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A Fe-doped nano-tio with double pentagonal prism morphology 2 Preparation method of photocatalyst

A photocatalyst and morphology technology, applied in the field of organic pollutant degradation, can solve the problems of low catalytic performance, complex preparation method, high cost, etc., and achieve the effect of improving catalytic activity, wide application prospect and good catalytic activity.

Active Publication Date: 2019-07-09
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the existing TiO 2 Photocatalysts are either complicated in preparation, expensive in cost, or have low catalytic performance. Therefore, a TiO with simple preparation method and high degradation efficiency of organic pollutants is provided. 2 Photocatalyst is very necessary

Method used

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  • A Fe-doped nano-tio with double pentagonal prism morphology <sub>2</sub> Preparation method of photocatalyst
  • A Fe-doped nano-tio with double pentagonal prism morphology <sub>2</sub> Preparation method of photocatalyst
  • A Fe-doped nano-tio with double pentagonal prism morphology <sub>2</sub> Preparation method of photocatalyst

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Embodiment 1

[0014] A Fe-doped nano-TiO with double pentagonal prism morphology 2 The photocatalyst preparation method includes the following steps: ①Dissolve 6g of tetrabutyl titanate in 30mL of absolute ethanol, then add 20mL of oleylamine and 100mg of PVP (polyvinylpyrrolidone), and stir evenly to obtain liquid A; ②Add 51mg of nitric acid nonahydrate Mix iron, 150mg EDTA-2Na, and 25mL DMF evenly to obtain liquid B; ③Add liquid B dropwise to liquid A, stir evenly, transfer to a hydrothermal reaction kettle, react hydrothermally at 200°C for 16h, filter, wash, and dry Fe-doped TiO with double pentagonal prism morphology 2 catalyst of light.

[0015] figure 2 Be the TiO of the Fe-doped double pentagonal prism morphology prepared in embodiment 1 2 The XRD pattern of the photocatalyst is basically consistent with the angle at which the characteristic peaks of the anatase titanium dioxide in the standard chart (PDF01-0562) appear, and no characteristic peaks doped with Fe atoms are observ...

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Abstract

The invention belongs to a kind of Fe-doped nano-TiO with double pentagonal pyramid shape 2 The photocatalyst preparation method comprises the following steps: ① dissolving tetrabutyl titanate in absolute ethanol, then adding oleylamine and PVP, and stirring evenly to obtain liquid A; ② mixing ferric nitrate nonahydrate, EDTA-2Na, and DMF evenly , to obtain liquid B; ③ Add liquid B dropwise to liquid A, stir evenly, transfer to a hydrothermal reaction kettle, react at 160-200°C for 12-18 hours, filter, wash, and dry to obtain Fe-doped bis TiO with pentagonal pyramid morphology 2 catalyst of light. The present invention uses oleylamine, PVP and EDTA-2Na in proportion as a dispersant and a morphology regulator, and combines absolute ethanol and DMF as a reaction solvent to prepare a Fe-doped bismuth with a high-index crystal plane exposed on the surface. Nano-TiO with Pentagonal Pyramid Morphology 2 Photocatalyst, the average particle size is 10nm, which greatly improves the TiO 2 The catalytic activity of the photocatalyst, and the degradation rate of rhodamine B under the ultraviolet light source shows good catalytic activity, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of degradation of organic pollutants, in particular to TiO with Fe-doped double pentagonal prism morphology 2 Photocatalyst preparation method. Background technique [0002] TiO 2 Because the material can effectively catalyze and degrade organic and inorganic pollutants in air and water without causing secondary pollution and can be reused, it has gradually attracted people's attention in recent years. Scientists have carried out many researches on TiO 2 Research on photocatalytic oxidation, reduction or degradation of materials to treat toxic wastes such as DDT, dinitroaniline, trichlorethylene, NO, Cr(VI). But the existing TiO 2 Photocatalysts are either complicated to prepare, expensive, or have low catalytic performance. Therefore, a TiO2 with simple preparation method and high degradation efficiency of organic pollutants is provided. 2 Photocatalyst is very necessary. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/745B01J21/06
CPCB01J21/063B01J23/745B01J35/393B01J35/23B01J35/39
Inventor 周凌云杜玉良黄文单龙龙周云浩
Owner HENAN INST OF SCI & TECH