Nano material copolymerization mineral substance, plant extract insecticidal bactericide and preparation method thereof
A technology of plant extracts, insecticides and fungicides, applied in the field of pollution-free environmental protection physical biological pesticides, can solve the problems of short residual effect period, worsening resistance problems, easy decomposition of active ingredients, etc., and achieves less spraying times and no decrease in efficacy. , good adsorption effect
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Embodiment 1
[0090] Insecticides and fungicides of nano-materials copolymerized minerals and plant extracts, including rare earth and kaolin, titanium dioxide-copper oxide composite photocatalytic materials and plant extracts matrine and crotonine, the titanium dioxide-copper oxide composite photocatalytic material The rare earth and kaolin are jointly immobilized on the rare earth and kaolin together with plant extracts matrine and crotonine.
[0091] Example 1 The insecticide and fungicide of nanomaterial copolymerized minerals and plant extracts is obtained by the following method:
[0092] 1. Rare earth and kaolin pretreatment
[0093] Take 40 grams of rare earth with a fineness of 8000 mesh and mix with 10 grams of kaolin with a fineness of 8000 mesh, disperse in 1000 mL of deionized water, stir and mix well, and then add 20 grams of phosphoric acid. With the temperature of the water bath kept at 100°C, the mixture was fully stirred and reacted in the reactor for 2 hours. Then the m...
Embodiment 2
[0109] Insecticides and fungicides of nanomaterials copolymerized minerals and plant extracts, including attapulgite and rare earth, nano-titanium dioxide-nanometer zinc oxide composite photocatalytic materials and plant extracts osthole and pirodrine, the nano-titanium dioxide-nano The zinc oxide composite photocatalytic material and plant extracts osthole and pirodrine are immobilized on the attapulgite and rare earth together.
[0110] Example 2 The insecticide and fungicide of nanomaterial copolymerized minerals and plant extracts is obtained by the following method:
[0111] 1. Attapulgite and rare earth pretreatment
[0112]Mix 30 grams of attapulgite with a fineness of 8,000 mesh and 10 grams of rare earth with a fineness of 8,000 mesh, disperse in 1,000 mL of deionized water, stir and mix well, add 10 grams of concentrated sulfuric acid, and keep the temperature at 100°C, and the mixed solution is fully stirred and reacted in the reactor 2h. Then the material is filt...
Embodiment 3
[0127] Insecticides and fungicides of nano-materials copolymerized minerals and plant extracts, including diatomite, bentonite and rare earth, nano-titanium dioxide-nano-alumina composite photocatalytic materials and plant extracts toosendanin and neem bark extract, the nano The titanium dioxide-nanometer zinc oxide composite photocatalyst material and the plant extracts osthole and piridrine are jointly immobilized on the diatomite, bentonite and rare earth.
[0128] Example 3 The insecticide and fungicide of nanomaterials copolymerized minerals and plant extracts is obtained by the following method:
[0129] 1. Diatomite, bentonite and rare earth pretreatment
[0130] 32 grams of diatomite with a fineness of 8,000 mesh, 8 grams of rare earth with a fineness of 8,000 mesh, and 5 grams of bentonite with a fineness of 8,000 mesh, mixed and dispersed in 1,000 mL of deionized water, stirred evenly, added 12 grams of concentrated hydrochloric acid, and kept at 100 ° C. The mixtur...
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