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- W2987445350 abstract "The present paper reported fluorescent detection of 2,4,6-trinitrophenol (PA) by controlling energy transfer finely between rare earth ions. Eu(III) and Tb(III) ions with different weight ratios were reacted with 1,3,5-benzenetricarboxylic acid to construct a MOF matrix. Corresponding MOF samples were characterized in detail with SEM, XRD, N2 adsorption and desorption to confirm their structure. Their photophysical performance was discussed in detail as well. It was found that these MOF samples showed weak Tb(III) green emission and strong Eu(III) red emission in the absence of PA, since the triplet state (T1) of 1,3,5-benzenetricarboxylic acid excited Eu(III) effectively compared to Tb(III). Given PA, T1 of 1,3,5-benzenetricarboxylic acid was increased to match Tb(III) energy level. Strong Tb(III) green emission and weak Eu(III) red emission were observed, showing ratiometric fluorescent sensing towards PA. Sensitivity and limit of detection were obtained as 4.34 and 0.28 μM, respectively. Unique selectivity and linear response towards PA were observed. The practical sensing performance was confirmed as well." @default.
- W2987445350 created "2019-11-22" @default.
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- W2987445350 date "2020-02-01" @default.
- W2987445350 modified "2023-09-30" @default.
- W2987445350 title "Optical determination of nitro phenol via ratiometric emission from Tb:Eu-MOFs: Chemical synthesis and spectral response" @default.
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- W2987445350 doi "https://doi.org/10.1016/j.jphotochem.2019.112194" @default.
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