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Preparing method for electro-deposition molybdenum disulfide quantum dot modified titanium dioxide nanotube array

A technology of nanotube array and molybdenum disulfide, which is applied in the field of photocatalytic degradation of pollutant materials, can solve the problems of cumbersome process, complex conditions, and long time consumption, and achieve the effect of simple and easy operation, low cost and high efficiency

Active Publication Date: 2018-02-23
NANTONG TEXTILE & SILK IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, molybdenum disulfide and titanium dioxide composite materials are mostly prepared by hydrothermal method, most of which have the disadvantages of cumbersome process, complicated conditions, and long time consumption.

Method used

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  • Preparing method for electro-deposition molybdenum disulfide quantum dot modified titanium dioxide nanotube array
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  • Preparing method for electro-deposition molybdenum disulfide quantum dot modified titanium dioxide nanotube array

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preparation example Construction

[0035] see figure 1 , figure 1 It is a schematic flow chart of the preparation method of the electrodeposited molybdenum disulfide quantum dot modified titanium dioxide nanotube array of the present invention. like figure 1 As shown, the present invention provides a method for preparing electrodeposited molybdenum disulfide quantum dots modified titanium dioxide nanotube arrays, comprising the following steps:

[0036] Pretreatment of titanium sheet;

[0037] Preparation of TiO by Anodic Oxidation 2 nanotube arrays;

[0038] Molybdenum disulfide powder is made into solid flake molybdenum disulfide nanosheets with an infrared tablet press;

[0039] Using the molybdenum disulfide nanosheet as an anode, the TiO 2 The nanotube array is used as the cathode, and the bistrifluoromethanesulfonimide lithium aqueous solution is used as the electrolyte, and an electrodeposited molybdenum disulfide quantum dot modified titanium dioxide nanotube array is prepared.

[0040] In order ...

Embodiment 1

[0060] This implementation case shows a preparation method of electrodepositing molybdenum disulfide quantum dots modified titanium dioxide nanotube arrays according to the following steps:

[0061] (1) Pretreatment of the titanium sheet: ultrasonically clean the base of the pure titanium sheet with acetone and absolute ethanol for 20 min. Using a platinum sheet electrode as a cathode, insert it into an electrolyte solution containing 98v% ethylene glycol (0.5wt% ammonium fluoride) + 2v% water at the same time, and apply a voltage of 50V for 2h to obtain TiO 2 The nanotube array was then calcined at 450°C for 2h to transform from amorphous state to anatase.

[0062] (2) The electrodeposition method is used to prepare the titanium dioxide nanotube array compounded with molybdenum disulfide nanoparticles. Prepare a 0.1wt% aqueous solution of lithium bistrifluoromethanesulfonimide, and use the solution as an electrolyte after the solution is uniformly dispersed. Use an infrared ...

Embodiment 2

[0071] This implementation case shows a preparation method of electrodepositing molybdenum disulfide quantum dots modified titanium dioxide nanotube arrays according to the following steps:

[0072] (1) Pretreatment of the titanium sheet: ultrasonically clean the base of the pure titanium sheet with acetone and absolute ethanol for 20 min. Using a platinum sheet electrode as a cathode, insert it into an electrolyte solution containing 98v% ethylene glycol (0.5% ammonium fluoride) + 2% water at the same time, apply a voltage of 50V for anodic oxidation for 2h, and obtain TiO 2 The nanotube array was then calcined at 450°C for 2h to transform from amorphous state to anatase.

[0073] (2) The electrodeposition method is used to prepare the titanium dioxide nanotube array compounded with molybdenum disulfide nanoparticles. Prepare a 0.1wt% aqueous solution of lithium bistrifluoromethanesulfonimide, and use the solution as an electrolyte after the solution is uniformly dispersed. ...

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Abstract

The invention discloses a preparing method for an electro-deposition molybdenum disulfide quantum dot modified titanium dioxide nanotube array. The preparing method includes the steps that firstly, cleaning pretreatment is conducted on the surface of a substrate material; an ethylene glycol solution containing ammonium fluoride and water is prepared to serve as an electrolytes, the titanium substrate material is subjected to electrochemical anodic oxidation and is arranged in a muffle furnace to be roasted; then powdery molybdenum disulfide is prepared into piece-shaped molybdenum disulfide through an infrared tablet machine; and finally, by means of a direct-current pressure stabilizing power source, a molybdenum disulfide piece serves as an anode, the titanium dioxide nanotube array serves as the cathode, and a lithium bisimide solution serves as an electrolyte for conducting electrolytic stripping to deposit molybdenum disulfide quantum dots. The titanium dioxide nanotube array cancontrollably deposit the molybdenum disulfide quantum dots, and the TiO2 photo-catalytic efficiency can be improved; and the light absorption capability is improved, a composite material is used for forming a P-N node, and the photo-catalytic degradation capability of electrodes on organic pollutants can be improved when the P-N node is applied to photocatalysis.

Description

technical field [0001] The invention relates to the technical field of photocatalytic degradation of pollutant materials, in particular to a method for preparing an electrodeposited molybdenum disulfide quantum dot modified titanium dioxide nanotube array. Background technique [0002] The sharp increase in energy demand and large-scale environmental pollution are prominent problems faced by today's society, and organic dye pollution is the most prominent problem in today's water pollution. Titanium dioxide (TiO 2 ), as a new n-type semiconductor material, has been widely used in photocatalytic degradation of pollutants, fuel-sensitized solar cells, Biomedical materials, gas sensors, and hydrogen production by photolysis of water provide new ways for the green degradation of organic pollutants. [0003] Nano-TiO 2 In addition to the same surface effect, low size effect, quantum size effect and macroscopic quantum tunneling effect as ordinary nanomaterials, it also has its...

Claims

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Application Information

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IPC IPC(8): C25D11/26C25D9/08B01J27/051B01J37/34
CPCC25D9/08C25D11/26B01J27/051B01J37/0009B01J37/348B01J35/393B01J35/23B01J35/39
Inventor 赖跃坤董佳宁黄剑莹
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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