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Cu0.2Ni0.8O/SBA-15, production method and method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading sulfonamide solution

A persulfate and solution technology, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of low degradation efficiency of sulfonamides, and achieve easy storage and transportation, high activity and Stable, wide range of effects

Inactive Publication Date: 2019-05-07
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a Cu 0.2 Ni 0.8 O / SBA-15, preparation method and method for degrading sulfonamide solution in conjunction with persulfate, to solve the problem of low degradation efficiency of sulfonamide substances in the prior art and the need for external energy

Method used

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  • Cu0.2Ni0.8O/SBA-15, production method and method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading sulfonamide solution
  • Cu0.2Ni0.8O/SBA-15, production method and method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading sulfonamide solution
  • Cu0.2Ni0.8O/SBA-15, production method and method for using Cu0.2Ni0.8O/SBA-15 in combination with persulfate for degrading sulfonamide solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The embodiment of the application provides a Cu 0.2 Ni 0.8 O / SBA-15 catalyst, the preparation method of the catalyst is:

[0064] S101: Ni(NO) with a mole fraction ratio of 1.1:1 3 ) 2 ·6H 2 O and Cu (NO 3 ) 2 ·3H 2 The O mixture is added to distilled water to dissolve ultrasonically, and then SBA-15 molecular sieve is added to it to dissolve ultrasonically to obtain a mixed solution;

[0065] S102: Stir the above-mentioned mixed liquid, and heat and evaporate until it becomes a paste;

[0066] S103: Dry the above paste at 80°C for 16 hours to obtain a molecular sieve mixture;

[0067] S104: calcining the above-mentioned molecular sieve mixture at a high temperature; the high-temperature calcination conditions are: the calcination temperature is 600°C, the heating rate is 2° / min, and the calcination time is 6 hours;

[0068] S105: Grind the calcined molecular sieve mixture to obtain Cu 0.2 Ni 0.8 O / SBA-15 catalyst.

[0069] The embodiment of the application also provides a Cu 0.2 ...

Embodiment 2

[0073] The embodiment of the application provides a Cu 0.2 Ni 0.8 O / SBA-15 catalyst, the preparation method of the catalyst is:

[0074] S201: The ratio of mole fraction is 1.2:1 Ni(NO 3 ) 2 ·6H 2 O and Cu (NO 3 ) 2 ·3H 2 The O mixture is added to distilled water to dissolve ultrasonically, and then SBA-15 molecular sieve is added to it to dissolve ultrasonically to obtain a mixed solution;

[0075] S202: Stir the above-mentioned mixed liquid, and heat and evaporate until it becomes a paste;

[0076] S203: Dry the above paste at 90°C for 14 hours to obtain a molecular sieve mixture;

[0077] S204: calcining the above-mentioned molecular sieve mixture at a high temperature; the high-temperature calcination conditions are: the calcination temperature is 500°C, the heating rate is 2° / min, and the calcination time is 8 hours;

[0078] S205: Grind the calcined molecular sieve mixture to obtain Cu 0.2 Ni 0.8 O / SBA-15 catalyst.

[0079] The embodiment of the application also provides a Cu 0.2 N...

Embodiment 3

[0083] The embodiment of the application provides a Cu 0.2 Ni 0.8 O / SBA-15 catalyst, the preparation method of the catalyst is:

[0084] S301: The ratio of mole fraction is 1.15:1 Ni(NO 3 ) 2 ·6H 2 O and Cu (NO 3 ) 2 ·3H 2 The O mixture is added to distilled water to dissolve ultrasonically, and then SBA-15 molecular sieve is added to it to dissolve ultrasonically to obtain a mixed solution;

[0085] S302: Stir the above-mentioned mixed liquid, and heat and evaporate until it becomes a paste;

[0086] S303: Dry the above paste at 85°C for 15 hours to obtain a molecular sieve mixture;

[0087] S304: calcining the above molecular sieve mixture at a high temperature; the high-temperature calcination conditions are: the calcination temperature is 510°C, the heating rate is 2° / min, and the calcination time is 7.5 hours;

[0088] S305: Grind the calcined molecular sieve mixture to obtain Cu 0.2 Ni 0.8 O / SBA-15 catalyst.

[0089] The embodiment of the application also provides a Cu 0.2 Ni 0.8 T...

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Abstract

The invention provides a production method of Cu0.2Ni0.8O / SBA-15 and a method for using Cu0.2Ni0.8O / SBA-15 in combination with persulfate for degrading a sulfonamide solution. In the method for usingthe Cu0.2Ni0.8O / SBA-15 in combination with the persulfate for degrading the sulfonamide solution, by using a Cu0.2Ni0.8O / SBA-15 catalyst in combination with the persulfate, the utilization rate of thecatalyst can be effectively improved, and the degradation efficiency is greatly improved. The Cu0.2Ni0.8O / SBA-15 catalyst has high activity and stability, can be suitable for a wide pH range, variouskinds of pollutant concentrations and various kinds of environmental sewage treatment, and can be repeatedly used for a certain number of times, so that a high degradation rate is maintained. The Cu0.2Ni0.8O / SBA-15 catalyst can also be used in combination with ultrasonic and electrochemical methods for degradation, the catalytic degradation efficiency is greatly improved, which shows more that the catalyst is wide in application range and high in degradation rate, compared with other catalysts, the catalyst can provide more use methods, and the use fields of the catalyst are greatly broadened.

Description

Technical field [0001] The present disclosure relates to the technical field of wastewater treatment, in particular to a Cu 0.2 Ni 0.8 O / SBA-15, preparation method and method for degrading sulfa solution in combination with persulfate. Background technique [0002] With the advancement of social science and technology, more and more attention has been paid to our living environment. Although the implementation of policies such as energy conservation, emission reduction and industrial structure adjustment has greatly improved our country’s environment, our country’s environmental quality is still It was seriously polluted. Sulfapyridine, sulfachloropyridazine and other sulfonamides are widely used in medicine and livestock breeding, and they are very stable in the environment and are not easily degraded naturally. At present, the treatment method of sulfonamides is mainly through the photodegradation method, that is, the use of UV / H 2 O 2 Catalyzes the production of free radicals...

Claims

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Application Information

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IPC IPC(8): B01J29/03C02F1/72C02F101/38
Inventor 何家洪李强腾柳梅黄俊豪廖文利姚昱岑
Owner CHONGQING UNIV OF ARTS & SCI
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