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Preparation method of PTH-doped Mo-Ti-carbon nanotube photocatalyst

A carbon nanotube, photocatalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problem of short cycle life, low photoelectric conversion efficiency, problems such as poor mechanical properties, to achieve the effects of long cycle life, high photoelectric conversion efficiency, and good mechanical properties

Active Publication Date: 2019-07-19
HEZE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Photocatalyst is a general term for chemical substances that can play a catalytic role under the excitation of photons. The common ones are titanium dioxide (TiO 2 ), zinc oxide (ZnO), tin oxide (SnO 2 ) 、 Zirconia (ZrO 2 ), cadmium sulfide (CdS) and other oxides and sulfide semiconductors, but they have the problems of low light utilization rate, low photoelectric conversion efficiency, short cycle life, and poor mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of PTH doped Mo-Ti-carbon nanotube photocatalyst, the steps are as follows:

[0019] (1) Take 10ml of methanol, 10ml of dimethyl sulfoxide and 20ml of N-methylpyrrolidone to make a microemulsion.

[0020] (2) Put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, add 5g of polythiophene (PTH), stir to dissolve it, heat up to 45°C and add 1g of MoO 3 , 1g of carbon nanotubes, 1g of titanium dioxide, after the sample is completely dissolved, add 1mL of 2% ammonia solution dropwise, continue stirring for 30 min, ultrasonically dissolve in an ultrasonic cleaner for 20 min, and the ultrasonic power is 500 W.

[0021] (3) Put the solution prepared in step (2) into a 100 mL steel cup made of polytetrafluoroethylene with a cover for hydrothermal reaction. The reaction was incubated under the conditions for 36 h.

[0022] (4) Filter the above product, collect the filter cake, wash it with deioni...

Embodiment 2

[0024] A preparation method of PTH doped Mo-Ti-carbon nanotube photocatalyst, the steps are as follows:

[0025] (1) Take 10ml of methanol, 10ml of dimethyl sulfoxide and 20ml of N-methylpyrrolidone to make a microemulsion.

[0026] (2) Put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, add 5g of polythiophene (PTH), stir to dissolve it, heat up to 45°C and add 1g of MoO 3 , 1g of carbon nanotubes, 1g of titanium dioxide, after the sample is completely dissolved, add 1mL of 2% ammonia solution dropwise, continue to stir for 30 min, ultrasonically dissolve in an ultrasonic cleaner for 25 min, and the ultrasonic power is 100 W.

[0027] (3) Put the solution prepared in step (2) into a 100 mL steel cup made of polytetrafluoroethylene with a cover for hydrothermal reaction. The reaction was incubated under the conditions for 70 h.

[0028] (4) Filter the above product, collect the filter cake, wash it with deioniz...

Embodiment 3

[0030] A preparation method of PTH doped Mo-Ti-carbon nanotube photocatalyst, the steps are as follows:

[0031] (1) Take 10ml of methanol, 10ml of dimethyl sulfoxide and 20ml of N-methylpyrrolidone to make a microemulsion.

[0032] (2) Put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, add 5g of polythiophene (PTH), stir to dissolve it, heat up to 45°C and add 1g of MoO 3 , 1g of carbon nanotubes, 1g of titanium dioxide, after the sample is completely dissolved, add 1mL of 2% ammonia solution dropwise, continue stirring for 30 min, ultrasonically dissolve in an ultrasonic cleaner for 15 min, and the ultrasonic power is 800 W.

[0033] (3) Put the solution prepared in step (2) into a 100 mL steel cup made of polytetrafluoroethylene with a cover for hydrothermal reaction. The reaction was incubated under the conditions for 12 h.

[0034] (4) Filter the above product, collect the filter cake, wash it with deioni...

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Abstract

The invention relates to a photocatalyst, in particular to a preparation method of a PTH-doped Mo-Ti-carbon nanotube photocatalyst, which comprises the following steps: uniformly mixing methanol, dimethyl sulfoxide and N-methyl pyrrolidone to prepare a microemulsion; adding polythiophene into the microemulsion mixed system under a constant temperature condition, conducting dissolving and heating,adding MoO3, carbon nanotubes and TiO2, dropwise adding an ammonia water solution, conducting uniform stirring, and carrying out ultrasonic treatment for 15-25 min; carrying out hydrothermal reactionon the mixed solution at 120-250 DEG C for 12-70 hours; filtering the product, conducting washing, soaking the washed product in isopropanol after washing is finished, and finally drying the product at 50-70 DEG C for 3-5 hours to obtain the PTH-doped Mo-Ti-carbon nanotube photocatalyst. The PTH-doped Mo-Ti-carbon nanotube photocatalyst prepared by the preparation method disclosed by the inventionis high in light utilization rate, high in photoelectric conversion efficiency, long in cycle service life and good in mechanical property.

Description

technical field [0001] The invention relates to a photocatalyst, in particular to a preparation method of a PTH-doped Mo-Ti-carbon nanotube photocatalyst. Background technique [0002] Photocatalyst is a general term for chemical substances that can play a catalytic role under the excitation of photons. The common ones are titanium dioxide (TiO 2 ), zinc oxide (ZnO), tin oxide (SnO 2 ) 、 Zirconia (ZrO 2 ), cadmium sulfide (CdS) and other oxides and sulfide semiconductors, but they have the problems of low light utilization rate, low photoelectric conversion efficiency, short cycle life, and poor mechanical properties. Contents of the invention [0003] The invention overcomes the deficiencies in the prior art and provides a preparation method of PTH doped Mo-Ti-carbon nanotube photocatalyst. [0004] In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions: a preparation method of PT...

Claims

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Application Information

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IPC IPC(8): B01J31/38
CPCB01J31/38B01J35/39
Inventor 陈美凤吕惠萍马心英马远忠
Owner HEZE UNIV
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