Cu/Cu2O/C composite material prepared from corncob loaded metal-organic framework and application of Cu/Cu2O/C composite material
A composite material and metal-loaded technology, which is applied in the preparation of organic compounds, metal/metal oxide/metal hydroxide catalysts, organic chemistry, etc., can solve the problems of excessive emission of ofloxacin
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Embodiment 1
[0031] Preparation of composite materials
[0032] Step 1, pretreatment of corncob.
[0033] At 80 °C, 1 g of corncob was put into 70 mL of acetic acid-sodium chlorite mixture for delignification. The acetic acid-sodium chlorite mixture contained 0.2 mL of acetic acid and 1.0 g of chlorite per 100 mL of aqueous solution. Sodium. After 3 hours, the resulting product was washed with deionized water to pH=7. Then 1 g of delignified corncob was added to 40 mL of NaBr-2,2,6,6-tetramethylpiperidine-1-oxyl radical mixture, NaBr-2,2,6,6-tetramethyl The piperidine-1-oxyl radical mixture contains 0.2 g NaBr and 0.02 g 2,2,6,6-tetramethylpiperidine-1-oxyl radical per 100 mL of aqueous solution. Then 1 mL of 1% (w / w) NaOCl solution was slowly dropped into the mixture with continuous stirring. The reaction was then kept at room temperature for 4 hours and then the pH was adjusted to neutral. Finally, collect all wet products and store at 4 °C.
[0034] Step 2, Preparation of corncob-su...
Embodiment 2
[0051] Preparation of composite materials
[0052] Step 1, pretreatment of corncob
[0053] At 90 °C, 1 g of corncob was put into 85 mL of acetic acid-sodium chlorite mixture for delignification. The acetic acid-sodium chlorite mixture contained 0.38 mL of acetic acid and 1.3 g of chlorite per 100 mL of aqueous solution. Sodium. After 3 hours, the resulting product was washed with deionized water to pH=7. Then 1 g of delignified corncob was added to 50 mL of NaBr-2,2,6,6-tetramethylpiperidine-1-oxyl radical mixture, NaBr-2,2,6,6-tetramethyl The piperidine-1-oxyl radical mixture contains 0.3 g NaBr and 0.04 g 2,2,6,6-tetramethylpiperidine-1-oxyl radical per 100 mL of aqueous solution. Then 3 mL of 1% (w / w) NaOCl solution was slowly dropped into the mixture with continuous stirring. The reaction was then kept at room temperature for 6 hours, after which the pH was adjusted to neutral. Finally, collect all wet products and store at 4 °C.
[0054] Step 2, Preparation of corn...
Embodiment 3
[0059] Preparation of composite materials
[0060] Step 1, pretreatment of corncob.
[0061] At 100 °C, 1 g of corncob was put into 100 mL of acetic acid-sodium chlorite mixture for delignification. The acetic acid-sodium chlorite mixture contained 0.5 mL of acetic acid and 1.5 g of chlorite per 100 mL of aqueous solution. Sodium. After 3 hours, the resulting product was washed with deionized water to pH=7. Then 1 g of delignified corncob was added to 60 mL of NaBr-2,2,6,6-tetramethylpiperidine-1-oxyl radical mixture, NaBr-2,2,6,6-tetramethyl The piperidine-1-oxyl radical mixture contains 0.5 g of NaBr and 0.05 g of 2,2,6,6-tetramethylpiperidine-1-oxyl radical per 100 mL of aqueous solution. Then 5 mL of 1% (w / w) NaOCl solution was slowly dropped into the mixture with continuous stirring. The reaction was then kept at room temperature for 8 hours and then the pH was adjusted to neutral. Finally, collect all wet products and store at 4 °C.
[0062] Step 2, Preparation of ...
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