Composite catalyst, method for degrading high-molecular organic compound through cooperation of composite catalyst and electron beam irradiation, and application of composite catalyst in sewage treatment

A composite catalyst, electron beam irradiation technology, applied in the direction of light water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of complex process, secondary pollution, high cost, achieve distribution Uniform, high load, low cost effect

Active Publication Date: 2021-08-10
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the existing defects such as difficult degradation, high cost, complicated process, and secondary pollution caused by the treatment process in the existing methods fo

Method used

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  • Composite catalyst, method for degrading high-molecular organic compound through cooperation of composite catalyst and electron beam irradiation, and application of composite catalyst in sewage treatment
  • Composite catalyst, method for degrading high-molecular organic compound through cooperation of composite catalyst and electron beam irradiation, and application of composite catalyst in sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1

[0075] (1) Measure 5ml of DMF solution in a hydrothermal reaction kettle, then add 0.4g of indium nitrate and 0.2g of terephthalic acid, react at 100°C for 24 hours, and then centrifuge and dry to obtain an indium sacrificial template;

[0076] (2) heat-treat the indium sacrificial template obtained in step (1) for 12 hours under vacuum conditions with a vacuum degree of 120 Pa and a temperature of 120°C; then transfer it to a muffle furnace, and raise the temperature to 500°C at a heating rate of 5°C / min And continue to calcine for 2h to get In with a hollow structure 2 o 3 nanotube;

[0077] (3) Take 100mg of In 2 o 3 , then add 10ml of deionized water and sonicate for 10min. After the sample is evenly dispersed, add 10mL of a total of 25mmol molar ratio of cobalt, copper, nickel and manganese chloride salt mixed solution of 1:1.5:0.7:0.3, stir for 1h and then add 100mL concentration 1mol / L reducing agent NaBH 4 ; Place the obtained material in a roasting furnace at 400...

Embodiment A2

[0080] (1) Measure 4.5ml of DMF solution in a hydrothermal reaction kettle, then add 0.35g of indium nitrate and 0.18g of terephthalic acid, react at 100°C for 22 hours, and then centrifuge and dry to obtain an indium sacrificial template;

[0081] (2) heat-treat the indium sacrificial template obtained in step (1) for 11 h under vacuum conditions with a vacuum degree of 130 Pa and a temperature of 110 °C; then transfer it to a muffle furnace, and raise the temperature to 480 ℃ and continue to calcine for 2.2h to obtain In with a hollow structure 2 o 3 nanotube;

[0082] (3) Take 100mg of In 2 o 3 , then add 10ml of deionized water and sonicate for 10min. After the sample is uniformly dispersed, add 10mL of a 1:0.5:2 molar ratio of cobalt, copper and nickel chloride salt mixed solution of 16mmol, stir for 0.8h and then add 40mL of concentration of 3mol / L reducing agent NaBH 4 ; Place the obtained material in a roasting furnace at 350° C. for 4.5 hours to activate it to o...

Embodiment A3

[0084] (1) Measure 5.5ml of DMF solution in a hydrothermal reaction kettle, then add 0.45g of indium nitrate and 0.22g of terephthalic acid, react at 100°C for 26 hours, and then centrifuge and dry to obtain an indium sacrificial template;

[0085] (2) heat-treat the indium sacrificial template obtained in step (1) for 14 hours under vacuum conditions with a vacuum degree of 115 Pa and a temperature of 130°C; then transfer it to a muffle furnace and raise the temperature to 190°C at a rate of 2°C / min , then the temperature was raised to 420°C at a rate of 6°C / min, and then to 500°C at a rate of 4°C / min and continued to be calcined for 2 hours to obtain In with a hollow structure 2 o 3 nanotube;

[0086] (3) Take 100mg of In 2 o 3 , then add 10ml of deionized water and sonicate for 10min. After the sample is evenly dispersed, add 10mL of a total of 20mmol of a mixed solution of cobalt, copper and manganese chloride salts with a molar ratio of 1:2:1. After stirring for 1.5h, ...

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Abstract

The invention relates to the field of sewage treatment, in particular to a composite catalyst, a preparation method of the composite catalyst, a method for degrading macromolecular organic compounds by using the composite catalyst and application of the method. The composite catalyst comprises a carrier and modified metal loaded on the carrier, wherein the modified metal comprises one or more of Ni, Co, Cu and Mn. The method comprises the following steps: in the presence of a composite catalyst, irradiating a macromolecular organic compound by using electron beams to degrade the macromolecular organic compound. The method has a very good degradation effect on high-concentration organic compounds and refractory and long-chain macromolecular organic matters, and is low in cost, rapid and efficient; and the method is especially suitable for sewage treatment and waste treatment.

Description

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Claims

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Application Information

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Owner XIAMEN UNIV
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