Preparation method of poly(3-hexylthiophene) (P3HT)/metal-modified Sn3O4 nano composite photocatalytic material

A photocatalytic material, hexylthiophene technology, is applied in the field of preparation of nanocomposite photocatalytic materials, which can solve the problems of obvious hard agglomeration effect of samples, easy falling off of supported metals, complicated preparation process, etc. The effect of narrow diameter distribution and low preparation temperature

Inactive Publication Date: 2018-12-28
PINGDINGSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above preparation methods have their unique advantages, but most of the disadvantages lie in the complex preparation process, the need for multi-step reactions, the obvious hard agglomeration effect of the sample, and the easy fall-off of the loaded metal, etc.

Method used

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  • Preparation method of poly(3-hexylthiophene) (P3HT)/metal-modified Sn3O4 nano composite photocatalytic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) get 1mmol analytically pure stannous octoate (C 16 h 30 o 4 Sn) and 0.6mmol of acetic acid (CH 3 COOH) was fully dissolved in 2mL of absolute ethanol, then sequentially added 4mmol of sodium sorbate, 0.5mmol of phytic acid and 10mL of deionized water in an ice-salt bath of sodium chloride and crushed ice using a constant temperature magnetic stirring device Under the temperature condition of -20°C, the solution A is obtained by continuous magnetic stirring and mixing;

[0032] 2) Take 2 mmol of silver nitrate (AgNO 3 ), 7mmol of copper nitrate (Cu(NO 3 ) 2 ) and 0.1 mmol of acetic acid (CH 3 COOH) was fully dissolved in 7mL of deionized water. During the whole process, a constant temperature magnetic stirring device was used in an ice-salt bath of sodium chloride and crushed ice to continuously magnetically stir it at a temperature of -20°C to obtain solution B;

[0033] 3) Add solution B dropwise to solution A at a rate of 30 drops / min. The whole process is c...

Embodiment 2

[0039] 1) get 1mmol analytically pure stannous octoate (C 16 h 30 o 4 Sn) and 3 mmol of acetic acid (CH 3 COOH) was fully dissolved in 11mL of absolute ethanol, and then 12mmol of sodium sorbate, 3mmol of phytic acid and 17mL of deionized water were sequentially added in an ice-salt bath of sodium chloride and crushed ice using a constant temperature magnetic stirring device. Under the temperature condition of -15°C, carry out continuous magnetic stirring and mixing to obtain solution A;

[0040] 2) Take 1mmol of chloroauric acid (HAuCl 4 ), 6mmol of copper nitrate (Cu(NO 3 ) 2 ) and 5mmol of acetic acid (CH 3COOH) was fully dissolved in 12mL of deionized water, and a constant temperature magnetic stirring device was used to continuously magnetically stir it in an ice-salt bath of sodium chloride and crushed ice at a temperature of -15°C during the whole process to obtain solution B;

[0041] 3) Add solution B dropwise to solution A at a rate of 40 drops / min. The whole ...

Embodiment 3

[0048] 1) get 1mmol analytically pure stannous octoate (C 16 h 30 o 4 Sn) and 4.7mmol of acetic acid (CH 3 COOH) was fully dissolved in 17mL of absolute ethanol, then sequentially added 18mmol of sodium sorbate, 6mmol of phytic acid and 26mL of deionized water in an ice-salt bath of sodium chloride and crushed ice using a constant temperature magnetic stirring device Under the temperature condition of -10°C, carry out continuous magnetic stirring and mixing to obtain solution A;

[0049] 2) get 0.1mmol analytically pure chloroplatinic acid (H 2 PtCl 6 ), 1mmol of chloroauric acid (HAuCl 4 ), 7mmol of silver nitrate (AgNO 3 ) and 6mmol of acetic acid (CH 3 COOH) was fully dissolved in 15mL of deionized water, and a constant temperature magnetic stirring device was used to continuously magnetically stir it in an ice-salt bath of sodium chloride and crushed ice at a temperature of -10°C during the whole process to obtain solution B;

[0050] 3) Add solution B dropwise to ...

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Abstract

The invention discloses a preparation method of a poly(3-hexylthiophene) (P3HT) / metal-modified Sn3O4 nano composite photocatalytic material. According to the method, a composite photocatalyst materialis obtained by loading and dispersing a metal-modified Sn3O4 semiconductor heterojunction in poly(3-hexylthiophene) in the form of chemical bond complexation; wherein the metal-modified Sn3O4 is prepared by loading Sn3O4 with metal nanoparticles of a one-component mental or a multi-component alloy with a plasmon resonance effect such as Pt, Au, Ag, Cu and the like, respectively. According to theinvention, the visible light photocatalytic redox properties of Sn3O4, the plasmon resonance effect of metal nanoparticles, the electrical conductivity of poly(3-hexylthiophene) and a heterojunction structure with chemical bonding among the three components are utilized to fully enhance the photo-generated electrons-hole separation rate of the nano composite photocatalytic material in a photocatalytic reaction, so that the improvements on the performance of photocatalytic redox degradation of pollutants and photocatalytic decomposition of hydrogen produced by water of the nano composite photocatalytic material are facilitated. At the same time, the characteristics of being easy to be molded of poly(3-hexylthiophene) can effectively avoid the problem of difficulty in recovery of powder materials.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite photocatalytic material, in particular to a poly 3-hexylthiophene (P3HT) / metal modified Sn 3 o 4 Preparation method of nanocomposite photocatalytic material. Background technique [0002] The development of photocatalyst materials is of great significance for alleviating my country's environmental pollution and energy shortage, accelerating the realization of green development goals and further enhancing the international competitiveness in the field of clean energy preparation technology. In the field of photocatalytic degradation of organic matter and photocatalytic water splitting to produce hydrogen, metal-supported semiconductor photocatalytic materials have been widely studied due to their high catalytic activity and strong catalyst stability. [0003] Tin oxide is an important n-type wide-bandgap semiconductor, which has excellent photoelectric properties, gas-sensing properties,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J35/02B01D53/86B01D53/72
CPCB01J35/004B01D53/8668B01D2257/70B01D2259/802B01J31/26B01J35/023
Inventor 杨柳青白青贺国旭李青彬赵干卿
Owner PINGDINGSHAN UNIVERSITY
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