Bimetallic double-ligand-type photosensitive MOF material and preparation method and application thereof
A bimetallic and photosensitive technology, applied in the field of photocatalytic materials, can solve the problems of no photosensitive MOFs materials reported, and achieve good application value, simple preparation process, and cheap synthetic raw materials
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[0039] Another aspect of the embodiment of the present invention also provides the preparation method of the bimetallic double-ligand type photosensitive MOF material, which includes: sodium salt, L 1 Ligands and copper salts containing L 2 The solution of the ligand is fully mixed, and then cured at 110-130°C for 58-82 hours to obtain a blue-green block crystal, which is the bimetallic double-ligand photosensitive MOF material, wherein sodium salt, L 1 Ligands, copper salts and L 2 The molar ratio of the ligand is 1:1:5:7˜1:3:8:10.
[0040] Further, the sodium salt, L 1 Ligands, copper salts and L 2 The molar ratio of the ligand is (0.02~0.06):(0.03~0.07):(0.20~0.30):(0.25~0.35), specifically, the sodium salt, L 1 Ligands, copper salts and L 2 The amount of the substance of the ligand is 0.02-0.06 mmol, 0.03-0.07 mmol, 0.20-0.30 mmol, and 0.25-0.35 mmol, respectively.
[0041] Further, the copper salt includes copper perchlorate hydrate, preferably copper perchlorate he...
Embodiment 1
[0052] Example 1: Preparation of bimetallic double-ligand photosensitive MOF material
[0053] Na 10 [α-SiW 9 o 34 ]·18H 2 O (111.2mg, 0.04mmol), CuClO 4 ·6H 2 O (67.8mg, 0.25mmol) and L 1 (20.0mg, 0.05mmol) was added to a mixture of citric acid-sodium citrate buffer solution (3.0mL, pH=4.0), acetonitrile (3.0mL) and methanol (2.0mL), stirred at room temperature for 30min, and then the suspension The turbid liquid was added to a 25mL polytetrafluoroethylene reactor, solidified at 120°C for 72 hours, and finally cooled to room temperature to obtain blue-green block crystals, which were washed with acetonitrile for 3 times and dried at room temperature. The yield About 39%.
Embodiment 2
[0054] Example 2: Preparation of bimetallic double-ligand photosensitive MOF material
[0055] Na 10 [α-SiW 9 o 34 ]·18H 2 O (111.2mg, 0.04mmol), CuClO 4 ·6H 2 O (54.2mg, 0.20mmol) and L 1 (20.0mg, 0.05mmol) was added to a mixture of citric acid-sodium citrate buffer solution (3.5mL, pH=3.0), acetonitrile (2.5mL) and methanol (2.0mL), stirred at room temperature for 25min, and then the suspension The turbid liquid was added to a 25mL polytetrafluoroethylene reaction kettle, solidified at 115°C for 76h, and finally cooled to room temperature to obtain blue-green block crystals, which were washed with acetonitrile for 3 times and dried at room temperature. The yield About 41%.
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