Application of a kind of tio2/wo3/g-c3n4 fully mesoporous nanofibers in high-efficiency photocatalysts

A technology of nanofibers and photocatalysts, applied in the direction of physical/chemical process catalysts, hydrogen production, chemical instruments and methods, etc., to achieve the effect of strengthening catalytic performance

Active Publication Date: 2019-02-01
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 、WO 3 and g-C 3 N 4 Both are representative semiconductor photocatalyst materials, and there have been reports in the literature that they are used alone or as two kinds of composite semiconductor photocatalysts, but the ternary system of TiO 2 / WO 3 / g -C 3 N 4 Photocatalyst materials have not been reported

Method used

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  • Application of a kind of tio2/wo3/g-c3n4 fully mesoporous nanofibers in high-efficiency photocatalysts
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  • Application of a kind of tio2/wo3/g-c3n4 fully mesoporous nanofibers in high-efficiency photocatalysts

Examples

Experimental program
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Embodiment 1

[0067] Put urea in an alumina crucible, then cover the mouth of the crucible with a layer of carbon paper, then place it in a muffle sintering furnace, set the process program at 1°C / min and heat to 500°C for 4 hours, cool the furnace to room temperature, Take it out and grind it to powder to make g-C 3 N 4 Nano flakes, save for future use.

[0068] Take 0.7g PVP, 0.5g WCl 6 Dissolve in a mixed solvent composed of 7ml ethanol and 3ml acetic acid, and obtain uniform PVP / WCl after magnetic stirring for 5 hours 6 solution, and then slowly drop 3g of TBOT, and continue to stir vigorously for 2h to obtain PVP / WCl 6 / TBOT solution, and finally add 1.0g foaming agent DIPA to obtain a precursor spinning solution containing foaming agent. Then, the precursor spinning solution was spun under the electrospinning conditions of voltage 15kV and distance 20cm to obtain organic precursor fibers. After the organic precursor fibers were dried in a constant temperature oven at 60°C, solid o...

Embodiment 2

[0079] The only difference between embodiment 2 and embodiment 1 is that the calcination temperature of urea is 450°C.

Embodiment 3

[0080] The only difference between embodiment 3 and embodiment 1 is that the calcination temperature of urea is 460°C.

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Abstract

The invention relates to a use of TiO<2>/WO<3>/g-C<3>N<4> thoroughly mesoporenanofiber in high efficiency photocatalyst. In the TiO<2>/WO<3>/g-C<3>N<4> thoroughly mesoporenanofiber, TiO<2>/WO<3> is present in the form of nanofibers, the g-C<3>N<4> is supported by the TiO<2>/WO<3> nanofibers, wherein the TiO<2>/WO<3> nanofibers are in a porous structure including mesopores. The TiO<2>/ WO<3>/g-C<3>N<4> thoroughly mesoporenanofiber of the invention has a wide light responsive wavelength, good stability and high efficiency when used in the high efficiency photocatalyst.

Description

technical field [0001] The present invention relates to a kind of TiO 2 / WO 3 / g -C 3 N 4 Application of fully mesoporous nanofibers, especially involving a TiO 2 / WO 3 / g -C 3 N 4 Application of fully mesoporous nanofibers in highly efficient photocatalysts. [0002] The meaning of following expression among the present invention is: [0003] PVP: polyvinylpyrrolidone [0004] wCl 6 : Tungsten hexachloride [0005] TBOT: Butyl titanate Background technique [0006] With the rapid development of modern industry, the energy crisis and environmental pollution are becoming more and more serious. The development and utilization of clean and efficient energy has become a top priority for all countries. As a renewable and clean energy source, solar energy is inexhaustible. How to effectively utilize solar energy has become a hot research topic at present. [0007] Photocatalytic technology has the advantages of directly absorbing solar energy to drive reactions at roo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24B01J35/10C01B3/04
CPCY02E60/36
Inventor 杨为佑侯慧林
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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