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A method for preparing multi-component cerium oxide-based nanosheet material

A technology of nano-flakes and cerium oxide, which is applied in the field of preparing nano-flakes materials, and achieves the effects of good experiment repeatability, improved decolorization ability, and simple steps

Inactive Publication Date: 2016-05-11
RES INST OF XIANGCHENG SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After searching the literature of the prior art, no domestic patent reports have been found around the preparation of nano-flake materials. The method of synthesizing cerium oxide nano-flake materials in the world is slightly involved in chemical physical deposition and hydrothermal methods. Therefore, it is urgently needed A kind of new preparation method improves above-mentioned problem

Method used

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  • A method for preparing multi-component cerium oxide-based nanosheet material
  • A method for preparing multi-component cerium oxide-based nanosheet material
  • A method for preparing multi-component cerium oxide-based nanosheet material

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Embodiment 1

[0029] Collect rose petals, wash the petals with clean water, soak them in 5% dilute hydrochloric acid solution for 2 hours, take them out, wash them with ethanol, and then soak them in 5% dilute hydrochloric acid for 2 hours , then wash it with ethanol, take it out, rinse it repeatedly with clear water and dry it in the shade to form a biological template; prepare an aqueous solution with a ratio of 9:1 with cerium nitrate: zirconium nitrate molar ratio, the total concentration of inorganic salts in the aqueous solution 0.1mol / L, the pretreated biological template was added to the above aqueous solution and immersed for 24 hours; the impregnated product was taken out, the sample was first washed with ethanol aqueous solution, then washed with deionized water, dried, and dried in a muffle In the furnace, the temperature was raised to 550°C at a rate of 2°C / min, kept for 3 hours, and then taken out after natural cooling to obtain Ce 0.9 Zr 0.1 o 2 nanosheet material.

[0030...

Embodiment 2

[0036]Collect peach blossom petals, wash the peach blossom petals with clean water and soak them in a 5% dilute hydrochloric acid solution for 2 hours, take them out, wash them with ethanol, and soak them in 5% dilute hydrochloric acid for 2 hours hour, take it out and then wash it with ethanol, then take it out and rinse it repeatedly with clean water and dry it in the dark to form a biological template; prepare an aqueous solution with a ratio of cerium chloride: copper chloride molar ratio of 9.5:0.5, in the aqueous solution The total concentration of inorganic salts is 0.05mol / L. Add the pretreated biological template into the above aqueous solution and soak for 18 hours; take out the impregnated product, wash the sample with ethanol aqueous solution first, then wash it with deionized water and dry it , and raised the temperature to 700°C at a rate of 2°C / min in the muffle furnace, kept it for 2 hours, and took it out after natural cooling to obtain Ce 0.95 Cu 0.05 o 1.9...

Embodiment 3

[0040] Collect chrysanthemum petals, wash the chrysanthemum petals with water and soak them in a 5% dilute hydrochloric acid solution for 2 hours, take them out, wash them with ethanol, and soak them in 5% dilute hydrochloric acid for 2 hours hour, take it out and wash it with ethanol again, then take it out and rinse it repeatedly with clear water and dry it in the shade to form a biological template; with cerium sulfate:titanium tetrachloride molar ratio is 9.9:0.1 ratio preparation aqueous solution, in the aqueous solution The total concentration of inorganic salts is 0.2mol / L. Add the pretreated biological template into the above aqueous solution and soak for 18 hours; take out the impregnated product, wash the sample with ethanol aqueous solution first, and then wash it with deionized water. Dry, and heat up to 600°C at a rate of 2°C / min in a muffle furnace, keep it warm for 2 hours, and take it out after natural cooling to obtain Ce 0.99 Ti 0.01 o 2 nanosheet material....

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Abstract

The invention discloses a method for preparing a multi-component cerium oxide-based nano flake material, which comprises the following steps: (1) collecting plant petals and performing pretreatment to form a biological template; (2) impregnating the biological template in cerium salt and inorganic (3) The impregnated product is washed, dried, kept warm for 1-3 hours, and naturally cooled to obtain a multi-component composite nano-sheet material. The preparation method of the invention has simple steps, does not require complex equipment for reaction, requires few types of chemical raw materials, is cheap, has wide sources of biological templates, is easy to remove, has no pollution to the environment, and has good experiment repeatability.

Description

technical field [0001] The invention relates to a method for preparing nano-sheet materials, in particular to a method for preparing multi-component cerium oxide-based nano-sheet materials, and belongs to the technical field of material science and technology. Background technique [0002] Cerium oxide is a rare earth oxide material with low redox potential and high catalytic activity, with Ce 4+ and Ce 3+ Two variable valence states are attracting more and more researchers' attention as catalysts for chemical oxidation. Chemical oxidation is a new method that can effectively realize the purification and treatment of organic wastewater. The essence of this technology is to use catalysts to dissolve oxygen or oxidants (such as O 3 , H 2 o 2 etc.) into hydroxyl radicals OH? with higher oxidation potential, so as to attack organic macromolecules, and use the strong oxidation of free radicals to degrade organic pollutants into small molecules or even harmless substances, so ...

Claims

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Application Information

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IPC IPC(8): B01J23/10B01J23/83B01J35/02
Inventor 陈志刚刘成宝陈丰钱君超王盟盟张玉珠刘灿斌
Owner RES INST OF XIANGCHENG SUZHOU UNIV OF SCI & TECH
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