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Molybdenum disulfide/MIL-101 composite photocatalyst material as well as preparation method and application thereof

A technology of composite photocatalysis and molybdenum disulfide, which is applied in the field of photocatalytic materials, can solve the problems of reducing photocatalytic activity and poor electrical conductivity, and achieves the effects of easy operation, low equipment requirements and huge specific surface area.

Active Publication Date: 2017-04-26
华工同创(东莞)环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

MoS 2 Poor electrical conductivity and tendency to stack layers reduces the number of exposed active sites at the edge, thereby reducing its photocatalytic activity

Method used

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  • Molybdenum disulfide/MIL-101 composite photocatalyst material as well as preparation method and application thereof
  • Molybdenum disulfide/MIL-101 composite photocatalyst material as well as preparation method and application thereof
  • Molybdenum disulfide/MIL-101 composite photocatalyst material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Weigh 1.004g chromium nitrate and 0.412g terephthalic acid, measure 0.109mL hydrofluoric acid, mix and dissolve in 12mL water, and stir evenly;

[0032] (2) Transfer the mixed solution obtained in step (1) to a 25mL stainless steel reaction kettle, put it in an oven and react at 220°C for 8h, and then naturally cool to room temperature;

[0033] (3) Rinse the reaction product obtained in step (2) twice with water and ethanol, purify, filter, and finally dry the product in a vacuum oven at 150°C overnight to obtain MIL-101;

[0034] (4) Take by weighing 40mg sodium molybdate and 80mg thioacetamide respectively, be dissolved in water, stir evenly;

[0035] (5) Add 40 mg of MIL-101 powder to the mixed solution obtained in step (4), and magnetically stir for 7 hours to obtain a sodium molybdate / thioacetamide / MIL-101 dispersion;

[0036] (6) Transfer the dispersion obtained in step (5) to a 25mL stainless steel reaction kettle, put it in an oven and react at 200°C for 2...

Embodiment 2

[0039] (1) Weigh 2.007g chromium nitrate and 0.823g terephthalic acid, measure 0.217mL hydrofluoric acid, mix and dissolve in 24mL water, and stir evenly;

[0040] (2) Transfer the mixed solution obtained in step (1) to a 50mL stainless steel reaction kettle, put it into an oven and react at 220°C for 8h, and then naturally cool to room temperature;

[0041] (3) Rinse the reaction product obtained in step (2) twice with water and ethanol, purify, filter, and finally dry the product in a vacuum oven at 150°C overnight to obtain MIL-101;

[0042] (4) Take by weighing 30mg sodium molybdate and 60mg thioacetamide respectively and dissolve in water, stir evenly;

[0043] (5) Add 20 mg of MIL-101 powder to the mixed solution obtained in step (4), and magnetically stir for 5 hours to obtain a sodium molybdate / thioacetamide / MIL-101 dispersion;

[0044] (6) Transfer the dispersion obtained in step (5) to a 25mL stainless steel reaction kettle, put it in an oven and react at 180°C for ...

Embodiment 3

[0047] (1) Weigh 3.011g of chromium nitrate and 1.235g of terephthalic acid, measure 0.326mL of hydrofluoric acid, mix and dissolve in 36mL of water, and stir evenly;

[0048] (2) Transfer the mixed solution obtained in step (1) to a 50mL stainless steel reaction kettle, put it in an oven and react at 220°C for 8h, and then naturally cool to room temperature;

[0049] (3) Rinse the reaction product obtained in step (2) twice with water and ethanol, purify, filter, and finally dry the product in a vacuum oven at 150°C overnight to obtain MIL-101;

[0050] (4) Take by weighing 67.5mg sodium molybdate and 135mg thioacetamide respectively and dissolve in water, stir evenly;

[0051] (5) Add 30 mg of MIL-101 powder to the mixed solution obtained in step (4), and magnetically stir for 8 hours to obtain a sodium molybdate / thioacetamide / MIL-101 dispersion;

[0052] (6) Transfer the dispersion liquid obtained in step (5) to a 25mL stainless steel reaction kettle, put it in an oven and...

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Abstract

The invention belongs to the technical field of photocatalyst materials and discloses a molybdenum disulfide / MIL-101 composite photocatalyst material, a preparation method thereof and application in the field of antibiotic wastewater degradation treatment, in particular application in the field of degradation of antibiotic wastewater containing ciprofloxacin. The preparation method comprises the following steps: dissolving chromic nitrate, terephthalic acid and hydrofluoric acid into water, uniformly stirring, heating and reacting to obtain MIL-101; dissolving sodium molybdate and thioacetamide into water, uniformly stirring, then adding the MIL-101 obtained in the step (1), uniformly stirring, heating and reacting to obtain the MoS2 / MIL-101 composite photocatalyst material. The photocatalyst material disclosed by the invention contains highly dispersed MoS2 nanosheets and more exposed MoS2 active edges, has excellent composite photocatalytic performance and can be applied to antibiotic wastewater degradation treatment, especially realization of efficient degradation treatment on the antibiotic wastewater containing ciprofloxacin.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic materials, in particular to a molybdenum disulfide / MIL-101 composite photocatalytic material and its preparation method and its application in the field of degradation and treatment of antibiotic wastewater, especially in the degradation of antibiotic wastewater containing ciprofloxacin applications in the field. Background technique [0002] Ciprofloxacin is a class of antibiotics frequently used in daily life. Its half-life in the environment is short, but it is continuously released into the water environment in large quantities, which makes it easy to form "false persistent" pollution. . Antibiotic pollutants left in the water environment can cause harm to human health through the enrichment of food chains, and at the same time have a significant impact on biodiversity in water bodies. Therefore, the research on the removal of antibiotic-containing wastewater has attracted more and mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34B01J35/10C02F1/30C02F101/38C02F101/34
CPCC02F1/30B01J31/34C02F2101/34C02F2101/38C02F2305/10C02F2103/343B01J2531/0213B01J2531/62B01J35/60B01J35/39Y02W10/37
Inventor 程建华杨草郑华生张鹏
Owner 华工同创(东莞)环保技术有限公司
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