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

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; ...

Images