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P-6 type basic yttrium carbonate/carbon composite material, and preparation method and application thereof

A technology of carbon composite materials and composite materials, applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., can solve the problems of inability to realize large-scale production and practical application, low crystallinity of products, small specific surface area, etc. problem, to achieve the effect of simple and efficient synthesis method, low preparation conditions and good repeatability

Active Publication Date: 2019-10-22
JIANGXI NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low crystallinity, small specific surface area, and poor adsorption performance of the synthesized products, large-scale production and practical application cannot be realized.

Method used

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  • P-6 type basic yttrium carbonate/carbon composite material, and preparation method and application thereof
  • P-6 type basic yttrium carbonate/carbon composite material, and preparation method and application thereof
  • P-6 type basic yttrium carbonate/carbon composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of yttrium-based coordination polymer: 0.5mmol Y(NO 3 ) 3 ·6H 2 O and 1.5mmol oxalic acid were dissolved in 40ml of DMF solvent, and reacted in a household microwave reaction device for 15min with a power of 240W;

[0023] (2) Treatment of the yttrium-based coordination polymer: the yttrium-based coordination polymer obtained by the microwave reaction was alternately washed with distilled water and ethanol, and dried in a vacuum oven at 60°C;

[0024] (3) Preloading of the yttrium-based coordination polymer: the dried yttrium-based coordination polymer is packed into Mo for preloading, and the loading pressure is 10MPa;

[0025] (4) High-temperature and high-pressure reaction: The pre-pressed yttrium-based coordination polymer is reacted in a domestic hinged 1400-ton six-sided top press, and the pressure is first raised to 3GPa at a rate of 0.3GPa / min, and the pressure is stabilized Then, raise the temperature to 1000°C at a rate of 100°C / min, keep it...

Embodiment 2

[0028] (1) Preparation of yttrium-based coordination polymer: 0.1mmol Y(NO 3 ) 3 ·6H 2 O and 0.3 mmol pimelic acid were dissolved in 40 ml DMF and H 2 In a mixed solvent of O, react in a household microwave reaction device for 20min with a power of 240W;

[0029] (2) Treatment of the yttrium-based coordination polymer: the yttrium-based coordination polymer obtained by the microwave reaction was alternately washed with distilled water and ethanol, and dried in a vacuum oven at 60°C;

[0030] (3) Preloading of the yttrium-based coordination polymer: the dried yttrium-based coordination polymer is packed into Mo for preloading, and the loading pressure is 5MPa;

[0031] (4) High-temperature and high-pressure reaction: The pre-pressed yttrium-based coordination polymer is reacted in a domestic hinged 1400-ton six-sided top press, and the pressure is first raised to 5GPa at a rate of 0.5GPa / min, and the pressure is stabilized Then, raise the temperature to 400°C at a rate of 5...

Embodiment 3

[0034] (1) Preparation of yttrium-based coordination polymer: 0.5mmol Y(NO 3 ) 3 ·6H 2 O and 1.5mmol oxalic acid were dissolved in 40ml of DMF solvent, and reacted in a household microwave reaction device for 15min with a power of 240W;

[0035] (2) Treatment of the yttrium-based coordination polymer: the yttrium-based coordination polymer obtained by the microwave reaction was alternately washed with distilled water and ethanol, and dried in a vacuum oven at 60°C;

[0036] (3) Preloading of the yttrium-based coordination polymer: the dried yttrium-based coordination polymer is packed into Mo for preloading, and the loading pressure is 20MPa;

[0037] (4) High-temperature and high-pressure reaction: The pre-pressed yttrium-based coordination polymer is reacted in a domestic hinged 1400-ton six-sided top press, and the pressure is first raised to 3GPa at a rate of 0.3GPa / min, and the pressure is stabilized Then, raise the temperature to 400°C at a rate of 100°C / min, keep it ...

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Abstract

The invention provides a P-6 type basic yttrium carbonate / carbon composite material, and a preparation method and an application thereof. The chemical formula of the composite material is Y(OH)CO3 / C,belongs to a hexagonal crystal system, is a P-6 space group, and has the following cell parameters: the composite material is a 300-500 nm nanosphere, and carbon accounts for 35-45% of the total massof the material. The preparation method has the advantages of good repeatability, low preparation conditions, and realization of mass production of the P-6 type basic yttrium carbonate / carbon composite material. The composite material can be used in the fields of water quality monitoring and water purification.

Description

technical field [0001] The invention relates to the technical field of preparation of rare earth compounds, in particular to a P-6 type basic yttrium carbonate / carbon composite material and a preparation method and application thereof. Background technique [0002] Rare earth elements have entered many aspects of modern life. From gasoline, mobile phones, speakers, to energy production, rare earth elements are indispensable to current standards of living and technology. The nature of its applications is largely due to the unique 4f electrons with highly localized electronic states and very predictable electronic transitions that are weakly influenced by the coordination environment or crystal fields. In general, this means that the unique physical properties of rare earth ions are largely unaffected by their surrounding environment. However, it is worth noting that the subtle changes and subtle interactions of rare earth ions with the surrounding environment are of great r...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/10C02F101/20
CPCB01J20/20B01J20/0277B01J20/0207C02F1/283C02F1/281C02F2101/105C02F2101/20Y02C20/40
Inventor 钟声亮李欣炜宁海金徐先进廖道发
Owner JIANGXI NORMAL UNIVERSITY
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