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Preparation and application of powder catalytic material and graphite phase-containing carbon nitride composite nano catalytic material

A technology of powder catalytic materials and nano-catalytic materials, which is applied in the field of material chemistry and can solve problems such as difficult separation and low catalytic efficiency

Active Publication Date: 2018-03-20
CHANGCHUN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing photocatalysts have problems such

Method used

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  • Preparation and application of powder catalytic material and graphite phase-containing carbon nitride composite nano catalytic material
  • Preparation and application of powder catalytic material and graphite phase-containing carbon nitride composite nano catalytic material
  • Preparation and application of powder catalytic material and graphite phase-containing carbon nitride composite nano catalytic material

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Experimental program
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Effect test

Embodiment 1- Embodiment 4

[0068] Embodiment 1-embodiment 4 is FeCoGeMoO 8 Preparation method of powder catalytic material

Embodiment 1

[0070] A preparation method of a powder catalytic material, comprising a solid phase sintering method, the specific steps are:

[0071] (1) According to Fe 2 o 3 、Co 2 o 3 、GeO 2 and MoO 3 The molar ratio is 1:1:2:2, and the Fe with a purity of more than 99.99% is weighed respectively 2 o 3 、Co 2 o 3 、GeO 2 and MoO 3 , and mix evenly; then add it to a ball mill and grind to obtain a powder with a particle size of 1.3 μm-2.6 μm.

[0072] (2) Take the above powder and dry it at 170°C-230°C for 2.5h-3.5h, press it into tablets; put it into a high-temperature sintering furnace for sintering, the sintering process is: first raise the furnace temperature to 370°C-430°C , keep warm for 3h-5h, and then cool with the furnace to get the first sintered tablet.

[0073] (3) Take the first sintered tablet and pulverize it to obtain a powder with a particle size of 1.2 μm-2.2 μm, and then press it into a tablet; then put it into a high-temperature sintering furnace for sintering...

Embodiment 2

[0077] A method for preparing a powder catalytic material, comprising a laser cladding method, the specific steps are:

[0078] (a) taking Q235 steel as the matrix material; grinding the Q235 steel surface flat with a grinder and cleaning the matrix surface with acetone solution to remove oil stains, to obtain the treated Q235 steel matrix material;

[0079] (b) According to the molar ratio of Fe, Co, Ge and Mo being 1:1:1:1, respectively weigh Fe, Co, Ge and Mo powders, and then add them into a ball mill for mixing to obtain a mixed powder with a particle size of 50 μm;

[0080] (c) Mix the above mixed powder thoroughly with alcohol, and then coat it on the surface of the treated Q235 steel base material to form a 0.8mm thick preset layer;

[0081] (d) After the alcohol in the preset layer is evaporated to dryness at room temperature, the DL-HL-T5000B cross-flow CO 2 Laser cladding treatment is carried out in the laser, where the laser cladding treatment parameters are: lase...

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Abstract

The invention discloses a powder catalytic material. The powder catalytic material is composed of FeCoGeMoO8. Particle size of the powder catalytic material is 0.10mu m to 0.25mu m. The powder catalytic material can photocatalytically degrade organic pollutants rhodamine B, diclofenac and decabromodiphenyl ether in water. At the same time, the invention discloses a preparation method of the powdercatalytic material. The preparation method comprises a solid-phase sintering method, a laser cladding method and a sol-gel-low-temperature self-combustion method, and a combination method of a tape-casting method and a solid-phase reaction method. The invention also discloses a preparation method of a graphite phase-containing carbon nitride composite nano catalytic material; a g-C3N4/FeCoGeMoO8composite nano catalytic material is prepared, and can be used for photocatalytically removing the organic pollutants rhodamine B, diclofenac and decabromodiphenyl in the water.

Description

technical field [0001] The invention relates to the technical field of material chemistry, and more specifically relates to the preparation and application of a powder catalytic material and a composite nano-catalytic material containing graphite phase carbon nitride. Background technique [0002] The treatment of toxic and refractory organic pollutants in water has always been a difficult and hot topic in the field of water treatment. Among them, the persistence of endocrine disruptors in the environment has produced many harmful effects and effects on organisms, and the phenomenon of endocrine disruptor pollution has become a global environmental problem. [0003] Polybrominated diphenyl ether is an important brominated flame retardant, which is widely used in electronic appliances, furniture decoration, building materials, textile fibers and other fields due to its superior performance and low price. And because of its volatile, lipophilic, and refractory properties, PBD...

Claims

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Application Information

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IPC IPC(8): B01J23/887B01J27/24B01J37/08B01J37/03C02F1/30C23C24/10C01G51/00C02F101/34C02F101/36C02F101/38
CPCB01J23/8875B01J27/24B01J37/0009B01J37/036B01J37/08B01J37/088B01J2523/00C01G51/006C01P2004/04C02F1/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10C23C24/10B01J2523/42B01J2523/68B01J2523/842B01J2523/845
Inventor 栾景飞沈栎
Owner CHANGCHUN NORMAL UNIVERSITY
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