Unlock instant, AI-driven research and patent intelligence for your innovation.

Biomorphic structure porous alumina by using scindapsus aureus leaves as template and preparation method thereof

A technology of porous alumina and green radish leaves, applied in chemical instruments and methods, alumina/aluminum hydroxide, inorganic chemistry, etc., can solve problems such as complex operation, high cost, and single structure of finished products

Pending Publication Date: 2022-01-21
XI'AN POLYTECHNIC UNIVERSITY
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of remains structure porous alumina and its preparation method with the green radish leaf as template, to solve the complex operation when preparing the remains structure porous metal oxide in the prior art , high cost, and single finished product structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biomorphic structure porous alumina by using scindapsus aureus leaves as template and preparation method thereof
  • Biomorphic structure porous alumina by using scindapsus aureus leaves as template and preparation method thereof
  • Biomorphic structure porous alumina by using scindapsus aureus leaves as template and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for preparing porous alumina with a green radish leaf as a template, comprising the following steps:

[0035] S1: Soak the green radish leaves in 2% sodium hydroxide solution for 24 hours to remove some impurities contained in the leaves to increase the surface roughness and wettability of the leaves, take them out and rinse them, and then put them in 5% sodium hydroxide solution Soak in hydrochloric acid solution for 12 hours to completely replace the Mg in the leaves 2+ Take out and rinse until the leaves turn from green to brownish yellow, and finally soak them in an absolute ethanol solution for 1 hour to improve the permeability of the leaf cells, dry them for later use, and obtain the green radish leaf template;

[0036] S2: Weigh 7.9g of aluminum nitrate nonahydrate and dissolve it in 200mL of absolute ethanol, and stir at room temperature for 0.5h to obtain an aluminum hydroxide precursor solution;

[0037] S3: Immerse the green radish leaf template in...

Embodiment 2

[0039] A method for preparing porous alumina with a green radish leaf as a template, comprising the following steps:

[0040] S1: Soak the green radish leaves in 3% sodium hydroxide solution for 30 hours to remove some impurities contained in the leaves to increase the surface roughness and wettability of the leaves, take them out and rinse them, and then put them in 6% sodium hydroxide solution Soak in hydrochloric acid solution for 15 hours to completely replace the Mg in the leaves 2+ Take out and rinse until the leaves turn from green to brownish yellow, and finally soak them in absolute ethanol solution for 2 hours to improve the permeability of the leaf cells, dry them for later use, and obtain the green radish leaf template;

[0041] S2: Weigh 7.9g of aluminum nitrate nonahydrate and dissolve it in 200mL of absolute ethanol, and stir at room temperature for 1 hour to obtain an aluminum hydroxide precursor solution;

[0042]S3: Immerse the green radish leaf template in ...

Embodiment 3

[0044] A method for preparing porous alumina with a green radish leaf as a template, comprising the following steps:

[0045] S1: Soak the green radish leaves in 4% sodium hydroxide solution for 36 hours to remove some impurities contained in the leaves to increase the surface roughness and wettability of the leaves, take them out and rinse them, and then put them in 7% sodium hydroxide solution Soak in hydrochloric acid solution for 18 hours to completely replace the Mg in the leaves 2+ Take out and rinse until the leaves turn from green to brownish yellow, and finally soak them in an absolute ethanol solution for 3 hours to improve the permeability of the leaf cells, dry them for later use, and obtain the green radish leaf template;

[0046] S2: Weigh 23.7g of aluminum nitrate nonahydrate and dissolve it in 200mL of absolute ethanol, and stir at room temperature for 1.5h to obtain an aluminum hydroxide precursor solution;

[0047] S3: Immerse the green radish leaf template ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of biomorphic structure porous alumina by using scindapsus aureus leaves as a template, which is specifically implemented according to the following steps of by using the scindapsus aureus leaves which are common and easy to obtain and have strong vitality as a biological template, firstly, pretreating and drying the template, using aluminum nitrate nonahydrate as an aluminum source, using absolute ethyl alcohol as a solvent, uniformly stirring to prepare a precursor dipping solution, soaking the pretreated biological template in the prepared precursor solution, and carrying out aerobic calcination on the scindapsus aureus leaf precursor, and then carrying out furnace cooling to obtain the scindapsus aureus leaf biomorphic structure porous alumina. The scindapsus aureus leaves are adopted as the template, and the porous alumina with the unique scindapsus aureus leaf microcosmic biomorphic structure is prepared by a sol-gel impregnation method, so that resources are reasonably utilized, and the environment is effectively protected. The method is different from common porous metal oxide preparation means such as a hydrothermal synthesis method and a chemical vapor deposition method, and a simple and green novel synthesis method is provided for researchers.

Description

technical field [0001] The invention belongs to the technical field of new methods for preparing inorganic non-metallic materials, and in particular relates to a porous alumina with a relic structure using dill leaves as a template and a preparation method thereof. Background technique [0002] Due to their high specific surface area, large pore size, and good morphology and structural properties, porous metal oxides with relic structure are widely used in the fields of catalysis, adsorption, energy conversion and storage, and have broad application prospects. Common preparation methods include: sol-gel method, hydrothermal synthesis method, chemical vapor deposition method, etc. [0003] In the field of engineering and technical applications, the sol-gel method has been widely used in the preparation of porous metal oxide materials. The method is to dissolve the precursor in a suitable solvent, obtain a transparent solution through dissolution or hydrolysis, obtain structu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01F7/44C01F7/02
CPCC01F7/44C01F7/02C01P2002/72C01P2004/03
Inventor 贺辛亥孙萌萌张婷梁军浩王斌马静妍王博周光瑞
Owner XI'AN POLYTECHNIC UNIVERSITY