| abstract |
The invention discloses a preparation method of a biocatalyst, which specifically includes the following steps: step 1, preparing a chitosan colloid solution; step 2, adding a gelatin copper complex dropwise to the chitosan colloid solution obtained in step 1, and keeping the temperature Stir for a period of time to obtain chitosan gelatin composite polymer copper complex, step 3, prepare a sodium hydroxide solution with a certain concentration; step 4, under the condition of 20 ℃ ~ 30 ℃, mix the chitosan gelatin obtained in step 2 The composite polymer copper complex is added to the sodium hydroxide solution obtained in step 3, and the chitosan-gelatin composite polymer copper complex is precipitated; in step 5, the chitosan-gelatin composite polymer copper complex obtained in step 4 is filtered , the filter cake is washed with water and dried to obtain a biocatalyst. The catalyst prepared by the invention has the characteristics of catalyzing the decomposition of hydrogen peroxide to produce strong oxidizing and high-activity particles, and can effectively catalyze and degrade organic pollutants in wastewater. |