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Zirconium-loaded activated carbon high-activity material as well as preparation method and application thereof

A technology of activated carbon and high activity, applied in chemical instruments and methods, other chemical processes, sustainable biological treatment, etc., can solve the problems of complex preparation process, unstable performance, and further improvement of removal performance, and achieve strong removal ability , Improve the effect of removal performance

Active Publication Date: 2020-11-06
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned literatures have some research on the use of transition metal-loaded activated carbon and its use in pollutant treatment. However, the preparation process of this type of loaded activated carbon is complicated and the performance is not stable. Certain defects, and its removal performance needs to be further improved

Method used

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  • Zirconium-loaded activated carbon high-activity material as well as preparation method and application thereof
  • Zirconium-loaded activated carbon high-activity material as well as preparation method and application thereof
  • Zirconium-loaded activated carbon high-activity material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of supported zirconium activated carbon, comprising the following steps:

[0020] (1) Activated carbon pretreatment: soak 20-80 mesh activated carbon in 0.5mol / L NaOH solution for 24 hours, filter and rinse with deionized water until neutral, and dry at 70°C; then use 1.0mol / L Soak in hydrochloric acid solution for 24 hours, filter and rinse with deionized water until neutral, and then dry at 70°C.

[0021] (2) Activated carbon loaded with zirconium: using the solution impregnation method, weigh 1 g of pretreated activated carbon and immerse it in solutions with a mass fraction of zirconium salt of 0% (unimpregnated), 3%, 5%, 7%, 9%, and 11%, respectively. , stirred at room temperature at 50 rpm for 9 hours, and then filtered the activated carbon and dried at 70°C to obtain zirconium-supported activated carbon.

[0022] (3) High temperature calcination: put the zirconium-supported activated carbon into the crucible, then use a muffle furnace for ca...

Embodiment 2

[0025] A preparation method of supported zirconium activated carbon, comprising the following steps:

[0026] (1) Activated carbon pretreatment: soak 20-80 mesh activated carbon in 0.5mol / L NaOH solution for 24 hours, filter and rinse with deionized water until neutral, and dry at 90°C; then use 1.0mol / L The hydrochloric acid solution was soaked for 24 hours, filtered and rinsed with deionized water until neutral, and then dried at 90°C.

[0027] (2) Activated carbon supported zirconium: using the solution impregnation method, weigh 1 g of pretreated activated carbon and immerse it in a solution with a mass fraction of 7% zirconium salt, stir at room temperature for 9 hours at a speed of 80 rpm, and then filter the activated carbon and heat it at 90 °C drying under conditions to obtain zirconium-supported activated carbon. .

[0028] (3) High-temperature calcination: The zirconium-supported activated carbon is put into a crucible, then calcined in a muffle furnace at 500° C....

Embodiment 3

[0031] A preparation method of supported zirconium activated carbon, comprising the following steps:

[0032] (1) Activated carbon pretreatment: soak 20-80 mesh activated carbon in 0.5mol / L NaOH solution for 24 hours, filter and rinse with deionized water until neutral, and dry at 80°C; then use 1.0mol / L The hydrochloric acid solution was soaked for 24 hours, filtered and rinsed with deionized water until neutral, and then dried at 80°C.

[0033] (2) Activated carbon supported zirconium: Using the solution impregnation method, 1 g of pretreated activated carbon was weighed and immersed in a solution with a mass fraction of 9% zirconium salt, stirred at room temperature for 7 hours at a speed of 80 rpm, and then the activated carbon was filtered and heated at 80 ° C. drying under conditions to obtain zirconium-supported activated carbon. .

[0034] (3) High-temperature calcination: The zirconium-supported activated carbon was put into a crucible, then calcined at 400° C. for ...

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Abstract

The invention discloses a preparation method and application of a zirconium-loaded activated carbon high-activity material. Activated carbon is selected as a carrier, a sodium hydroxide solution and ahydrochloric acid solution are sequentially adopted for pretreatment, more acid sites are provided for the activated carbon so as to activate the activated carbon, and the pore broadening effect is achieved, and then impregnating of the pretreated activated carbon in a zirconium salt solution is carried out by using a solution impregnation method, and loading of zirconium ions on the activated carbon is realized through adsorption and coordination effects. And finally, through a high-temperature calcination technology, zirconium ions are stably doped onto the activated carbon, so that the zirconium-loaded activated carbon material with high activity is obtained. The prepared zirconium-loaded activated carbon is good in stability and durability, the highest removal rate of atrazine in water can reach 95% or above, the rate is high, and the zirconium-loaded activated carbon can be used for actual production and application and has high applicability and generalization performance in therelated water treatment field.

Description

technical field [0001] The invention belongs to the technical fields of material technology and wastewater treatment, and in particular relates to a preparation method of a high active material loaded with zirconium activated carbon and a technology for removing atrazine. Background technique [0002] Atrazine is a triazine herbicide, which is widely used as a herbicide for corn, sugarcane, sorghum and other crops due to its convenient use, low cost and excellent effect. Its structure is stable, the degradation is difficult, the residence time in the environment is long, and it has a certain toxic effect on organisms, posing a potential threat to the ecological environment and human health. For the high residual amount, relative chemical stability and ecotoxicity of atrazine, it is the focus of many scholars to study how to remove atrazine in the environment and reduce its toxic effects on the environment and humans. [0003] At present, the removal technologies of atrazine...

Claims

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Application Information

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IPC IPC(8): C01B32/354B01J20/20B01J20/30B01J20/32C02F1/28C02F1/70C02F101/30
CPCC01B32/354B01J20/20B01J20/3078B01J20/3236C02F1/288C02F1/705C02F2101/306Y02W10/10
Inventor 何慧军刘勇攀程燕刘杰李宁杰肖河刘崇敏
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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