Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, preparation and use method

一种磁性生物质炭、生物质炭的技术，应用在植物学设备和方法、用于生物控制的化学品、化学仪器和方法等方向，能够解决无法进行有效回收利用、无法进行长效杀菌、药剂残留等问题，达到良好杀菌效能、克服药剂残留、高效杀菌作用的效果

Active Publication Date: 2020-08-21
INST OF SOIL SCI CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the defects in the prior art that quaternary phosphonium salt water-soluble fungicides cannot be effectively recycled after being used in water bodies, resulting in a large amount of medicament residues and the inability to carry out long-term sterilization, the present invention provides a kind of fungicide with good bactericidal effect and long-term effect. Bactericidal, low-cost, recyclable organic-inorganic composite bactericidal material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, preparation and use method
  • A kind of magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, preparation and use method
  • A kind of magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment is the preparation process of magnetic biochar, including the following steps, first preparing magnetic biochar, specifically:

[0051] 1) Preparation of precursor biochar

[0052] First, refer to the method involved in the patent Chinese patent application number CN200920232191.9 to obtain corn stalk charcoal at 500°C, wash the corn stalks with tap water and deionized water in sequence, and then dry them in an electric blast drying oven at 80°C for 12 hours.

[0053] The dried corn stalks were transferred to the reactor of the straw charcoal plant, and the temperature was programmed to rise under low oxygen conditions, starting from 200°C, and each temperature node (300°C and 400°C) was kept for 1.5h until it reached 500°C. No more heat up. When no black smoke is discharged from the reaction furnace, the carbon making device can be closed, and after cooling to room temperature, the prepared biochar is ground and sieved.

[0054] 2) Preparation of magn...

Embodiment 2

[0060] This embodiment is the preparation process of magnetic biomass charcoal-quaternary phosphonium salt bactericidal material (mass ratio 1:1), the main steps are as follows:

[0061] 1) Take 1.0 g of the magnetic biochar prepared in Example 1, place it in a beaker containing 200 mL of deionized water, and add 1.0 g of tributyldodecylphosphine bromide at the same time, and stir the magnetic particles overnight at room temperature (12h);

[0062] 2) After the impregnation is sufficient, the temperature is raised to 65°C, and the hydrothermal reaction is carried out for 4 hours. After cooling to room temperature, the product was magnetically separated, washed several times until the pH of the sample washing solution was neutral, and placed in a vacuum drying oven (70°C, -0.06MPa) to finally obtain a magnetic biochar with a mass ratio of 1:1- Quaternary phosphonium salt bactericidal material.

[0063] Such as figure 2 , the resulting product has a saturation magnetization ...

Embodiment 3

[0065] Preparation of magnetic biochar-quaternary phosphonium salt bactericidal material (mass ratio 1:10)

[0066] Get 1.0g of the magnetic biochar prepared in Example 1, place it in a beaker containing 200mL of deionized water, and add 10.0g of tributyldodecylphosphine bromide simultaneously, and stir the magnetic particles overnight at room temperature (12h ), fully impregnated. The temperature was raised to 65°C, and the hydrothermal reaction was carried out for 4h. After cooling to room temperature, the product was magnetically separated, washed several times until the pH of the sample washing liquid was neutral, and placed in a vacuum drying oven (70°C, -0.06MPa), to finally obtain magnetic biochar with a mass ratio of 1:10- Quaternary phosphonium salt bactericidal material.

[0067] Such as figure 2 , the resulting product has a saturation magnetization of 53.29emu / g (curve 3) at room temperature; as image 3 , the XRD spectrogram presents corresponding magnetic ir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, a preparation method and a use method, and belongs to the field of water treatment bactericidal materials. The preparation steps of the present invention are as follows: 1) select corn stalk biomass charcoal as a precursor, and prepare magnetic biomass charcoal by coprecipitation method; 2) add the magnetic biomass charcoal to deionized water, then add quaternary phosphonium salt, and Stir with magnetic particles, heat up and heat up for hydrothermal reaction after fully impregnated, and cool to room temperature to obtain a sterilizing material. The heating temperature for raising the temperature is 60°C to 70°C. The invention can effectively realize resource utilization of biomass charcoal materials, realize long-term sterilization of quaternary phosphonium salt fungicides and magnetic recovery and regeneration of materials, reduce residues of fungicides, and lay a foundation for effective removal of microorganisms in wastewater.

Description

technical field [0001] The invention relates to a magnetic biomass charcoal-quaternary phosphonium salt bactericidal material, a preparation method and a use method, which belong to the technical field of water treatment and environmental protection, and are mainly used for sterilizing treatment of industrial circulating water, domestic sewage and oilfield reinjection water, etc. Background technique [0002] The speed of urbanization in my country is accelerating, the urban population base is increasing, the urban population is becoming more and more concentrated, and the scale effect is becoming more and more obvious. Correspondingly, domestic garbage, domestic sewage and industrial water generated by urban residents are increasing year by year, and a large amount of sewage is directly discharged without effective treatment, which will not only cause serious water environmental pollution, but also exacerbate the shortage of water resources in my country. [0003] Urban sew...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/20A01N25/08A01P1/00C02F1/50C02F1/28
CPCA01N57/20A01N25/08C02F1/50C02F1/288A01P1/00C02F1/448C02F1/283C02F2303/04C02F2103/023C02F2103/365Y02A40/22Y02P60/21A01N57/34A01N65/00
Inventor 王芳付玉豪生弘杰卞永荣蒋新
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com