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Method for synthesizing anatase titanium dioxide and manganese dioxide nanocomposite through surfactant assisted electrodeposition and application of method

A nanocomposite material, surfactant technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, metal/metal oxide/metal hydroxide catalysts, etc. Long cycle, uneven product morphology and other problems, to achieve the effect of good stability and uniform morphology

Active Publication Date: 2017-01-04
LINGNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects of high reaction temperature, long reaction cycle, inhomogeneous product appearance, poor stability and low photocatalytic performance in the preparation of composite materials in the prior art, and provide a surface active Method for synthesis of anatase titanium dioxide and manganese dioxide nanocomposites by agent-assisted electrodeposition

Method used

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  • Method for synthesizing anatase titanium dioxide and manganese dioxide nanocomposite through surfactant assisted electrodeposition and application of method
  • Method for synthesizing anatase titanium dioxide and manganese dioxide nanocomposite through surfactant assisted electrodeposition and application of method
  • Method for synthesizing anatase titanium dioxide and manganese dioxide nanocomposite through surfactant assisted electrodeposition and application of method

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Embodiment 1

[0038] A preparation method for the synthesis of anatase titanium dioxide and manganese dioxide nanocomposites by surfactant-assisted electrodeposition, comprising the steps of:

[0039] (1) In a beaker, add 7.5 g of sodium dodecyl sulfate (SDS), 37.5 g of glycerol, and 10 mL of n-hexane, and stir well to obtain solution A;

[0040](2) In another beaker, add 2.5 g of manganese sulfate, 5 g of ammonium fluoride, 3 g of disodium ethylenediaminetetraacetic acid (disodium EDTA), appropriate amount of distilled water, stir well, and dilute to a 500 mL volumetric flask , to obtain solution B;

[0041] (3) Add solution B dropwise to solution A, and the formed mixed solution first goes through the process of turbidity to clarification, then turbidity, and clarification again, and the mixed solution formed during the second clarification is microemulsion C. The regulated power supply was adjusted to 2.5 V, the 2 × 3 cm titanium sheet was used as the anode, the 2 × 3 cm copper sheet wa...

Embodiment 2

[0044] A preparation method for the synthesis of anatase titanium dioxide and manganese dioxide nanocomposites by surfactant-assisted electrodeposition, comprising the steps of:

[0045] (1) In a beaker, add 20 g of cetyltrimethylammonium bromide (CTAB), 100 g of glycerol, and 50 mL of n-hexane, and stir well to obtain solution A;

[0046] (2) In another beaker, add 2.5 g of manganese sulfate, 5 g of ammonium fluoride, 3 g of disodium ethylenediaminetetraacetic acid (disodium EDTA), appropriate amount of distilled water, stir well, and dilute to a 500 mL volumetric flask , to obtain solution B;

[0047] (3) Add solution B to solution A dropwise, the formed mixed solution first goes through the process of turbidity to clarification, then turbidity, and clarification again, and the mixed solution formed during the second clarification is microemulsion C. The regulated power supply was adjusted to 2.5 V, the 2 × 3 cm titanium sheet was used as the anode, the 2 × 3 cm copper shee...

Embodiment 3

[0050] A preparation method for the synthesis of anatase titanium dioxide and manganese dioxide nanocomposites by surfactant-assisted electrodeposition, comprising the steps of:

[0051] (1) In a beaker, add 10 g sodium dodecylbenzenesulfonate, 30 g n-butanol, and 40 mL n-heptane, and stir well to obtain solution A;

[0052] (2) In another beaker, add 2.5 g of manganese sulfate, 5 g of ammonium fluoride, 3 g of disodium ethylenediaminetetraacetic acid (disodium EDTA), appropriate amount of distilled water, stir well, and dilute to a 500 mL volumetric flask , to obtain solution B;

[0053] (3) Add solution B to solution A dropwise, the formed mixed solution first goes through the process of turbidity to clarification, then turbidity, and clarification again, and the mixed solution formed during the second clarification is microemulsion C. The regulated power supply was adjusted to 5 V, the 2 × 3 cm titanium sheet was used as the anode, the 2 × 3 cm copper sheet was used as the...

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Abstract

The invention provides a method for synthesizing anatase titanium dioxide and manganese dioxide nanocomposite through surfactant assisted electrodeposition. According to the method, a manganese saline solution serves as a water phase, microemulsion is formed by the water phase, a surfactant, a cosurfactant and an oil phase and serves as an electrolyte solution, a constant potential deposition method is used, and a titanium sheet serves as a titanium source, so that the nanocomposite is prepared. Through changing of the composition of the microemulsion, the concentration of manganese ions and fluorine ion, the magnitude of electrolytic voltage and the electrolytic time, the morphology and the size of the nanocomposite are adjusted. According to the method, a low reagent is selected to serve as a raw material, under the room microemulsion electrolyte environment, the reaction is carried out, and the nanocomposite is obtained. The problem that during high-temperature treatment, the morphology and the stability of products are affected is solved, the beneficial effects of being high in preparing technology, low in cost, rapid, energy-saving, and high in efficiency are achieved, the prepared nanocomposite is expected to be widely applied in fields of photocatalytically splitting of water into hydrogen, degradation of organic contaminants, electrochemical energy storage, environmental energy catalysis, battery materials and the like.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, more specifically, to a method and application for synthesizing anatase-type titanium dioxide and manganese dioxide nanocomposite materials by surfactant-assisted electrodeposition. Background technique [0002] Manganese dioxide is cheap, easy to obtain, abundant in reserves, and environmentally friendly, and is widely used as an electrode material for supercapacitors, but MnO 2 When used as a supercapacitor electrode material, the internal resistance is large, the crystal grain is large, and the utilization rate is low in the electrode reaction process. How to overcome the inherent defects of electrode materials, improve the utilization rate in the electrode reaction process, and give full play to its advantages in supercapacitor electrode materials are the key issues in the current research on electrode materials. [0003] TiO 2 Due to its good chemical stability, high photo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/00C25B1/21B82Y40/00B82Y30/00B01J23/34
CPCC25B1/00C25B1/21B82Y30/00B82Y40/00B01J23/002B01J23/34B01J35/39
Inventor 徐旭耀周小松马琳许丽梅罗金周晓平张玲玲
Owner LINGNAN NORMAL UNIV
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