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Preparation method of poly-3-hexylthiophene/biomass carbon/SnO2-x nano-composite photocatalytic material

A technology of photocatalytic materials and biomass carbon, applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of obvious material agglomeration effect and insufficient reaction raw materials , cumbersome steps and other problems, to achieve the effect of simple and efficient process, overcome the mismatch of energy level structure and low preparation temperature

Inactive Publication Date: 2019-01-04
PINGDINGSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Monovalent SnO 2 The large band gap results in photocatalytic reactions that can only be carried out by absorbing ultraviolet light, but the energy of ultraviolet light accounts for less than 5% of the total energy of sunlight
These preparation methods have their unique advantages, but the disadvantages are that the reaction raw materials are not environmentally friendly, the steps are cumbersome, and the agglomeration effect of the prepared materials is obvious, etc.

Method used

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  • Preparation method of poly-3-hexylthiophene/biomass carbon/SnO2-x nano-composite photocatalytic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Heat the biomass waste coconut shell from room temperature to 100 °C for 10 hours at a heating rate of 2 °C / min in a nitrogen atmosphere, and cool to room temperature after the reaction to obtain a biomass carbon skeleton;

[0033] 2) get 1mmol analytically pure stannous tartrate (C 4 h 4 o 6 Sn) and 0.2mmol of tartaric acid (C 4 h 6 o 6 ) was fully dissolved in 5 mL of absolute ethanol, and then 2 mmol of dodecyl ethoxy sulfobetaine and 10 mL of deionized water were added successively. The magnetic stirring device continuously magnetically stirs it at a temperature of -20°C until it is completely dissolved to obtain solution A;

[0034] 3) Take 0.5g of the ground biomass carbon skeleton and add it to solution A, and use a constant temperature magnetic stirring device to carry out continuous stirring at -20°C during the whole process in an ice-salt bath of sodium chloride and crushed ice. Stir magnetically until the mixture is evenly mixed to obtain the mixed s...

Embodiment 2

[0039] 1) Under an argon atmosphere, the biomass waste leaves were heated from room temperature to 180 °C at a heating rate of 7 °C / min and kept for 6 hours, and the reaction was completed and cooled to room temperature to obtain a biomass carbon skeleton;

[0040] 2) get 1mmol analytically pure stannous tartrate (C 4 h 4 o 6 Sn) and 2mmol of tartaric acid (C 4 h 6 o 6) was fully dissolved in 9mL of absolute ethanol, then 8mmol of dodecyl ethoxy sulfobetaine and 15mL of deionized water were added successively, and the whole process was carried out at a constant temperature in an ice-salt bath of sodium chloride and crushed ice. The magnetic stirring device continuously magnetically stirs it at the temperature of -15°C until it is completely dissolved to obtain solution A;

[0041] 3) Take 2g of the ground biomass carbon skeleton and add it to solution A. During the whole process, use a constant temperature magnetic stirring device to perform continuous magnetic force on i...

Embodiment 3

[0047] 1) Under a nitrogen atmosphere, the fallen leaves of the biomass waste were heated from room temperature to 300 °C at a heating rate of 8 °C / min and kept for 1 hour, and the reaction was completed and cooled to room temperature to obtain a biomass carbon skeleton;

[0048] 2) get 1mmol analytically pure stannous tartrate (C 4 h 4 o 6 Sn) and 2.8mmol of tartaric acid (C 4 h 6 o 6 ) was fully dissolved in 15mL of absolute ethanol, then 12mmol of dodecylethoxy sulfobetaine and 20mL of deionized water were added successively, and the whole process was kept at constant temperature in an ice-salt bath of sodium chloride and crushed ice. The magnetic stirring device continuously magnetically stirs it at a temperature of -10°C until it is completely dissolved to obtain solution A;

[0049] 3) Take 6g of the ground biomass carbon skeleton and add it to solution A. During the whole process, use a constant temperature magnetic stirring device to perform continuous magnetic fo...

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Abstract

The invention discloses a preparation method of a poly-3-hexylthiophene / biomass carbon / SnO2-x nano-composite photocatalytic material. SnO2-x and biomass carbon semiconductor heterojunctions are loadedon poly-3-hexylthiophene (P3HT) in a chemical bond complexing mode to obtain the nano-composite photocatalytic material. Photo-induced electron-hole recombination in photocatalytic reaction is sufficiently inhibited by the aid of visible-light photocatalytic oxidation-reduction properties of SnO2-x, excellent electrical conductivity of the biomass carbon, electrical conductivity of the poly-3-hexylthiophene (P3HT) and a heterojunction structure with three chemically bonding components, so that the performances of photocatalytic oxidation-reduction pollutant degradation and hydrogen productionfrom photocatalytic water splitting can be improved. Besides, the problem of difficulty in recovery of powder materials can be effectively avoided by the aid of easiness in shaping of the poly-3-hexylthiophene (P3HT), so that the poly-3-hexylthiophene (P3HT) / biomass carbon / SnO2-x nano-composite photocatalytic material prepared by the preparation method is a recyclable novel environment-friendly photocatalytic material.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite photocatalytic material, in particular to a poly-3‐hexylthiophene / biomass carbon / SnO 2‐x Preparation method of nanocomposite photocatalytic material. Background technique [0002] With the increasingly serious problem of environmental pollution, the application of semiconductor photocatalytic technology in the field of sewage treatment has received extensive attention. Defect-rich tin oxide (SnO 2-x ) have great potential in the field of photocatalysis due to their excellent visible-light photocatalytic responsiveness. However, a single-component defect-rich tin oxide (SnO 2-x ) has the disadvantages of narrow photoresponse range, low solar energy utilization rate, and low quantum efficiency, which seriously limit its practical application. Biomass carbon and poly-3-hexylthiophene (P3HT) materials are nano-light materials with their own special microstructure, and have broad applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J35/02C02F1/30C02F1/72C02F101/30C02F101/34C02F101/36C02F101/38B01J35/00
CPCC02F1/30C02F1/725B01J31/26C02F2101/308C02F2101/34C02F2101/36C02F2101/38C02F2305/10B01J35/40B01J35/39
Inventor 杨柳青
Owner PINGDINGSHAN UNIVERSITY
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