MOF fluorescent probe for detecting aluminum ions and iron ions and preparation method thereof

• Main Authors: KWAK MINA, HU KANG, JING XUEQUAN, LI JIARONG, QIN HAONAN, YAO ZHANGWEI, ZHANG WENYI
• Format: Patent
• Language: Chinese; English
• Published: 11.04.2023
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASURING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; TESTING; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides an MOF fluorescent probe for detecting aluminum ions and iron ions and a preparation method thereof.The preparation method includes the steps that terbium salt and 5-aminoisophthalic acid are subjected to mixing, solid-liquid separation, washing and drying, and the MOF fluorescent probe is obtained; the mixing temperature is 120 to 180 DEG C; in the MOF fluorescent probe formed by the terbium salt and the 5-aminoisophthalic acid through coordination, the 5-aminoisophthalic acid is used as a sensitizer to provide energy for the terbium salt, so that a yellow-green fluorescent effect is generated; the existence of aluminum ions enables the MOF fluorescent probe to be decomposed, so that yellow-green fluorescence disappears, and the yellow-green fluorescence is replaced by blue fluorescence emitted by the ligand; the iron ions are subjected to lattice replacement while absorbing and competing the exciting light, so that yellow-green fluorescence is directly quenched, and the difference ide