ZnFe2O4/TiO2 fruit and vegetable pesticide residue remover and preparation method thereof

A znfe2o4, scavenger technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of exceeding the self-purification capacity of water bodies, secondary pollution, pesticide entry, etc. problems, to achieve the effect of safe and environmentally friendly preparation process, safe production process and low production cost

Inactive Publication Date: 2018-06-15
郝峻一 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Methods such as ozone and ultrasonic waves have a better effect on removing pesticide residues, but at the same time cause secondary pollution, and the cost is high, which is unaffordable for ordinary families
Moreover, the above method only reduces the pesticide residues at the entrance of the fruit, but at the same time makes a large amount of pesticides enter the domestic sewage, exceeding the self-purification capacity of the water body and becoming the source of water pollution.

Method used

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  • ZnFe2O4/TiO2 fruit and vegetable pesticide residue remover and preparation method thereof
  • ZnFe2O4/TiO2 fruit and vegetable pesticide residue remover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Using corn stalks as a biological template, dry the corn stalks in an oven at 90 degrees Celsius for 10 hours; impregnate 10-20 parts of tetrabutyl titanate and 30-40 parts of absolute ethanol with 45-55 parts of corn stalks for two time, 24 hours each time; dry the impregnated corn stalks in an oven at 90 degrees Celsius for 10 hours, and roast the dried corn stalks in a roaster at 400-450 degrees Celsius for 10 hours to obtain the graded corn stalks as biological templates. Porous TiO2. Fully mix 50 parts of hierarchical porous TiO2 prepared with corn stalks as a biological template, 3 parts of Zn(NO3)2, 6 parts of FeCl2 and 41 parts of water, and make the mixing system uniform and stable under the action of ultrasound, using a stainless steel reactor as the reaction device , using a constant temperature oven as a heat source, put the stainless steel reaction kettle with reactants in a constant temperature oven, adjust the temperature of the constant temperature oven ...

Embodiment 2

[0029] Using corn stalks as a biological template, dry the corn stalks in an oven at 90 degrees Celsius for 10 hours; impregnate 20-40 parts of tetrabutyl titanate and 20-30 parts of absolute ethanol with 40-50 parts of corn stalks for two time, 24 hours each time; dry the impregnated corn stalks in an oven at 90 degrees Celsius for 10 hours, and roast the dried corn stalks in a roaster at 400-450 degrees Celsius for 10 hours to obtain the graded corn stalks as biological templates. Porous TiO2. Fully mix 50 parts of hierarchical porous TiO2 prepared with corn stalks as a biological template, 5 parts of Zn(NO3)2, 10 parts of FeCl2 and 35 parts of water, and make the mixing system uniform and stable under the action of ultrasound, using a stainless steel reactor as a reaction device , using a constant temperature oven as a heat source, put the stainless steel reaction kettle with reactants in a constant temperature oven, adjust the temperature of the constant temperature oven a...

Embodiment 3

[0032] Using sorghum straw as a biological template, dry the sorghum straw in an oven at 90 degrees Celsius for 10 hours; impregnate 10-20 parts of tetrabutyl titanate and 30-40 parts of absolute ethanol with 45-55 parts of sorghum straw for two time, 24 hours each time; dry the impregnated corn stalks in an oven at 90 degrees Celsius for 10 hours, and roast the dried corn stalks in a roasting furnace at 400-450 degrees Celsius for 10 hours to obtain the classification of sorghum stalks as biological templates Porous TiO2. Fully mix 50 parts of hierarchical porous TiO2 prepared with sorghum stalks as a biological template, 3 parts of Zn(NO3)2, 6 parts of FeCl2 and 41 parts of water, and make the mixing system uniform and stable under the action of ultrasound, using a stainless steel reactor as a reaction device , using a constant temperature oven as a heat source, put the stainless steel reaction kettle with reactants in a constant temperature oven, adjust the temperature of the...

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Abstract

A preparation method of ZnFe2O4 / TiO2 fruit and vegetable pesticide residue remover comprises the three steps of drying, impregnation and synthesis. The preparation method of the ZnFe2O4 / TiO2 fruit andvegetable pesticide residue remover has the advantages of novelty, high visible photocatalysis efficiency, low production cost, and safety and environmental protection in the production process, andthe remover has a high environmental protection property.

Description

technical field [0001] The invention relates to the technical field of removing pesticide residues in fruits and vegetables, in particular to a ZnFe 2 o 4 / TiO 2 Fruit and vegetable pesticide residue remover and preparation method thereof. Background technique [0002] After the application of pesticides in agricultural production, some pesticides remain directly or indirectly in grains, vegetables, fruits, etc., and pesticides enter grains, vegetables, fruits, fish, shrimp, meat, eggs, and milk, causing food pollution and endangering human health. Pesticide residues are very harmful to humans and organisms. They are likely to cause obesity, carcinogenesis, endocrine interference, human digestive disorders, immune system and hematopoietic system, and fetal visceral hypoplasia or deformity. Pesticide residues in fruits and vegetables have become the main cause of human health. killer. [0003] In my country, the rate of pesticide residues in fruits and vegetables exceedin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80C02F1/30A23L5/20
CPCA23L5/276A23V2002/00B01J23/002B01J23/80B01J35/004B01J2523/00C02F1/30C02F2305/10A23V2250/1642A23V2250/1592A23V2250/1634B01J2523/27B01J2523/47B01J2523/842
Inventor 郝峻一冯威李金华
Owner 郝峻一
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