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Method for preparing hypha/molybdenum sulfide adsorption-catalytic material by utilizing biological enrichment

A catalytic material and biological enrichment technology, applied in the field of adsorption-catalytic material preparation, to achieve the effect of prolonging the equilibrium time

Active Publication Date: 2020-08-25
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such "adsorbent-semiconductor composites contacted by Schottky junctions" for uranium-containing radioactive treatment have rarely been reported in the prior art

Method used

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  • Method for preparing hypha/molybdenum sulfide adsorption-catalytic material by utilizing biological enrichment
  • Method for preparing hypha/molybdenum sulfide adsorption-catalytic material by utilizing biological enrichment
  • Method for preparing hypha/molybdenum sulfide adsorption-catalytic material by utilizing biological enrichment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of method utilizing biological enrichment to prepare hyphae / molybdenum sulfide adsorption-catalytic material, comprises the following steps:

[0028] Step 1. Take 100g of glucose, 12.5g of yeast extract powder, 12.5g of peptone, and 5L of deionized water, mix them, and maintain them for 20 minutes under the conditions of a pressure of 103.4 kPa vapor pressure and a temperature of 120°C for sterilization, that is, the sterilized liquid culture medium;

[0029]Step 2: Add 120mL of liquid culture medium to the culture container, then add 0.1g of the fungal strain Xylocarpus, shake and cultivate at a temperature of 28°C and a speed of 180rpm. When the diameter of the fungal mycelium in the liquid culture medium grows to 1cm diameter, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution again after cultivating for one day, and continue to cultivate for 5 After the cult...

Embodiment 2

[0032] A kind of method utilizing biological enrichment to prepare hyphae / molybdenum sulfide adsorption-catalytic material, comprises the following steps:

[0033] Step 1. Take 100g of glucose, 12.5g of yeast extract powder, 12.5g of peptone, and 5L of deionized water, mix them, and maintain them for 20 minutes under the conditions of a pressure of 103.4 kPa vapor pressure and a temperature of 120°C for sterilization, that is, the sterilized liquid culture medium;

[0034] Step 2: Add 120mL of liquid culture medium to the culture container, then add 0.1g of the fungal strain Xylocarpus, shake and cultivate at a temperature of 28°C and a speed of 180rpm. When the diameter of the fungal mycelium in the liquid culture medium grows to 1cm diameter, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution again after cultivating for one day, and continue to cultivate for 5 After the cul...

Embodiment 3

[0037] A kind of method utilizing biological enrichment to prepare hyphae / molybdenum sulfide adsorption-catalytic material, comprises the following steps:

[0038] Step 1. Take 100g of glucose, 12.5g of yeast extract powder, 12.5g of peptone, and 5L of deionized water, mix them, and maintain them for 20 minutes under the conditions of a pressure of 103.4 kPa vapor pressure and a temperature of 120°C for sterilization, that is, the sterilized liquid culture medium;

[0039] Step 2: Add 120mL of liquid culture medium to the culture container, then add 0.1g of the fungal strain Xylocarpus, shake and cultivate at a temperature of 28°C and a speed of 180rpm. When the diameter of the fungal mycelium in the liquid culture medium grows to 1cm diameter, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution, add 10mL 50g / L ammonium molybdate solution and 10mL 50g / L thiourea solution again after cultivating for one day, and continue to cultivate for 5 After the cul...

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Abstract

The invention discloses a method for preparing a hypha / molybdenum sulfide adsorption-catalytic material by utilizing biological enrichment. The method comprises the following steps that: a fungus strain is inoculated into a liquid culture medium, an ammonium molybdate solution and a thiourea solution are added when the diameter of the mycelium pellets of fungus in the liquid culture medium is 1cm,culture reaction is carried out for one day, the ammonium molybdate solution and the thiourea solution are added again, continuous culturing is carried out, a solid is taken out after the culture isfinished, the solid is washed to be neutral, and freeze drying is carried out; and the solid is carbonized, so that the hypha / molybdenum sulfide adsorption-catalytic material can be obtained. According to the hypha / molybdenum sulfide adsorption-catalytic material prepared by the invention, MoS2 is in close contact with a carbon skeleton, TA in a solution can be effectively oxidized and decomposed,and a removal rate reaches 95.5%; most of U (VI) is reduced into U (IV) and is uniformly distributed on the surface layer of the material, which indicates that the U (VI) is influenced by adsorption-catalytic reaction at the same time.

Description

technical field [0001] The invention relates to the field of preparation of adsorption-catalysis materials, in particular to a method for preparing mycelium / molybdenum sulfide adsorption-catalysis materials by bio-enrichment. Background technique [0002] Nuclear tests, the use of nuclear weapons, high-level radioactive liquid waste produced by nuclear power plants, and nuclear accidents have all caused serious pollution to the environment, especially to water bodies. The radionuclide uranium can directly enter the water body or indirectly enter the water body in the form of uranium tailings, aerogel, dust, etc., and finally enter the human body through the food chain such as water and food, and pose a huge threat to human life and health. The existing technology mainly uses physical, chemical, and biological restoration methods to treat and repair radioactively polluted water bodies, but the general treatment methods have problems such as high cost, complicated process, lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J27/051C02F1/28C02F1/30B01J20/30
CPCB01J20/20B01J27/051C02F1/283C02F1/30C02F2101/006
Inventor 竹文坤段涛何嵘廉杰杨帆陈涛雷佳
Owner SOUTHWEAT UNIV OF SCI & TECH
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