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Titanium carbide/titanium dioxide/molybdenum sulfide composite material as well as preparation method and application thereof

A technology of titanium dioxide and composite materials, applied in catalyst activation/preparation, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of high price and low output, and achieve the effect of excellent photolysis water hydrogen production rate

Inactive Publication Date: 2019-04-26
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the cocatalyst generally used at present is noble metal platinum, gold etc., the present invention thinks, because its price is expensive, the factors such as output are few, it is very necessary to develop and utilize new cocatalyst

Method used

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  • Titanium carbide/titanium dioxide/molybdenum sulfide composite material as well as preparation method and application thereof
  • Titanium carbide/titanium dioxide/molybdenum sulfide composite material as well as preparation method and application thereof
  • Titanium carbide/titanium dioxide/molybdenum sulfide composite material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0056] A preparation method of titanium carbide / titanium dioxide / molybdenum sulfide composite material, comprising the steps of:

[0057] (1) Measure 100 milliliters of hydrofluoric acid solution with a mass fraction of 40%, weigh 1 gram of titanium-aluminum-carbon powder, fully mix the hydrofluoric acid solution and titanium-aluminum-carbon powder and stir at room temperature for 72 hours to prepare the first A mixed solution; then filter the first mixed solution, and the precipitate obtained is titanium carbide with MXene material structure, the titanium carbide is a lamellar structure, and its particle size is about 200 mesh;

[0058] (2) 100 milligrams of titanium carbide and 10 milligrams of sodium fluoroborate in step (1) were added to 10 milliliters of hydrochloric acid solution with a concentration of 1 mol / L, and magnetically stirred for 30 minutes to prepare the second mixed solution;

[0059] (3) Put the second mixed solution of step (2) in a hydrothermal reaction k...

Embodiment 2

[0064] A kind of preparation method of titanium carbide / titanium dioxide / molybdenum sulfide composite material, with embodiment 1, difference is: in step (4), get the precipitate of 60 milligrams of steps (3), mix it with 8.1 milligrams of molybdenum trioxide solution and 23.15 mg of potassium thiocyanate was added to deionized water, and magnetically stirred for 60 minutes to prepare a fourth mixed solution.

Embodiment 3

[0066] A kind of preparation method of titanium carbide / titanium dioxide / molybdenum sulfide composite material, with embodiment 1, difference is: in step (4), get the precipitate of 60 milligrams of steps (3), mix it with 13.5 milligrams of molybdenum trioxide solution and 38.6 mg of potassium thiocyanate was added to deionized water, and magnetically stirred for 60 minutes to prepare a fourth mixed solution.

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Abstract

The invention relates to the technical field of photocatalysts, in particular to a titanium carbide / titanium dioxide / molybdenum sulfide composite material as well as a preparation method and application thereof. The composite material comprises laminar silicon carbide, nanosheet-shaped titanium dioxide and nanospot-shaped molybdenum sulfide; the molybdenum sulfide consists of 1T and 2H mixed phase; the nanosheet-shaped titanium dioxide grows on the laminar silicon carbide in an inserting way; and the nanospot-shaped molybdenum sulfide is distributed on the surfaces of the laminar silicon carbide and the nanosheet-shaped titanium dioxide. The titanium carbide / titanium dioxide / molybdenum sulfide composite material prepared by the method is a double cocatalyst without noble metal; furthermore, transmission of light-generated electrons and separation of light-generated electron hole pairs are effectively promoted, the photocatalytic effect is significantly improved, and the titanium carbide / titanium dioxide / molybdenum sulfide composite material is an efficient photocatalyst with excellent performance.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a titanium carbide / titanium dioxide / molybdenum sulfide composite material and a preparation method and application thereof. Background technique [0002] With the rapid consumption of global fossil energy and the deteriorating environment, the development of environmentally friendly, low-cost, and abundant renewable energy has become an urgent problem for human beings to be solved. As an environmentally friendly energy source, hydrogen has a high calorific value, is easy to transport, and is renewable, so converting solar energy into hydrogen energy is one of the most ideal ways to develop new energy sources. Hydrogen production by photolysis of water can directly use solar energy to decompose water to produce hydrogen without consuming other energy sources and has no pollution to the environment. It has attracted extensive attention from researchers and has become the mos...

Claims

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Application Information

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IPC IPC(8): B01J27/22B01J37/10C01B3/04
CPCC01B3/042B01J27/22B01J37/10B01J35/23B01J35/39Y02E60/36
Inventor 田健尹宇航李昱杰薛艳君郭奕辰崔洪芝
Owner SHANDONG UNIV OF SCI & TECH
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