dissolved in 3 mL of DMF; the two solutions were blended at room temperature to obtain a clear mixed solution; 0.2 mL of 10% NaOH ethanol solution was added dropwise in 10 s and shaken and blended to obtain a chiral metal-organic complex After washing it, the obtained solid powder was dried overnight at 105-110° C. to obtain chiral metal-organic nanocrystals with a yield of 60%;
Embodiment 2
[0031] 0.2mmol of Ce(NO 3 ) 3 ·6H 2 O dissolved in 4 mL of water; 0.4 mmol of D-(+)-camphoric acid H 2 Cam and 0.3 mmol of terephthalic acid H 2 Bdc was dissolved in 5 mL of DMF; the two solutions were blended at room temperature to obtain a clear mixed solution; 0.5 mL of 10% NaOH ethanol solution was added dropwise in 30 s and shaken and blended to obtain a chiral metal-organic complex After washing it, the obtained solid powder was dried overnight at 105-110° C. to obtain chiral metal-organic nanocrystals with a yield of 65%;
Embodiment 3
[0033] 0.2mmol of Ce(NO 3 ) 3 ·6H 2 O dissolved in 4 mL of water; 0.35 mmol of D-(+)-camphoric acid H 2 Cam and 0.25 mmol of terephthalic acid H 2Bdc was dissolved in 4 mL of DMF; the two solutions were blended at room temperature to obtain a clear mixed solution; 0.35 mL of NaOH ethanol solution with a mass fraction of 10% was added dropwise in 20 s and shaken and blended to obtain a chiral metal-organic complex After washing, the obtained solid powder was dried overnight at 105-110° C. to obtain chiral metal-organic nanocrystals with a yield of 62%;
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