Preparation method and application of UiO-66 defect-induced monatomic supported catalyst
A supported catalyst, uio-66 technology, applied in organic compound/hydride/coordination complex catalysts, preparation/separation of ammonia, chemical instruments and methods, etc. Stability and other issues, to achieve the effects of easy control of the reaction, simple preparation method, and high metal loading
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Embodiment 1
[0030] A UiO-66 defect site-induced single-atom ruthenium-loaded catalyst, its specific preparation method:
[0031] Dissolve zirconium chloride and terephthalic acid in N,N-dimethylformamide respectively, mix and ultrasonically treat for 30 minutes, transfer to a reaction kettle and put it in an oven, react at 120°C for 24 h, after cooling Centrifuge and wash several times with N,N-dimethylformamide, let stand overnight in methanol solution, filter, and vacuum dry at 80°C overnight to obtain defect-free UiO-66.
[0032] Disperse 0.50 g of UiO-66 and 51.85 mg of ruthenium chloride into 200 mL of distilled water, and disperse evenly by ultrasonication for 1 hour. Subsequently, under dark conditions, nitrogen gas was fed into the reactor at a rate of 40 mL / min, and the gas was continuously fed for about 30 min and then placed under a 500 W high-pressure mercury lamp with a wavelength of 365 nm and controlled by circulating water. The temperature of the reactor was maintained at...
Embodiment 2
[0034] A UiO-66 defect site-induced monatomic gold-loaded catalyst, its specific preparation method:
[0035] Dissolve zirconium chloride and terephthalic acid in N,N-dimethylformamide respectively, mix and ultrasonically treat for 30 minutes, transfer to a reaction kettle and put it in an oven, react at 120°C for 24 h, after cooling Centrifuge and wash several times with N,N-dimethylformamide, let stand overnight in methanol solution, filter, and vacuum dry at 80°C overnight to obtain defect-free UiO-66.
[0036] Disperse 0.50 g of the above-mentioned UiO-66 and 20.00 mg of chloroauric acid into 100 mL of distilled water, and disperse evenly by ultrasonication for 1 hour. Subsequently, under dark conditions, nitrogen gas was fed into the reactor at a rate of 40 mL / min, and the gas was continuously fed for about 30 min. The temperature of the reactor was maintained at 25 °C for 3 h. The obtained mixture was washed with dedistilled water and centrifuged three times. After the ...
Embodiment 3
[0038] A UiO-66 defect site-induced single-atom nickel-supported catalyst, its specific preparation method:
[0039] Dissolve zirconium chloride and terephthalic acid in N,N-dimethylformamide respectively, mix and ultrasonically treat for 30 minutes, transfer to a reaction kettle and put it in an oven, react at 120°C for 24 h, after cooling Centrifuge and wash several times with N,N-dimethylformamide, let stand overnight in methanol solution, filter, and vacuum dry at 80°C overnight to obtain defect-free UiO-66.
[0040] Disperse 1.00 g of the above-mentioned UiO-66 and 22.24 mg of nickel chloride into 100 mL of distilled water, and disperse evenly by ultrasonication for 1 hour. Subsequently, under dark conditions, argon gas was fed into the reactor at a rate of 40 mL / min, and the gas was continuously fed for about 30 min and then placed under a 400 W high-pressure mercury lamp with a wavelength of 300 nm to irradiate with an ultraviolet high-pressure mercury lamp. Under irra...
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