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Fe-Ni-Co composite Fenton-like catalyst and preparation method thereof

A fe-ni-co, composite technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of poor activity and long time consumption, and achieve rich adsorption capacity and process Simple, non-polluting process

Pending Publication Date: 2020-05-15
清创人和生态工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the preparation process of the current catalyst is poor in stability, the preparation process is complicated and time-consuming and the activity is not good, the present invention provides a Fe-Ni-Co composite Fenton-like catalyst and its preparation method

Method used

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  • Fe-Ni-Co composite Fenton-like catalyst and preparation method thereof
  • Fe-Ni-Co composite Fenton-like catalyst and preparation method thereof
  • Fe-Ni-Co composite Fenton-like catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Pretreatment: Wash the activated carbon once with deionized water, transfer it to a high-temperature reactor and react at a high temperature of 100°C for 6 hours; after the reaction, wash it repeatedly with deionized water until it is neutral, and dry it at 50°C for 8 hours to complete the pretreatment of the carbon-based carrier. deal with.

[0052] Dissolve 4.04g of ferric nitrate, 1.16g of terephthalic acid in 50mL of DMF solution, add terephthalic acid and benzimidazole and stir to dissolve in DMF solution, stir well, add pretreated activated carbon and stir for 1-4h . Transfer to a high-temperature reactor, perform high-temperature hydrothermal reaction at 100-180°C for 9-20 hours, filter out the material after synthesis, pour off the supernatant of the reactor, and dry in an oven at 60-90°C for 4-8 hours.

[0053] Heating to 200-500°C in an air atmosphere at a heating rate of 10°C / min for calcination in a muffle furnace for 1-3h, then cooling to room temperature;...

Embodiment 2

[0055] Pretreatment: Wash the coconut shell activated carbon with deionized water once, transfer it to a high-temperature reactor and react at a high temperature of 150°C for 2 hours; after the reaction, wash it repeatedly with deionized water until it is neutral, and dry it at 80°C for 5 hours to complete the carbon-based carrier preprocessing.

[0056] Dissolve 2.828g of iron nitrate, 0.872g of nickel nitrate (Fe:Ni=7:3), 1.16g of terephthalic acid in 50mL of DMF, add terephthalic acid and benzimidazole and stir to dissolve in the DMF solution, stir After uniformity, add pretreated coconut shell activated carbon and stir for 1 hour. Transfer to a high-temperature reactor, and perform a high-temperature hydrothermal reaction at 100°C for 20 hours. After the synthesis, the material was filtered out, and the supernatant of the reactor was poured out, and dried in an oven at 60°C for 8 hours.

[0057] Heating to 200°C in an air atmosphere at a heating rate of 10°C / min and calci...

Embodiment 3

[0059] Pretreatment: Wash the carbon felt once with deionized water, transfer it to a high-temperature reactor and react at a high temperature of 120°C for 3 hours; after the reaction, wash it repeatedly with deionized water until it is neutral, and dry it at 60°C for 7 hours to complete the carbon-based carrier. preprocessing.

[0060] Dissolve 2.424g iron nitrate, 1.163g nickel nitrate (Fe: Ni=6; 4), 1.16g terephthalic acid in 50mL of DMF, add terephthalic acid and benzimidazole and stir to dissolve in the DMF solution, stir After uniformity, add the pretreated carbon felt and stir for 1-4 hours. Transfer to a high-temperature reactor, and conduct a high-temperature hydrothermal reaction at 110°C for 18 hours. After the synthesis, the material was filtered out, and the supernatant of the reactor was poured out, and dried in an oven at 65°C for 7 hours.

[0061] Heated to 220°C in an air atmosphere at a heating rate of 10°C / min and calcined in a muffle furnace for 2 hours, t...

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Abstract

The invention belongs to the field of sewage treatment technologies and environment-friendly functional materials, and particularly relates to a Fe-Ni-Co composite Fenton-like catalyst and a preparation method thereof. A carbon-based material is used as a carrier, Fe, Ni, Co and other elements are loaded on the carbon-based carrier, and the prepared material is applied to a wastewater treatment system. When the concentration of a metal mixture is 0.01 M, the hydrothermal synthesis temperature is 160 DEG C and the high-temperature calcination temperature is 600 DEG C, the prepared Fenton-like catalyst has the best performance in the wastewater treatment process, the COD removal rate can reach 40%, and the Fenton-like catalyst has good stability.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment technology and environmental protection functional materials, and in particular relates to a Fe-Ni-Co composite Fenton-like catalyst and a preparation method thereof. Background technique [0002] The rapid development of my country's industry has also brought about many environmental problems, and the treatment of industrial wastewater is one of the most important ones. Wastewater contains many refractory substances, most of which are persistent and refractory, and often seriously threaten human life and health through accumulation and enrichment. Therefore, it is imminent to develop low-cost, efficient and harmless technologies and methods for removing such pollutants. [0003] As an advanced oxidation technology, Fenton-like catalytic oxidation technology is widely used in a wide range of wastewater, the catalyst can be recycled, it can adapt to a wide range of pH, the output of iron ...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/755B01J37/08B01J37/10C02F1/72
CPCB01J37/086B01J37/10B01J37/084B01J23/745B01J23/755C02F1/722C02F1/725C02F2305/026C02F2209/08
Inventor 原沁波刘世斌王玉雪张红燕
Owner 清创人和生态工程技术有限公司
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