Preparation method of bulk phase loaded zero-valent iron biochar material

A technology of biochar and phase loading, which is applied in chemical instruments and methods, water/sludge/sewage treatment, adsorption water/sewage treatment, etc. It can solve the problems that the stability needs to be improved, and achieve improved reliability and durability, The effect of low cost and convenient operation

Active Publication Date: 2021-11-26
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biochar nano-zero-valent iron-nickel composite thus obtained is a surface-supported composite, and its stability needs to be improved.

Method used

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  • Preparation method of bulk phase loaded zero-valent iron biochar material
  • Preparation method of bulk phase loaded zero-valent iron biochar material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1

[0042] Planting ramie is 130 days in red soil, and 200 mg / L citric acid solution is sprayed once a week. After 130 days, cutting the narcles. Using deionized water was washed with a 0.01 M dilute hydrochloric acid for 1 hour, and the pulverized to 2 mm particles were dried at 70.0 ° C. In the tube muffle furnace, the pulverized particles were hotly solved for 90 minutes at 700 degrees Celsius, and the adamant phase load zero-price iron bio-carbon material was prepared.

[0043] XRD spectrum of zero price iron bio-carbon material figure 1 As shown, 44.8 °, 65.1 °, 82.2 ° are zoi iron diffraction peaks, and 43.1 °, 50.4 °, 73.9 ° are iron carbon compound CFE. 15.1 Diffraction peaks.

[0044] The TEM of the body-phase load zizi iron bio-carbon material reveals that the zero-valent iron particles are bored in the biological carbon phase.

[0045] The XPS of the body-phase load zizi iron bio-carbon material reveals that the zero-price iron content at the surface of...

Embodiment 2

[0047] Planted ramie for 150 days and 150 days after 150 days. Using deionized water was washed with a 0.01 M dilute hydrochloric acid for 1 hour, and the pulverized to 2 mm particles were dried at 70.0 ° C. In the tubular muffle furnace, the pulverized particles are hotly solved at 600 degrees Celsius, and the adamant phase load zero-price iron bio-carbon material is prepared.

[0048] The XRD and TEM Results of the body phase load zizi iron bio-carbon material were similar to those in Example 1.

[0049] Its XPS reveals that the zero price iron content at 40 nm depth and 80 nm depth is 1.38%, 8.98% and 18.32, respectively.

Embodiment 3

[0051]Planting ramie is 150 days in red soil, and a solution of 100 mg / L of citric acid is sprayed once a week. After 150 days, cutting the narcles. Using deionized water was washed with a 0.01 M dilute hydrochloric acid for 1 hour, and the pulverized to 2 mm particles were dried at 70.0 ° C. In the tubular mass furnace, the pulverized particles are hotly solved at 800 degrees Celsius, and the adamant phase load zero-price iron bio-carbon material is prepared.

[0052] The XRD and TEM Results of the body phase load zizi iron bio-carbon material were similar to those in Example 1.

[0053] Its XPS reveals that the zero price iron content at 40 nm depth and 80 nm depth is 1.43%, 9.06% and 18.44, respectively.

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Abstract

The invention discloses a preparation method of a bulk-phase loaded zero-valent iron biochar material. Suitable crop plants are planted in red soil, iron components in the red soil are absorbed by the crop plants, the crop plants are treated and then are subjected to anaerobic pyrolysis at a suitable temperature to obtain the bulk-phase loaded zero-valent iron biochar material, iron is stably embedded and loaded in biochar, and the material is more reliable and durable when used as a repair material.

Description

Technical field [0001] The present invention relates to a new type of environmentally friendly material, and more particularly to a body-phase load zero-valent iron bio-carbon material and a preparation method thereof. Background technique [0002] To date, environmental pollution, such as water pollution, soil pollution, etc. have received global concern. The researchers have found that zero-priced metals such as magnesium, copper, and iron have a huge advantage when removing the underground difficult degradation of organic pollutants. Compared with other zoom metal, the zero price is simple, the reaction is thorough and the secondary pollution does not cause the environment, but since it is cheap and easy, it has received extensive attention in engineering applications. [0003] Among them, nano-zero-price iron has a large specific surface effect and quantum effect, which has been widely used as an efficient repair material. [0004] However, nano-zero-valent iron is extremely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28
CPCB01J20/20C02F1/283B01J2220/4825
Inventor 王雷席北斗李翔檀文炳王金生李彤彤崔东宇闫政李一葳李艳平郭可昕
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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