Silver-amino tetrazole metal organic framework and preparation method and application of silver-amino tetrazole metal organic framework
A metal-organic framework and aminotetrazole technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, light water/sewage treatment, etc., to achieve good catalytic effect, simple preparation method, and stable process Effect
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Embodiment 1
[0060] A, material preparation
[0061] Take by weighing 0.25mmol of silver nitrate in a reaction flask, add 4ml of water, stir on a magnetic stirrer with a rotating speed of 400rpm for 15 minutes to obtain a metal silver salt solution, then dropwise add 19.5mmol of ethylenediamine, continue stirring for 30min to Mix evenly to obtain a reaction solution 1;
[0062] Weigh 0.5 mmol of 5-aminotetrazole in a reaction flask, add 5 ml of methanol, stir evenly to obtain a reaction solution II;
[0063] Mix 2ml of water and 2ml of methanol evenly to obtain a buffer solution;
[0064] B, Diffusion method to prepare the target product
[0065] Slowly put the reaction solution 1 obtained in step A into the bottom layer of the glass tube, then slowly place the buffer solution obtained in step A on the reaction solution 1, then slowly place the reaction solution 2 obtained in step A on the buffer solution, and then seal The glass tube is used to keep the reaction liquid system at a pH v...
Embodiment 2
[0068] A, material preparation
[0069] Weigh 0.3 mmol of silver perchlorate in a reaction flask, add 5 ml of water, stir on a magnetic stirrer at a speed of 400 rpm for 30 min to obtain a metal silver salt solution, then add 30 mmol of ethylenediamine dropwise, and continue stirring for 1 h to Mix evenly to obtain a reaction solution 1;
[0070] Weigh 0.5mmol of 5-aminotetrazole in a reaction flask, add 5ml of ethanol, and stir evenly to obtain a reaction solution II;
[0071] Mix 2ml of water and 2ml of ethanol evenly to obtain a buffer solution;
[0072] B, Diffusion method to prepare the target product
[0073] Slowly put the reaction solution 1 obtained in step A into the bottom layer of the glass tube, then slowly place the buffer solution obtained in step A on the reaction solution 1, then slowly place the reaction solution 2 obtained in step A on the buffer solution, and then seal The glass tube is used to keep the reaction liquid system at a pH value of 11, and to ...
Embodiment 3
[0076] Photodegradable organic dye rhodamine 6G (molecular formula: C 28 h 31 N 2 o 3 Cl):
[0077] Prepare an aqueous solution of a certain amount of organic dye rhodamine 6G (1×10-5 mol / L). The silver-aminotetrazole metal organic framework material prepared in Example 1 was ground and pulverized, and 5 mg of the material was added into 10 mL of an organic dye aqueous solution, and then subjected to ultrasonication for 5 minutes, and stirred at a constant speed overnight in a dark environment (to establish organic dye and Adsorption equilibrium on the catalyst surface). The above solution was irradiated using a 300W high-pressure mercury lamp ultraviolet light source. During the irradiation period, a series of fixed amounts of the suspension were collected after being filtered through a membrane filter (pore size 0.022 mm), and the filtrate was analyzed by a UV-visible spectrophotometer to identify the real-time concentration. The concentration of the organic dye is mea...
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