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A kind of visible light response sodium iron titanate photocatalytic material and its preparation method and application

A photocatalytic material, sodium ferric titanate technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, physical/chemical process catalysts, etc., can solve problems that are not enough to guide large-scale industrial applications, quantum conversion Low efficiency, low utilization rate of solar energy and other problems, to achieve the effect of easy industrial production, low cost and good photocatalytic performance

Active Publication Date: 2017-11-28
徐州博创建设发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the photocatalytic materials studied are not enough to guide large-scale industrial applications. On the other hand, the photoresponse range of existing photocatalytic materials is narrow, the quantum conversion efficiency is low, and the solar energy utilization rate is low. These are still restricting the application of photocatalytic materials. the key to

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  • A kind of visible light response sodium iron titanate photocatalytic material and its preparation method and application
  • A kind of visible light response sodium iron titanate photocatalytic material and its preparation method and application
  • A kind of visible light response sodium iron titanate photocatalytic material and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0042] Preparation of NaFeTi by High Temperature Solid Phase Method 3 o 8 , That is, mix various oxides or carbonates as raw materials according to the target composition stoichiometric ratio, and then synthesize them in an air atmosphere under normal pressure.

[0043] According to the chemical formula NaFeTi 3 o 8 , respectively weighed sodium oxide Na 2 O: 0.62 g, Fe3O4 3 o 4 : 1.54 g, Titanium Dioxide TiO 2 : 4.79 grams, grind the raw materials in an agate mortar and mix them evenly, then perform the first calcination, the calcination temperature is 250°C, the calcination time is 5 hours, the atmosphere is air atmosphere, the sample is taken out and cooled naturally; the first calcined sample After grinding evenly, carry out the second calcination, the calcination temperature is 600°C, the calcination time is 10 hours, the atmosphere is air atmosphere, take out the sample and cool naturally; after the sample is ground evenly, carry out the third calcination in the ai...

Embodiment 2

[0050] Preparation of NaFeTi by High Temperature Solid Phase Method 3 o 8 , according to the chemical formula NaFeTi 3 o 8 , respectively weighed sodium carbonate Na 2 CO 3 : 1.06 g, Fe2O3 2 o 3 : 1.60 g, titanium dioxide TiO 2 : 4.79 grams, grind the raw materials in an agate mortar and mix them evenly, then perform the first calcining, the calcining temperature is 500°C, the calcining time is 2 hours, the atmosphere is air atmosphere, the sample is taken out and cooled naturally; the first calcined sample After grinding evenly, carry out the second calcination, the calcination temperature is 950°C, the calcination time is 17 hours, the atmosphere is air atmosphere, take out the sample and cool naturally; after the sample is ground evenly, carry out the third calcination in the air atmosphere, the calcination temperature is 1300°C , the calcination time is 12 hours, and NaFeTi is obtained 3 o 8 powder.

[0051] After observation, the NaFeTi prepared in Example 2 3 ...

Embodiment 3

[0053] Preparation of NaFeTi 3 o 8

[0054] Preparation of NaFeTi by High Temperature Solid Phase Method 3 o 8 , respectively weighed sodium chloride NaCl: 1.17 grams, ferric chloride FeCl 3 : 3.24 g, Titanium Dioxide TiO 2 : 4.79 grams, the raw materials are ground in an agate mortar and mixed evenly, and then calcined for the first time, the calcining temperature is 400 ° C, the calcining time is 6 hours, the atmosphere is air atmosphere, the sample is taken out and cooled naturally; the sample calcined for the first time After uniform grinding, the second calcination is carried out, the calcination temperature is 850°C, the calcination time is 8 hours, the atmosphere is air atmosphere, the sample is taken out and cooled naturally; after the sample is evenly ground, the third calcination is carried out in the air atmosphere, the calcination temperature is 1200°C , the calcination time is 18 hours, and the photocatalyst sodium ferric titanate NaFeTi is obtained 3 o 8 p...

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Abstract

The invention discloses a visible light response sodium iron titanate photocatalytic material and its preparation method and application. The molecular formula of the photocatalytic material is NaFeTi3O8, which can be prepared by a high-temperature solid-phase method or a sol-gel method. The preparation method is simple, Low preparation cost; the obtained NaFeTi3O8 powder particles are uniform, with an average particle size of 80-100 nanometers, a wide absorption band in the visible light wavelength range, good chemical stability, economical and practical, and can treat organic pollution in water bodies It is a potential green and visible light-responsive photocatalytic material.

Description

technical field [0001] The invention relates to a visible light response sodium iron titanate photocatalytic material, in particular to NaFeTi 3 o 8 The preparation method and application thereof belong to the field of inorganic photocatalytic materials. Background technique [0002] At present, with the rapid development of modern industrial technology, the consumption of traditional fossil energy dominated by coal, oil and natural gas has risen sharply, resulting in energy depletion, energy crisis, and a series of serious environmental problems at the same time. Photocatalytic technology With the characteristics of low cost and environmental friendliness, it has become a new hope for future high-tech. [0003] Photocatalytic materials refer to a class of semiconductor materials that can induce photoredox reactions under the action of light. Semiconductor photocatalytic technology has attracted much attention because of its good application prospects in clean energy produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78B82Y30/00B82Y40/00C02F1/30
CPCY02W10/37
Inventor 乔学斌
Owner 徐州博创建设发展集团有限公司
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