Molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and method for preparing same

A titanium dioxide and graphite fiber technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of low photocatalytic efficiency and can only absorb ultraviolet light, and achieve high photocatalytic efficiency, easy to use. The effect of promotion and simple operation process

Inactive Publication Date: 2017-07-21
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the technical problem that existing titanium dioxide photocatalytic materials can only absorb ultraviolet light and have low photocatalytic efficiency. Molybdenum sulfide nanosheets / titanium dioxide nanosheets / graphite fiber composites

Method used

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  • Molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and method for preparing same
  • Molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and method for preparing same
  • Molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and method for preparing same

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preparation example Construction

[0043] A kind of preparation method of molybdenum sulfide nano-sheet / titanium dioxide nano-sheet / graphite fiber composite material provided by the invention, the specific steps are as follows:

[0044] Step 1: Take 0.3 grams of graphite fiber, add it to 18 milliliters, 5 moles per liter of hydrochloric acid solution, and sonicate for 10 minutes to prepare the first mixed solution.

[0045] Step 2: Take 3 parts of the first mixed solution, add different amounts of butyl titanate dropwise to the 3 parts of the first mixed solution, and stir thoroughly for 30 minutes to prepare the second mixed solution.

[0046] Step 3: Add 0.35 ml of hydrogen fluoride solution with a mass fraction of 47% to the second mixed solution, and stir thoroughly for 5 minutes to prepare the third mixed solution.

[0047] Step 4: Put the third mixed solution in a hydrothermal reaction kettle, and fully react at 180° C. for 4 hours to prepare the fourth mixed solution.

[0048] Step 5: Filter the fourth ...

Embodiment 1

[0053] Step 1: First, measure 18 milliliters of 5 mol per liter hydrochloric acid solution and 0.3 grams of graphite fibers and mix and stir for 10 minutes to prepare the first mixed solution.

[0054] Step 2: Then measure 0.5 ml of butyl titanate, add butyl titanate dropwise to the first mixed solution, and then stir the solution for 30 minutes by magnetic force to fully mix the solution evenly to prepare the second mixed solution.

[0055] Step 3: Next, measure 0.35 ml of hydrofluoric acid with a mass fraction of 47%, add the hydrofluoric acid dropwise into the second mixed solution, and stir for 5 minutes to prepare the third mixed solution.

[0056] Step 4: The third mixed solution was placed in a hydrothermal reactor, and reacted at 180°C for 4 hours to prepare the fourth mixed solution.

[0057] Step 5: Filter the fourth mixed solution to obtain a precipitate, and ultrasonically clean the obtained precipitate with isopropanol solution (the volume ratio of deionized water...

Embodiment 2

[0063] Step 1: First, measure 18 milliliters of 5 mol per liter hydrochloric acid solution and 0.3 grams of graphite fibers and mix and stir for 10 minutes to prepare the first mixed solution.

[0064] Step 2: Measure 1.0 ml of butyl titanate, add the butyl titanate dropwise to the first mixed solution, and then stir the solution by magnetic force for 30 minutes to fully mix the solution evenly to prepare the second mixed solution.

[0065] Step 3: Next, measure 0.35 ml of hydrofluoric acid with a mass fraction of 47%, add the hydrofluoric acid dropwise into the second mixed solution, and stir for 5 minutes to prepare the third mixed solution.

[0066] Step 4: The third mixed solution was placed in a hydrothermal reactor, and reacted at 180°C for 4 hours to prepare the fourth mixed solution.

[0067] Step 5: Filter the fourth mixed solution to obtain a precipitate, and ultrasonically clean the obtained precipitate with isopropanol solution (the volume ratio of deionized water ...

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Abstract

The invention discloses a molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and a method for preparing the same. The molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and the method have the advantages that visible light photocatalytic effects of titanium dioxide nano-sheets can be enhanced by three-dimensional heterogeneous structures formed by two-dimensional molybdenum sulfide nano-sheets, two-dimensional titanium dioxide nano-sheets and one-dimensional graphite fibers, excellent photocatalytic effects can be realized by the molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material in ultraviolet light and visible light, accordingly, the sunlight utilization ranges can be expanded, and photocatalytic effects can be improved; the molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material is high in methyl orange photocatalytic efficiency in the ultraviolet light and the visible light, and accordingly the sunlight utilization rate can be effectively increased; operation procedures are simple, the molybdenum sulfide nano-sheet/titanium dioxide nano-sheet/graphite fiber composite material and the method are low in production cost and easy to popularize, and application of titanium dioxide in actual photocatalytic fields can be greatly promoted.

Description

technical field [0001] The invention relates to the field of photocatalysts, in particular to a molybdenum sulfide nanosheet / titanium dioxide nanosheet / graphite fiber composite material with ultraviolet and visible light photocatalytic effects and a preparation method thereof. Background technique [0002] In recent years, the field of photocatalysis has developed rapidly, and photocatalytic degradation of organic matter is an important branch of photocatalysis research. Photocatalytic technology is a chemical reaction under the action of light. Photochemical reactions require molecules to absorb electromagnetic radiation of a specific wavelength, and are excited to generate molecular excited states, which then undergo chemical reactions to generate new substances, or become intermediate chemical products that trigger thermal reactions. The activation energy of photochemical reactions comes from the energy of photons. In the utilization of solar energy, photoelectric conver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051
CPCB01J27/051B01J35/004
Inventor 田健胡晓琳刘香高健雄崔洪芝
Owner SHANDONG UNIV OF SCI & TECH
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