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Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof

A technology for modifying attapulgite and attapulgite, which is applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., and can solve the problems of increasing the production cost of household water purifiers, high cost of activated carbon, and large specific surface area and other problems, to achieve the effects of large-scale production and application, high reuse rate, and simple preparation process

Inactive Publication Date: 2020-01-10
邓晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention has large specific surface area, large adsorption capacity, high degree of treatment, stable effect, and no secondary pollution; however, in this technical solution, there are many types of activated carbon used, and various additives need to be added to complete the modification The modification of activated carbon, and the high cost of activated carbon, undoubtedly increased the production cost of the household water purifier industry

Method used

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  • Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof
  • Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof
  • Irradiation modified attapulgite/activated carbon composite carbon rod and preparation method thereof

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Embodiment 1

[0030] A preparation method for irradiation modified attapulgite composite carbon rod, comprising the following steps:

[0031] (1) Dissolve 20 g of attapulgite in 50 mL of deionized water, add 1 mol / L hydrochloric acid for acidification pretreatment, transfer to a 10 cm diameter petri dish, and dry at 60 °C for 10 h; After the sample is ground, it is placed on a high-energy electron beam irradiation conveyor belt for irradiation treatment. The energy of the high-energy electron beam irradiation is 10 MeV, and the irradiation dose is 30 KGy. After irradiation, the sample is ground to obtain irradiation-modified attapulgite;

[0032] (2) Control the mass ratio of radiation-modified attapulgite to activated carbon to be 10:3, add 50 mL of deionized water and mix evenly, then stir for 6 hours, add 2 g of acetic acid, and place it in a muffle furnace for calcination at 450 ° C. The calcination time is 40 min, that is, irradiation modified attapulgite / activated carbon composite mat...

Embodiment 2

[0035] A preparation method for irradiation modified attapulgite composite carbon rod, comprising the following steps:

[0036] (1) Dissolve 20 g of attapulgite in 50 mL of deionized water, add 1.5 mol / L hydrochloric acid for acidification pretreatment, transfer to a 10 cm diameter petri dish, and dry at 70 °C for 9 h; After the sample is ground, it is placed on a high-energy electron beam irradiation conveyor belt for irradiation treatment. The energy of the high-energy electron beam irradiation is 15 MeV, and the irradiation dose is 40 KGy. After irradiation, the sample is ground to obtain irradiation-modified attapulgite;

[0037] (2) Control the mass ratio of irradiated modified attapulgite to activated carbon to be 10:1, add 50 mL of deionized water to mix evenly, then stir for 6 hours, add 2 g of acetic acid, and place it in a muffle furnace for roasting at 400 °C. The roasting time is 50 min, the irradiation modified attapulgite / activated carbon composite material was o...

Embodiment 3

[0040] (1) Weigh 20 g of attapulgite and dissolve it in 50 mL of deionized water, add 2 mol / L hydrochloric acid for acidification pretreatment, transfer to a 10 cm diameter petri dish, and dry at 80 °C for 8 h; the dried sample After grinding, place it on a high-energy electron beam irradiation conveyor belt for irradiation treatment. The energy of high-energy electron beam irradiation is 20MeV, and the irradiation dose is 50KGy. After irradiation, the sample is ground to obtain irradiation-modified attapulgite;

[0041] (2) Control the mass ratio of radiation-modified attapulgite to activated carbon to be 10:2, add 50 mL of deionized water to mix evenly, then stir for 5 h, add 2 g of acetic acid, and place it in a muffle furnace for 30 min at 500 °C. , that is, irradiation modified attapulgite / activated carbon composite material;

[0042] (3) Mix the irradiated modified attapulgite / activated carbon composite material obtained in step (2) with the zinc oxide antibacterial agen...

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Abstract

The invention discloses a preparation method of an irradiation modified attapulgite / activated carbon composite carbon rod. The method includes the steps of: (1) dissolving attapulgite in water, conducting acidifying treatment, then performing drying and grinding, and carrying out irradiation modification treatment; (2) mixing the irradiation modified attapulgite with activated carbon, then performing dissolving in water, adding acetic acid, and performing roasting in a muffle furnace; and (3) putting the composite material obtained in step (2), a zinc oxide antibacterial agent, a binder and phosphate into a mixer to mix the substances uniformly, carrying out die-casting molding, performing high-temperature calcination, and conducting cooling to obtain the irradiation modified attapulgite composite carbon rod. According to the invention, acid treatment and irradiation treatment are carried out on attapulgite to greatly increase the pore channel structure, and then the treated attapulgite is compounded with activated carbon to prepare the composite carbon rod, which has the characteristics of efficient adsorption performance and low preparation cost.

Description

technical field [0001] The invention belongs to the technical field of activated carbon processing, and in particular relates to an irradiation-modified attapulgite / activated carbon composite carbon rod used for a water purification filter element and a preparation method thereof. Background technique [0002] With the acceleration of urbanization, the increase of urban population and the strengthening of environmental protection awareness, the discharge of urban industrial wastewater and domestic sewage is increasing, and the rate of urban sewage treatment is also increasing year by year. The treatment of sewage is inseparable from adsorbents. Activated carbon is a porous Adsorption materials, with rich pore structure, high specific surface area and strong adsorption capacity, are ideal environment-friendly adsorbents. Among them, activated carbon has developed pores, good adsorption performance, high strength, easy regeneration, It is economical and durable, and is widely ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/12C02F101/38
CPCB01J20/20C02F1/281C02F2101/12C02F2101/40
Inventor 邓晖张静
Owner 邓晖
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