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Preparation method and application of iron-supported titanium dioxide nanotubes with catalytic oxidation activity

A titanium dioxide, catalytic oxidation technology, applied in refining to remove heteroatoms, etc., can solve the problem of difficult removal of sulfur-containing species, and achieve the effect of high yield and low preparation cost

Inactive Publication Date: 2016-05-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that sulfur-containing species in existing oil products are difficult to remove, and to provide a preparation method and application of iron-loaded titanium dioxide nanotubes with catalytic oxidation activity

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  • Preparation method and application of iron-supported titanium dioxide nanotubes with catalytic oxidation activity
  • Preparation method and application of iron-supported titanium dioxide nanotubes with catalytic oxidation activity

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specific Embodiment approach 1

[0020] Specific embodiment one: a kind of preparation method of the iron-supported titanium dioxide nanotube with catalytic oxidation activity of the present embodiment is carried out through the following steps:

[0021] 1. Treat the titanium source to obtain titanium dioxide crystals with anatase as the main crystal form;

[0022] 2. Weigh the titanium dioxide crystal powder obtained in the above steps, place it in the Teflon reactor lining containing 10M NaOH solution, stir it magnetically for 30 minutes at room temperature, then transfer the solution to the autoclave, and place it at 150 Under the environment of ℃, place it for 48 hours, and after the reaction, sodium-type titanium dioxide nanotubes are obtained; wherein the mass volume ratio of titanium dioxide crystals to NaOH is 1g:20-25mL;

[0023] 3. Wash the sodium-type titanium dioxide nanotubes obtained in the above step 2 repeatedly with deionized water until the pH of the solution reaches 7, filter with suction, ...

specific Embodiment approach 2

[0026] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the method for processing the titanium source described in step one is: take the titanium source, add deionized water, stir and hydrolyze, suction filter, dry, and dry at 500 Calcining at ℃ for 5 hours to obtain titanium dioxide crystals mainly in anatase crystal form; wherein, the volume ratio of titanium source to deionized water is 1:1-3; the titanium source is n-tetrabutyl titanate. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the mass volume ratio of titanium dioxide crystals and NaOH described in step 2 is 1 g:21-24 mL. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method and an application of a ferrum loaded titanium dioxide nanotube with a catalytic oxidation activity, and relates to a preparation method for hydro-thermally synthesizing a titanium dioxide nanotube by taking tetra N butyl titanate as a titanium source and loading a ferrous substance by aftertreatment and application thereof, aiming to solve the problem that sulfur contained substances in an existing oil product are difficult to remove. The preparation method comprises the following steps: firstly, processing a titanium source firstly by taking tetra N butyl titanate as a precursor so as to obtain a titanium dioxide crystal focusing on an anatase crystal; then enabling a NaOH solution with high concentration to react with the titanium dioxide crystal, and carrying out hydro-thermal treatment in a high-pressure reaction kettle so as to obtain a titanium dioxide nanotube, and then taking ferric nitrate nonahydrate as a ferrous source to obtain a ferrous loaded titanium dioxide nanotube. The titanium dioxide nanotube prepared by the invention has higher activity in the catalytic reaction, and is mainly applied to the catalytic oxidation desulfurization.

Description

technical field [0001] The invention relates to a method for preparing iron-loaded titanium dioxide nanotubes with different titanium sources, in particular to the preparation of titanium dioxide nanotubes by hydrothermal method using n-tetrabutyl titanate as the titanium source and the preparation of iron-loaded titanium dioxide by using iron nitrate nonahydrate as the iron source nanotube method. Background technique [0002] Titanium dioxide is a multifunctional material, which can be used in many fields, including coatings, food, photocatalysis, biopharmaceuticals, photolysis of water, photosensitive materials and so on. In the past few years, researchers have invested a lot of research into the development of new nanomaterials, including titanium dioxide nanotubes. Compared with traditional titania nanoparticles, titania nanotubes exhibit unique properties, these properties include: (1) larger specific surface area and pore volume; (2) excellent ion exchange capacity; ...

Claims

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Application Information

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IPC IPC(8): B01J23/745C10G45/04
Inventor 孙印勇张幸冷坤岳
Owner HARBIN INST OF TECH
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