Phenylboronic acid functionalized Ti3C2Tx magnetic composite material as well as preparation method and application thereof
A magnetic composite material, ti3c2tx-nh2 technology, applied in chemical instruments and methods, separation methods, alkali metal compounds, etc., can solve the sensitivity and selectivity interference of analytical methods, large interference of endogenous compounds, and low abundance of catecholamines and other problems, to achieve the effect of easy surface functionalization, promotion of hydrophobicity and π-π interaction, and simple synthesis method
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Embodiment 1
[0042] Embodiment 1, phenylboronic acid functionalized Ti 3 C 2 T x Preparation of magnetic composites
[0043] A kind of phenylboronic acid functionalized Ti 3 C 2 T x The preparation method of magnetic composite material comprises the following steps:
[0044] (1) Ti 3 C 2 T x -NH 2 Synthesis
[0045] 0.5g Ti 3 C 2 T x Added to a mixture of 80mL ethanol, 5mL water and 7.5mL ammonia water, stirred at room temperature for 24h; then added 2.0mL 3-aminopropyl-3-ethoxysilane (APTES), continued to stir for 24h, centrifuged to collect the product Ti 3 C 2 T x -NH 2 , dried in vacuum at 50°C for 12 hours, and set aside;
[0046] (2) Hyperbranched Ti 3 C 2 T x -CTFs-NH 2 Synthesis
[0047] Take 0.5g Ti 3 C 2 T x -NH 2 , add 50mL THF (tetrahydrofuran) and 1.0g cyanuric chloride, then dropwise add 25mL melamine solution (0.05g / mL), under the condition of nitrogen protection, place it at 0°C for 12h; after the reaction, filter and collect the product Hyperbran...
Embodiment 2
[0056] Embodiment 2, phenylboronic acid functionalized Ti 3 C 2 T x Preparation of magnetic composites
[0057] A kind of phenylboronic acid functionalized Ti 3 C 2 T x The preparation method of magnetic composite material comprises the following steps:
[0058] (1) Add 0.5g Ti 3 C 2 T x Added to a mixture of 75mL ethanol, 4.5mL water and 7mL ammonia water, stirred at room temperature for 22h; then added 1.8mL 3-aminopropyl-3-ethoxysilane (APTES), continued to stir for 22h, centrifuged to collect the product Ti 3 C 2 T x -NH 2 , dried in vacuum at 45°C for 12 hours, and set aside;
[0059] (2) Hyperbranched Ti 3 C 2 T x -CTFs-NH 2 Synthesis
[0060] Take 0.4g Ti 3 C 2 T x -NH 2 , add 45mL THF (tetrahydrofuran) and 0.8g cyanuric chloride, then dropwise add 22mL melamine solution (0.045g / mL), under the condition of nitrogen protection, put it at 0°C for 10h; after the reaction, filter and collect the product Hyperbranched Ti 3 C 2 T x -CTFs-NH 2 , washe...
Embodiment 3
[0065] Embodiment 3, phenylboronic acid functionalized Ti 3 C 2 T x Preparation of magnetic composites
[0066] A kind of phenylboronic acid functionalized Ti 3 C 2 T x The preparation method of magnetic composite material comprises the following steps:
[0067] (1) Add 0.5g Ti 3 C 2 T x Added to a mixture of 85mL ethanol, 5.5mL water and 8mL ammonia water, stirred at room temperature for 23h; then added 2.2mL 3-aminopropyl-3-ethoxysilane (APTES), continued to stir for 23h, centrifuged to collect the product Ti 3 C 2 T x -NH 2 , dried in vacuum at 55°C for 12 hours, and set aside;
[0068] (2) Hyperbranched Ti 3 C 2 T x -CTFs-NH 2 Synthesis
[0069] Take 0.6g Ti 3 C 2 Tx -NH 2 , add 55mL THF (tetrahydrofuran) and 1.2g cyanuric chloride, then dropwise add 27mL melamine solution (0.055g / mL), under the condition of nitrogen protection, put it at 0°C for 11h; after the reaction, filter and collect the product Hyperbranched Ti 3 C 2 T x -CTFs-NH 2 , washed ...
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