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Preparation method and application of Z-type photocatalyst g-C3N4/RGO/ZnWO4

A photocatalyst, g-c3n4 technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of poor degradation effect and slow treatment rate of antibiotic wastewater, and achieve excellent photocatalysis performance, excellent photocatalytic activity, low energy effect

Pending Publication Date: 2022-01-21
卢俊彩
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing photocatalysts are not effective in degrading some pollutants, such as methylene blue and tetracycline hydrochloride, and the treatment rate of antibiotic wastewater is relatively slow.

Method used

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  • Preparation method and application of Z-type photocatalyst g-C3N4/RGO/ZnWO4
  • Preparation method and application of Z-type photocatalyst g-C3N4/RGO/ZnWO4
  • Preparation method and application of Z-type photocatalyst g-C3N4/RGO/ZnWO4

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Z type photocatalyst g-C 3 N 4 / RGO / ZnWO 4 , the synthesized component materials include reduced graphene oxide (RGO), graphitic carbon nitride (g-C 3 N 4 ), zinc tungstate.

[0029] The preparation process is as follows: use a JA2003 analytical balance to weigh 0.010g of RGO and pour it into a beaker filled with 20ml of deionized water, then use an SB-3200DT ultrasonic cleaning machine to ultrasonically treat it for 30min; then use a JA2003 analytical balance to weigh 0.156g of ZnWO 4 , and 50% molar ratio of g-C 3 N 4 Add it to the above beaker, then pour 40ml of deionized water into the beaker; then transfer the above mixed solution to the KH-100mL solvothermal synthesis reaction kettle, and react at 180°C for 12h. Place in an 800D desktop low-speed centrifuge, wash the precipitate in the mixed solution with absolute ethanol for 2-3 times; transfer the precipitate to a petri dish, and dry it in a 60°C electric constant temperature blast drying oven to obtain 50...

Embodiment 2

[0031] With 0.156g ZnWO 4 , press g-C 3 N 4 / ZnWO 4 75% g-C was prepared at a molar ratio of 75% 3 N 4 / RGO / ZnWO 4 Z type photocatalyst, operation steps are identical with embodiment one.

Embodiment 3

[0033] With 0.156g ZnWO 4 , press g-C 3 N 4 / ZnWO 4Prepare 100% g-C at a molar ratio of 100% 3 N 4 / RGO / ZnWO 4 Z type photocatalyst, operation steps are identical with embodiment one.

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Abstract

The invention discloses a preparation method and application of a Z-type photocatalyst g-C3N4 / RGO / ZnWO4, and relates to the technical field of photocatalysts. According to the preparation method of the Z-type photocatalyst g-C3N4 / RGO / ZnWO4, reduced graphene oxide (RGO), graphite-phase carbon nitride (g-C3N4) and zinc tungstate are synthesized into the Z-type photocatalyst g-C3N4 / RGO / ZnWO4 through a hydrothermal synthesis method, and the prepared Z-type photocatalyst g-C3N4 / RGO / ZnWO4 has a wider spectral response range, has good absorbance in a visible light region, is easier to excite and generate photo-induced electrons, has better photocatalytic degradation performance, has good degradation efficiency on wastewater such as tetracycline hydrochloride, and can be applied to treatment of antibiotic wastewater.

Description

technical field [0001] The invention belongs to the field of photocatalyst technology, in particular to Z-type photocatalyst g-C 3 N 4 / RGO / ZnWO 4 The preparation method of, the present invention also relates to the application of photocatalytic material, be specifically related to Z type photocatalyst g-C 3 N 4 / RGO / ZnWO 4 Applications. Background technique [0002] With the gradual development and attention of our country's environmental protection, many organic sewage treatment technologies have been developed and improved in recent years. However, the treatment of antibiotic wastewater is still a difficult problem. Its components are complex, difficult to degrade, highly toxic, and directly discharged. Can cause great damage to creatures. [0003] Since the use of antibiotics, there have been many varieties of antibiotics. There are hundreds of antibiotics used in clinical medicine, and the annual consumption of antibiotics in the world can reach more than 30 milli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/30
CPCB01J27/24C02F1/30C02F2305/10C02F2101/30B01J35/39
Inventor 卢俊彩
Owner 卢俊彩
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