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Preparing method for nanowire iron phthalocyanine/carbon nanofiber heterojunction composite material

A technology of carbon nanofibers and composite materials, applied in the field of composite materials, can solve problems such as low product yield, difficulty in forming heterojunctions, complexity, etc., and achieve the effect of achieving a firm combination

Inactive Publication Date: 2016-05-04
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method is usually relatively complicated and the product yield is low. It is mainly manifested in the loose contact between metal phthalocyanine and carbon fiber, or even physical attachment to carbon fiber, which makes it difficult to form a good heterojunction, which is not conducive to the capture of photogenerated electrons. with transmission

Method used

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  • Preparing method for nanowire iron phthalocyanine/carbon nanofiber heterojunction composite material
  • Preparing method for nanowire iron phthalocyanine/carbon nanofiber heterojunction composite material
  • Preparing method for nanowire iron phthalocyanine/carbon nanofiber heterojunction composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Preparation of iron-containing carbon nanofibers

[0027] 1.5g polyacrylonitrile (PAN) and 0.032g FeCl 2 4H 2 O was dissolved in 12mL N,N-dimethylformamide (DMF), stirred magnetically for 24 hours, stirred until uniform, transparent and viscous, then transferred to a 10ml syringe, and connected to a metal joint through a catheter, using flow The controller controls the mixed solution to keep the flow rate at 0.1-10 sccm; use a flat electrode, a parallel metal plate electrode or a rotatable roller electrode as the receiving electrode, connect the two poles of the high-voltage electrostatic device to the metal joint and the receiving electrode respectively, and pass through the high-voltage electrostatic device Provide a high voltage of 10kV to start spinning to obtain organic nanofibers containing iron salts;

[0028] Put the organic nanofibers containing iron salts in a tubular reactor for oxidation and carbonization: adjust the temperature of the tubular reactor,...

Embodiment 2

[0032] (1) Preparation of iron-containing carbon nanofibers

[0033] 1.5g polyacrylonitrile (PAN) and 0.015gFeCl 2 4H 2 O was dissolved in N,N-dimethylformamide (DMF), and the mass percentage of polyacrylonitrile in DMF was controlled to be 11.7%, magnetically stirred for 21 hours, and then transferred to a 10ml syringe after stirring until uniform, transparent and viscous. Connect it to a metal joint through a conduit, use a flow controller to control the mixed solution to maintain the flow rate at 5 sccm; use a flat electrode, a parallel metal plate electrode or a rotatable roller electrode as the receiving electrode, and connect the two poles of the high voltage electrostatic device respectively On the metal joint and the receiving electrode, a high voltage of 10kV is provided through a high-voltage electrostatic device to start spinning to obtain organic nanofibers containing iron salts;

[0034] Put the organic nanofibers containing iron salts in a tubular reactor for o...

Embodiment 3

[0038] (1) Preparation of iron-containing carbon nanofibers

[0039] 1.5g polyacrylonitrile (PAN) and 0.045gFeCl 2 4H 2 O was dissolved in N,N-dimethylformamide (DMF), and the mass percentage of polyacrylonitrile in DMF was controlled to be 11.5%, magnetically stirred for 23 hours, stirred until uniform, transparent and viscous, and then transferred to a 10ml syringe. Connect it to a metal joint through a conduit, use a flow controller to control the mixed solution to maintain the flow rate at 6 sccm; use a flat electrode, a parallel metal plate electrode or a rotatable roller electrode as a receiving electrode, and connect the two poles of the high voltage electrostatic device respectively On the metal joint and the receiving electrode, a high voltage of 10kV is provided through a high-voltage electrostatic device to start spinning to obtain organic nanofibers containing iron salts;

[0040] Put the organic nanofibers containing iron salts in a tubular reactor for oxidation...

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Abstract

The invention relates to a preparing method for a nanowire iron phthalocyanine / carbon nanofiber heterojunction composite material, and belongs to the technical field of composite materials. The preparing method includes iron-carbon nanofiber preparation and composite material preparation, composite material preparation includes the following steps that iron-containing carbon nanofibers, 4-nitrophthalonitrile and ammonium molybdate are poured into a reaction kettle together, ethanediol is added into the reaction kettle, the reaction kettle is sealed, placed in a drying oven and heated to be treated for 7-9 h, the reaction kettle is taken out and naturally cooled to room temperature, and a reaction product at the bottom of the kettle is taken out, washed, placed in a vacuum drying box to be dried for 4-6 h to obtain the composite material. The preparing method is simple in process, efficient, easy to operate, low in price and environmentally friendly and achieves large-scale production easily.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a nanowire iron phthalocyanine / carbon nanofiber heterojunction composite material, in particular to a preparation method of the nanowire iron phthalocyanine / carbon nanofiber heterojunction composite material. Background technique [0002] Metal phthalocyanine is a kind of macrocyclic complex with ring holes that can accommodate many transition metals such as iron, cobalt, nickel, etc. that match its diameter. The phthalocyanine ring itself is a large two-dimensional conjugated system with 18π electrons. , as a macrocyclic complex, has attracted extensive attention from researchers due to its strong absorption peak in the long visible light region greater than 400nm, and is considered to be one of the most promising visible light catalysts, so that it can Use solar energy to deal with sewage problems. Photocatalysis mainly depends on the separation effect of photogenera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J35/06
CPCB01J31/183B01J31/22B01J35/39B01J35/58
Inventor 母静波郭增彩
Owner HEBEI UNIV OF ENG
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