Supported type Fe2O3 composite photocatalyst

A technology of composite light and catalyst, applied in the field of photocatalysis, to achieve the effect of improving lipophilicity, easy dispersion and improving effect

Active Publication Date: 2018-07-13
NINGDE NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The application of photocatalytic oxidation technology in the degradation of organic matter contained in sewage and the desulfuri

Method used

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  • Supported type Fe2O3 composite photocatalyst
  • Supported type Fe2O3 composite photocatalyst
  • Supported type Fe2O3 composite photocatalyst

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Experimental program
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preparation example Construction

[0027] Embodiments of the present invention also provide a loaded Fe 2 o 3 The preparation method of composite photocatalyst, it comprises the following steps:

[0028] S1, synthesis of metal-organic framework MIL-100(Fe): dissolve iron salt in water, add 1,3,5-trimethyl benzenetricarboxylate, react in a closed state at 120-150°C for 2-5 days, separate , washing and drying to obtain MIL-100(Fe);

[0029] S2, porous Fe 2 o 3 Synthesis: heating the MIL-100(Fe) at the first heating rate to the first temperature for 1.5 to 3 hours, then heating at the second heating rate to the second temperature, and cooling down immediately to obtain the porous Fe 2 o 3 , wherein, the first temperature is 280-300°C, and the second temperature is 400-500°C;

[0030] S3, SDS / Fe 2 o 3 Synthesis: the porous Fe 2 o 3 Dispersed in SDS solution, separated, washed and dried after adsorption reaction for 1-3 hours, wherein the concentration of the SDS solution is 0.125-0.5g / L.

[0031] Further...

Embodiment 1

[0045] This embodiment provides a porous Fe 2 o 3 Photocatalyst, it is prepared according to the following steps:

[0046] (1) 0.378g of FeCl 3 ·6H 2 O is added to the lining of polytetrafluoroethylene, and then 10ml of deionized water is added. After completely dissolving, add 0.272g of 1,3,5-trimethyl benzenetricarboxylate and magnetically stir for about 5min, then put the lining into the reaction kettle. After the stainless steel outer lining is tightened, put it into an oven to keep warm at 130°C for 3 days, and then cool down to room temperature naturally. After the reaction, use a high-speed centrifuge at a speed of 8000r / min to centrifuge for 10 minutes, then ultrasonically wash 6 times with methanol, and place it in an oven (80°C) to insulate and dry. The prepared sample is the MIL-100(Fe) sample .

[0047] (2) Take the above MIL-100(Fe) material, grind the solid product with an agate mortar, put it in a ceramic crucible, place it in a muffle furnace at a heating ...

Embodiment 2

[0049] This embodiment provides a porous Fe 2 o 3 Photocatalyst, its difference with embodiment 1 is:

[0050] In step (2), continue to raise the temperature to 400° C. at a rate of 1° C. / min and then drop the temperature immediately. labeled as Fe 2 o 3 -400.

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Abstract

The invention provides a supported type Fe2O3 composite photocatalyst, and relates to the technical field of photocatalysis. The supported type Fe2O3 composite photocatalyst comprises porous Fe2O3 andSDS which is supported on the porous Fe2O3, wherein the porous Fe2O3 is prepared by roasting an organic metal framework MIL-100; the porous Fe2O3 is dispersed into the SDS solution and is subjected to adsorption reaction for 1-3h; then the product is separated, washed and dried to obtain the supported type Fe2O3 composite photocatalyst. The composite photocatalyst is of a porous structure, high in photocatalyzing performance, and capable of effectively removing nitrogen-containing component in fuel oil; in addition, the preparation method is simple, and easy to implement, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, and in particular to a supported Fe 2 o 3 composite photocatalyst. Background technique [0002] Environmental pollution and energy shortage are major issues affecting sustainable development in the modern world. With the development of the world economy, countries around the world are paying more and more attention to the requirements of the environment, and the content of sulfur, oxygen and nitrogen elements in oil products is required to be lower and lower. If the content of these elements in the fuel is not reduced, the combustion of these substances will emit polluting NO x , SO x Gas, harmful to human health and ecological environment. NO x The emissions are mainly determined by the nitrogen content of the fuel, so the removal of nitrogen from the fuel is the key to the prevention and control of NO x fundamental measures against air pollution. The existing fuel oil denitrific...

Claims

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Application Information

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IPC IPC(8): B01J31/28C10G32/04
CPCB01J31/0225B01J31/28B01J35/004B01J35/023C10G29/16C10G32/04C10G2300/202
Inventor 梁若雯颜桂炀沈佳慧郑丽咏黄苏明苏美珍兰静莹
Owner NINGDE NORMAL UNIV
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