Fig. 4 | Communications Chemistry

Fig. 4

From: Versatile bimetallic lanthanide metal-organic frameworks for tunable emission and efficient fluorescence sensing

Fig. 4

Anti-interference and reversibility of Eu0.47Tb0.53-CTP-COOH PVA film for the detection of Fe3+ ion. a Competition experiments of the Eu0.47Tb0.53-CTP-COOH PVA film for the detection of Fe3+ in the presence of other metal ions. b Competition experiments for the detection of Fe3+ in the presence of five, ten, or more interference metal ions. 1: Cu2+ + Al3+ + Co2+ + Ba2 + + Zn2+; 2: 1 + Fe3+; 3: K+ + Hg2+ + Pb2+ + Ca2+ + Ni2+; 4: 3 + Fe3+; 5: Li+ + Ag+ + Cd2+ + Mn2+ + Mg2+; 6: 5 + Fe3+; 7: Zn2+ + Na+ + Cr3+ + Fe2+ + Cu2+; 8: 7 + Fe3+; 9: Cu2+ + Fe2+ + Al3+ + Ni2+ + Ca2+ + Zn2+ + Pb2+ + Co2+ + Ba2+ + Ca2+; 10: 9 + Fe3+; 11: Li+ + Ag+ + Cd2+ + Mn2+ + Mg2+ + Zn2+ + Na+ + Cr3+ + Hg2+ + K+; 12: 11 + Fe3+; 13: all metal ions used except for Fe3+; 14: 13 + Fe3+. c Time-dependent emission intensity of Eu0.47Tb0.53-CTP-COOH PVA film incorporated with 1 × 10−4 M Fe3+ ion in aqueous solution. d Powder XRD patters of Eu0.47Tb0.53-CTP-COOH PVA film incorporated with Fe3+ ion and washed by deionized water

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