Novel crystal form multi-metal molybdate micro-nano-particles and preparing method thereof

A metal molybdate, micro-nano particle technology, applied in the chemical industry, can solve the problems of complex multi-metal molybdate micro-nano particle technology and other problems, and achieve the effects of short reaction time, simple process and simple follow-up treatment.

Inactive Publication Date: 2016-03-23
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the invention provides a kind of preparation polymetallic molybdate micro-nano particle and method thereof, described this preparation polymetallic molybdate micro-nano particle and method thereof have solved existing Complicated technical issues in the process of preparing polymetallic molybdate micro-nano particles

Method used

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  • Novel crystal form multi-metal molybdate micro-nano-particles and preparing method thereof
  • Novel crystal form multi-metal molybdate micro-nano-particles and preparing method thereof
  • Novel crystal form multi-metal molybdate micro-nano-particles and preparing method thereof

Examples

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Effect test

Embodiment 1

[0032] A kind of ultrasonic electrolysis using cationic membrane to prepare Na 2 Zn 5 (MoO 4 ) 6 Crystal method, the specific steps are as follows:

[0033] (1) With zinc sheet as anode, titanium mesh as cathode, 90ml of sodium molybdate aqueous solution with a concentration of 0.1mol / L as anolyte, and 90ml of hydrochloric acid with a concentration of 0.1mol / L as catholyte, in double In the chamber diaphragm electrolyzer, control current density 4A / dm 2 , temperature 55 ~ 65 ℃, electrolysis 20min under ultrasonic state.

[0034] (2) After electrolysis, take out the anolyte, wash it with deionized water and filter it to remove the remaining impurities, and dry the filtered product at 100°C for 2 hours. The heating rate of ℃ / min is increased to 450℃, and the high temperature is roasted for 1h, and then naturally cooled to room temperature after roasting, that is, pure Na 2 Zn 5 (MoO 4 ) 6 crystals.

[0035] The S-3400 scanning electron microscope produced by Japan's Hi...

Embodiment 2

[0038] A kind of ultrasonic electrolysis using cationic membrane to prepare Na 2 Zn 5 (MoO 4 ) 6 Crystal method, the specific steps are as follows:

[0039] (1) Use zinc sheet as anode, titanium mesh as cathode, 90ml of sodium molybdate aqueous solution with a concentration of 0.3mol / L as anolyte, and 90ml of hydrochloric acid with a concentration of 0.1mol / L as catholyte. In the chamber diaphragm electrolyzer, control current density 4A / dm 2 , temperature 55 ~ 65 ℃, electrolysis 20min under ultrasonic state.

[0040] (2) After electrolysis, take out the anolyte, wash it with deionized water and filter it to remove the remaining impurities, and dry the filtered product at 100°C for 2 hours. The heating rate of ℃ / min is increased to 450℃, and the high temperature is roasted for 1h, and then naturally cooled to room temperature after roasting, that is, pure Na 2 Zn 5 (MoO 4 ) 6 crystals.

[0041] The S-3400 scanning electron microscope produced by Japan's Hitachi (Hitach...

Embodiment 3

[0044] A method for preparing Na by ultrasonic electrolysis with cationic membrane 2 Zn 5 (MoO 4 ) 6 Crystal method, the specific steps are as follows:

[0045] (1) With zinc sheet as anode, titanium mesh as cathode, 90ml of sodium molybdate aqueous solution with a concentration of 0.5mol / L as anolyte, and 90ml of hydrochloric acid with a concentration of 0.1mol / L as catholyte, in double In the chamber diaphragm electrolyzer, control current density 4A / dm 2 , temperature 55 ~ 65 ℃, electrolysis 20min under ultrasonic state.

[0046] (2) After electrolysis, take out the anolyte, wash it with deionized water and filter it to remove the remaining impurities, and dry the filtered product at 100°C for 2 hours. The heating rate of ℃ / min is increased to 450℃, and the high temperature is roasted for 1h, and then naturally cooled to room temperature after roasting, that is, pure Na 2 Zn 5 (MoO 4 ) 6 crystals.

[0047] The S-3400 scanning electron microscope produced by Japan'...

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Abstract

The invention discloses novel crystal form multi-metal molybdate micro-nano-particles. The molecular formula of the novel crystal form multi-metal molybdate micro-nano-particles is Na2Zn5(MoO4)6. The invention also provides a preparing method of the novel crystal form multi-metal molybdate micro-nano-particles. According to the method, a zinc sheet is taken as an anode plate, a noble electrode is taken as the cathode, sodium molybdate aqueous solution is taken as anode liquor, hydrochloric acid is taken as catholyte, and ultrasonic electrolysis is conducted on the sodium molybdate aqueous solution with the constant-current-density electrolysis method in a double-chamber electrolytic cell with a positive ion film as the partition film; after electrolysis, products obtained in an anode chamber are cleaned and filtered with deionized water, dried, calcinated and cooled naturally in sequence to obtain pure Na2Zn5(MoO4)6 crystals. Most Na+ ions are transferred into a cathode chamber by means of the positive ion film, ions in the solution move at a higher speed under ultrasonic electrolysis, effective collision frequency of ions during crystal formation is increased, and pure Na2Zn5(MoO4)6 crystals with different shapes can be obtained.

Description

technical field [0001] The invention relates to a method for preparing an inorganic material in the field of chemical engineering, in particular to a method for preparing polymetallic molybdate micro-nano particles and the method thereof. Background technique [0002] At present, in the field of inorganic chemistry, designing and synthesizing new substances and seeking the diversity of material structures are still one of the directions and driving forces for the development of inorganic chemistry. Now, in the process of synthesizing new compounds, people pay more attention to the relationship between the structure and properties of the synthesized substances, and people hope to qualitatively design and synthesize new compounds according to the required materials with specific functions. compound. [0003] Due to the incomparable structural diversity and interesting properties of polymetallic molybdates, the research on polymetallic molybdates still maintains strong interes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B7/12C09K11/68
CPCC30B29/22C09K11/68C30B7/12
Inventor 张全生贾李李程素贞尹佳佳张伟雷天辉张建辉马可黄海军
Owner SHANGHAI INST OF TECH
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