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A kind of preparation method of nickel oxide zinc oxide composite yttrium phosphate catalyst

A technology of composite yttrium phosphate and zinc oxide, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of high processing efficiency, large specific surface area, and good crystal structure

Active Publication Date: 2018-10-16
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing nickel oxide zinc oxide composite yttrium phosphate catalyst in order to overcome the deficiencies in the process of photocatalytic degradation of pollutants in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Using an electrolytic cell with graphite as the cathode, metal nickel sheet and zinc sheet as the double anode, and 0.1mol / L sodium carbonate as the electrolyte, the electrolyte in the electrolytic cell is stirred, and a current of 2A is respectively passed through for 20 minutes. Add 10 mL of yttrium nitrate solution with a concentration of 0.5 mol / L into the electrolytic cell, and then dropwise add 15 mL of a sodium phosphate solution with a concentration of 0.08 mol / L to the electrolytic cell. After the addition is completed, continue to stir and electrolyze for 4 hours, then precipitate, and separate the solid and liquid. Washing with deionized water for 5 times, drying at 105°C; calcining the dried product at 600°C for 8 hours to obtain a nickel oxide zinc oxide composite yttrium phosphate catalyst.

[0011] The prepared nickel oxide zinc oxide composite yttrium phosphate catalyst was used to treat acid scarlet wastewater: 0.2g of nickel oxide zinc oxide composite y...

Embodiment 2

[0013] Using an electrolytic cell with graphite as the cathode, metal nickel sheet and zinc sheet as the double anode, and 0.05mol / L sodium carbonate as the electrolyte, the electrolyte in the electrolytic cell is stirred, and a current of 1A is respectively passed through for 20 minutes. Add 5mL of yttrium nitrate solution with a concentration of 0.1mol / L into the electrolytic cell, and then add dropwise 10mL of a sodium phosphate solution with a concentration of 0.02mol / L. After the addition is completed, continue to stir and electrolyze for 2 hours, then precipitate, and separate the solid and liquid. Washing with deionized water three times, drying at 105°C; calcining the dried product at 400°C for 5 hours to obtain a nickel oxide zinc oxide composite yttrium phosphate catalyst.

[0014] The prepared nickel oxide zinc oxide composite yttrium phosphate catalyst was used to treat wastewater containing methylene blue: 0.2g of nickel oxide zinc oxide composite yttrium phosphate...

Embodiment 3

[0016] Using an electrolytic cell with graphite as the cathode, metal nickel sheet and zinc sheet as the double anode, and 0.08mol / L sodium carbonate as the electrolyte, the electrolyte in the electrolytic cell is stirred, and a current of 1A is respectively passed through for 20 minutes. Add 10 mL of yttrium nitrate solution with a concentration of 0.5 mol / L into the electrolytic cell, and then dropwise add 15 mL of a sodium phosphate solution with a concentration of 0.08 mol / L to the electrolytic cell. After the addition is completed, continue to stir and electrolyze for 4 hours, then precipitate, and separate the solid and liquid. Washing with deionized water for 5 times and drying at 105°C; calcining the dried product at 500°C for 8 hours to obtain a nickel oxide zinc oxide composite yttrium phosphate catalyst.

[0017] The prepared nickel oxide zinc oxide composite yttrium phosphate catalyst was used to treat the waste water containing Golden Orange II: 0.2g nickel oxide z...

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Abstract

The invention discloses a method for preparing a nickel oxide zinc oxide composite yttrium phosphate catalyst. The method comprises the following steps of in sequence: stirring 0.05-0.1mol / L sodium carbonate as electrolyte inside an electrolytic bath with graphite as the cathode and a metallic nickel piece and a zinc piece as double anodes, respectively introducing current of 1-2A, after 20 minutes, adding 5-10mL of a 0.1-0.5mol / L yttrium nitrate solution into the electrolytic bath, further dropping 10-15mL of a 0.02-0.08mol / L sodium phosphate solution, after dropping, continuously stirring and electrolyzing for 2-4 hours, precipitating, performing solid-liquid separation, washing the solid for 3-5 times by using deionized water, and drying at 105 DEG C; and calcining the dried product for 5-8 hours at 400-600 DEG C, thereby obtaining the nickel oxide zinc oxide composite yttrium phosphate catalyst. The catalyst prepared by using the method is of a relatively good crystal structure, has a relatively large specific surface area, is stable and is high in photo-degradation treatment efficiency.

Description

technical field [0001] The invention relates to the field of new materials for environmental pollution control, in particular to a preparation method of a nickel oxide zinc oxide composite yttrium phosphate catalyst. Background technique [0002] With the development of science and technology, toxic organic pollutants from industrial and agricultural production seriously threaten the environment and human health. It is of great significance to seek a new and efficient environmental governance technology. Photocatalytic technology has become an emerging environmental treatment technology with important application prospects due to its advantages of energy saving, high efficiency, complete pollutant degradation, and no secondary pollution. In recent years, the development of new and efficient visible light photocatalysts has become an important research content in photocatalytic technology. Among them, photocatalytic materials with surface plasmon resonance effect, because of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/185
CPCB01J27/1853
Inventor 赵文昌徐广永
Owner CHANGZHOU UNIV