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Preparation method of MIL-101 photocatalyst

A photocatalyst and hydrothermal technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problem of simultaneously meeting the requirements of heavy metal-organic compound pollution treatment, etc. question

Inactive Publication Date: 2020-06-02
启东茂材实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods for separately treating heavy metals and organic matter are different in terms of implementation conditions and treatment principles, and it is difficult to meet the treatment requirements of heavy metal-organic compound pollution at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of preparation method of MIL-101 photocatalyst, comprises the steps: with 25 parts of Cr(NO 3 ) 3 •9H 2 O and 10 parts of terephthalic acid were added to 75 parts of deionized water, stirred at 30°C for 45 minutes, then 8 parts of HF were added to the above solution, mixed and stirred for 45 minutes, and then the mixed solution was transferred to a polytetrafluoroethylene reactor , heated in water at 210°C for 14h, filtered the obtained mixed solution through a 250-mesh stainless steel filter, washed with absolute ethanol, DMF, and distilled water for 5 times, then dried at 140°C for 15h under vacuum, and cooled to obtain; each raw material Both are parts by weight.

Embodiment 2

[0015] A kind of preparation method of MIL-101 photocatalyst, comprises the steps: with 20 parts of Cr(NO 3 ) 3 •9H 2 O and 5 parts of terephthalic acid were added to 70 parts of deionized water, stirred at 25°C for 40 minutes, then 7 parts of HF were added to the above solution, mixed and stirred for 40 minutes, and then the mixed solution was transferred to a polytetrafluoroethylene reactor , heated in water at 205°C for 13h, filtered the obtained mixed solution through a 250-mesh stainless steel filter, washed 4 times with absolute ethanol, DMF, and distilled water, and then dried at 135°C under vacuum for 14h, and cooled to obtain; each raw material Both are parts by weight.

Embodiment 3

[0017] A kind of preparation method of MIL-101 photocatalyst, comprises the steps: with 30 parts of Cr(NO 3 ) 3 •9H 2 O and 15 parts of terephthalic acid were added to 80 parts of deionized water, stirred at 35°C for 50 minutes, then 9 parts of HF were added to the above solution, mixed and stirred for 50 minutes, and then the mixed solution was transferred to a polytetrafluoroethylene reactor , heated in water at 215°C for 15h, filtered the obtained mixed solution through a 250-mesh stainless steel filter, washed 6 times with absolute ethanol, DMF, and distilled water, and then dried at 145°C under vacuum for 16h, and cooled to obtain; each raw material Both are parts by weight.

[0018] The method is simple, quick and easy to operate, and the prepared MIL-101 photocatalyst has excellent catalytic activity and can be prepared on a large scale.

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PUM

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Abstract

The invention discloses a preparation method of an MIL-101 photocatalyst. The method comprises the following steps: adding Cr(NO3)3.9H2O and terephthalic acid into deionized water, stirring for 40-50min, adding HF into the solution, mixing and stirring for 40-50 min, transferring the mixed solution into a polytetrafluoroethylene reaction kettle, carrying out hydrothermal treatment at 205-215 DEGC for 13-15 hours, filtering the obtained mixed solution through a 250-mesh stainless steel filter screen, respectively washing with absolute ethyl alcohol, DMF and distilled water 4-6 times, drying for 14-16 hours under the vacuum condition of 135-145 DEG C, and cooling to obtain the product. The method is simple, convenient, rapid and easy to operate, and the prepared MIL-101 photocatalyst has excellent catalytic activity and can be prepared on a large scale.

Description

technical field [0001] The invention relates to a preparation method of MIL-101 photocatalyst. Background technique [0002] With the rapid development of society, my country's economy has developed rapidly, and various environmental problems have attracted more and more attention. Among them, the pollution of various heavy metals and organic substances in the water environment has become more and more serious. In the wastewater discharged from various industries such as petroleum wastewater, coke, coal mines, tanning, metal smelting, printing and dyeing wastewater, the composite pollution phenomenon of heavy metals and organic matter is particularly prominent. Compared with single pollution, compound pollution with more complex components often has a greater toxic effect on animals, plants and humans. Cr(Ⅵ) pollution mainly comes from the discharge of chemical industries such as electroplating, tanning, printing and dyeing, and is carcinogenic and teratogenic to organisms....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C08G83/00
CPCB01J31/1691B01J31/2239C08G83/008B01J35/39
Inventor 不公告发明人
Owner 启东茂材实业有限公司