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Tungsten-molybdenum oxide capable of being applied to environmental adsorption and preparation method of tungsten-molybdenum oxide

An oxide, tungsten and molybdenum technology, applied in the field of micro-nano materials, can solve the problems of poor dye wastewater treatment effect and weak adsorption, and achieve the effects of reducing environmental burden, good adsorption performance and strong adsorption.

Pending Publication Date: 2022-05-13
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when tungsten and molybdenum oxides are used in the textile printing and dyeing industry and environmental protection, they still have the disadvantages of weak adsorption and poor dye wastewater treatment effect.

Method used

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  • Tungsten-molybdenum oxide capable of being applied to environmental adsorption and preparation method of tungsten-molybdenum oxide
  • Tungsten-molybdenum oxide capable of being applied to environmental adsorption and preparation method of tungsten-molybdenum oxide
  • Tungsten-molybdenum oxide capable of being applied to environmental adsorption and preparation method of tungsten-molybdenum oxide

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Embodiment 1

[0043] This embodiment provides a preparation method of tungsten and molybdenum oxide. Specifically include:

[0044]Weigh 8g of D201 resin, finish the pretreatment by alkali washing and pickling, prepare a mixed solution of sodium tungstate and sodium molybdate with concentrations of 0.3019mol / L, adjust the pH to 3.5 with 1:1 hydrochloric acid, and let it stand for 2 Hours, the resin was added to the 50mL mixed solution, and magnetic stirring was added for 4 hours. Dry the resin that has been adsorbed, take 0.5 g of the dried resin in a crucible, and place it in a tube furnace for calcination. The calcination temperature is 600 ° C, the calcination time is 2 hours, the calcination atmosphere is argon, and the argon flow rate is 20 ~50 mL / min; drying followed by calcination.

[0045] This embodiment further provides a tungsten molybdenum oxide (WO) prepared by the above preparation method 2 and MoO 2 ). figure 1 For the XRD pattern of the tungsten-molybdenum oxide that th...

Embodiment 2

[0047] This embodiment provides a preparation method of tungsten and molybdenum oxide. Specifically include:

[0048] Weigh 8g of D201 resin, finish the pretreatment by alkali washing and pickling, prepare a mixed solution of sodium tungstate and sodium molybdate with concentrations of 0.3019mol / L, adjust the pH to 3.5 with 1:1 hydrochloric acid, and let it stand for 2 Hours, the resin was added to the 50mL mixed solution, and magnetic stirring was added for 4 hours. Dry the adsorbed resin, take 0.5g of the dried resin in a crucible, place it in a tube furnace for calcination, the calcination temperature is 600°C, the calcination time is 2 hours, the calcination atmosphere is nitrogen, and the nitrogen flow rate is 20-50mL / min; drying after calcination.

[0049] This embodiment further provides a tungsten molybdenum oxide (WO) prepared by the above preparation method 2 and MoO 2 ). figure 2 For the XRD pattern of the tungsten-molybdenum oxide that this embodiment makes,...

Embodiment 3

[0051] This embodiment provides a preparation method of tungsten and molybdenum oxide. Specifically include:

[0052] Weigh 8g of D201 resin, finish the pretreatment by alkali washing and pickling, prepare a mixed solution of sodium tungstate and sodium molybdate with concentrations of 0.3019mol / L, adjust the pH to 3.5 with 1:1 hydrochloric acid, and let it stand for 2 Hours, the resin was added to the 50mL mixed solution, and magnetic stirring was added for 4 hours. Dry the adsorbed resin, take 0.5g of the dried resin in a crucible, place it in a tube furnace for calcination, the calcination temperature is 400°C, the calcination time is 2 hours, the calcination atmosphere is nitrogen, and the nitrogen flow rate is 20-50mL / min; drying after calcination.

[0053] This embodiment further provides a tungsten molybdenum oxide (WO) prepared by the above preparation method 2 and MoO 2 ).

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Abstract

The invention relates to the technical field of micro-nano materials, in particular to a tungsten-molybdenum oxide capable of being applied to environmental adsorption and a preparation method of the tungsten-molybdenum oxide. According to the method, the tungsten element and the molybdenum element existing in the ion form in a resin adsorption solution are adopted, the adsorbed resin is calcined in circulating gas, the calcination temperature is 400-600 DEG C, and a mixture of tungsten oxide and molybdenum oxide is prepared. The method has the advantages of being short in process, simple, convenient, feasible, green, environmentally friendly and the like, the obtained tungsten-molybdenum oxide is good in adsorption performance and can be widely applied to the fields of environmental pollutant adsorption and dye adsorption, resource circulation can be achieved in the preparation process, the environmental burden can be reduced, and a new thought is provided for recycling of tungsten-molybdenum waste.

Description

technical field [0001] The invention relates to the technical field of micro-nano materials, in particular to a tungsten-molybdenum oxide applicable to environmental adsorption and a preparation method thereof. Background technique [0002] Tungsten molybdenum has the characteristics of good thermal conductivity, electrical conductivity, low thermal expansion coefficient, high temperature strength, low vapor pressure and wear resistance, and has become an important component of electronic power equipment manufacturing industry, metal material processing industry, glass manufacturing industry, high temperature furnace structural parts manufacturing, aviation industry, etc. Heavy materials for aerospace and defense industry applications. With the sharp increase in the amount of tungsten and molybdenum waste, the recycling of secondary resources is particularly important. At this stage, there are many recovery methods for tungsten and molybdenum. When extracting tungsten from ...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/30C02F1/28C02F101/30
CPCB01J20/06B01J20/3078C02F1/281C02F2101/308Y02W10/37
Inventor 马立文刘亚男刘阳思席晓丽聂祚仁
Owner BEIJING UNIV OF TECH