Abstract

Lanthanum nitrate and 1,4 benzenedicarboxylic acid were used to synthesize lanthanum metal organic framework (LaMOF) by conventional heating (reflux) method in dimethylformamide (DMF). The product lanthanum benzenedicarboxylic (LaBDC-MOF) structural morphology and optical properties were determined with SEM (scanning electron microscope), XRD (X-ray diffraction), TGA (thermogravimetric analysis), FTIR (Fourier-transform infrared) spectroscopy and photoluminescence spectroscopy. The characterization findings and results of LaBDC-MOF indicated that LaBDC-MOF was crystalline and significantly thermal stable. FTIR displayed that there was deprotonation in the carboxylic acidic COOH- . SEM images showed that LaBDC-MOF was composed of different sizes of rods and small needles that are polyhedral-like in shape. Luminescence properties suggested that LaBDC-MOF can be used as a fluorescent probe.

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