Selenium nanomaterials and methods of making and using same

Patent metadata

Field	Value
Publication number	US-11850568-B2
Application number	US-202117370099-A
Country	US
Kind code	B2
Filing date	Jul 8, 2021
Priority date	Oct 13, 2015
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

Method of preparing a selenium nanomaterial and selenium nanomaterial articles. The method may include forming a saccharide coating on a surface of a solid support material, treating the solid support material having the saccharide coating on the surface with a selenous acid solution, and heating the solid support material to form the selenium nanomaterial on the surface of the solid porous support material. The saccharide may include a monosaccharide, a disaccharide, or a polysaccharide, or a combination thereof, such as sucrose, or fructose, or a combination thereof.

First claim

What is claimed is:

1. A method of preparing a selenium nanomaterial comprising:
forming a saccharide coating on a surface of a solid support material,
treating the solid support material having the saccharide coating on the surface with a selenous acid solution, and
heating the solid support material to form the selenium nanomaterial on the surface of the solid porous support material.

2. The method of claim 1 wherein the saccharide comprises a monosaccharide, a disaccharide, or a polysaccharide, or a combination thereof.

3. The method of claim 1 wherein the saccharide comprises sucrose, or fructose, or a combination thereof.

4. The method of claim 1 wherein the saccharide contains fructose.

5. The method of claim 4 wherein the saccharide comprises fructose, sucrose, lactose or turanose.

6. The method of claim 1 wherein the saccharide coating comprises a homogeneous saccharide coating.

7. The method of claim 1 wherein forming a saccharide coating on a surface of a solid support material comprises soaking the solid support material in a saccharide solution.

8. The method of claim 7 further comprising removing excess saccharide solution from the material after soaking the solid support material in the saccharide solution.

9. The method of claim 8 wherein heating the solid support material comprises heating at a temperature in a range of 110° C. to 120° C.

10. The method of claim 1 wherein the selenium nanomaterial on the surface of the solid support material has an average size of 50 nm to 150 nm.

11. The method of claim 1 further comprising quenching or washing the solid support material having selenium nanomaterial on the surface.

12. A method of preparing a selenium nanomaterial comprising:
soaking a solid support material in a saccharide solution to form a homogeneous saccharide coating on a surface of a solid support material,
treating the solid support material having the saccharide coating on the surface with a selenous acid solution, and
heating the solid support material to form homogeneous selenium nanomaterial on the surface of the solid porous support material.

13. The method of claim 12 wherein the pH of the selenous acid solution is less than 3.

14. The method of claim 12 wherein the pH of the selenous acid solution is less than 1.6.

15. The method of claim 12 wherein the saccharide comprises a monosaccharide, a disaccharide, or a polysaccharide, or a combination thereof.

16. The method of claim 12 wherein the saccharide comprises sucrose, or fructose, or a combination thereof.

17. The method of claim 12 wherein the selenium nanomaterials have a diameter from 10 nm to 1000 nm.

Assignees

• Univ Minnesota

Inventors

• Abbas Abdennour
• Ahmed Snober

Classifications

• B01J20/0262 Primary

  Compounds of O, S, Se, Te · CPC title

• A01N59/02

  Sulfur; Selenium; Tellurium; Compounds thereof · CPC title

• B01D53/02

  by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)} · CPC title

• B01J20/28007

  with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like (carbon nanostructures B01J20/205) · CPC title

• B01J20/28045

  Honeycomb or cellular structures; Solid foams or sponges · CPC title