Aluminum based metallic glass powder for efficient degradation of AZO dye and other toxic organic chemicals

Patent metadata

Field	Value
Publication number	US-10773244-B2
Application number	US-201916444707-A
Country	US
Kind code	B2
Filing date	Jun 18, 2019
Priority date	Jan 22, 2016
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

The present invention provides amorphous bi-functional catalytic aluminum metallic glass particles having an aluminum metallic glass core and 2 or more transition metals disposed on the surface of the aluminum metallic glass core to form amorphous bi-functional aluminum metallic glass particles with catalytic activity.

First claim

What is claimed is:

1. A method of making an amorphous bi-functional metallic glass powder for catalytic activity comprising the steps of:
heating a metal composition to a molten metal, wherein the metal composition comprises aluminum, yttrium, nickel, and iron;
contacting the molten metal with a high pressure gas jet to atomize the molten metal to form amorphous bi-functional aluminum metallic glass particles with catalytic activity; and
collecting the amorphous bi-functional aluminum metallic glass particles.

2. The method of claim 1 , wherein the amorphous bi-functional aluminum metallic glass particles have a diameter of 0.5-40 μm, or greater than 500 nm.

3. The method of claim 1 , wherein the amorphous bi-functional aluminum metallic glass particles comprises Al 82 Y 8 Ni 7 Fe 3 .

4. The method of claim 1 , wherein at least one of: the Al comprises at least 80%, Y comprises at least 5%, Ni comprises at least 4%, or Fe comprises at least 1% of the composition.

5. The method of claim 1 , wherein the Al comprises 77-87%, Y comprises 5-11%, Ni comprises 4-10% and Fe comprises 1-5% of the composition.

6. The method of claim 1 , wherein the Al comprises about 82%, Y comprises about 8%, Ni comprises about 7% and Fe comprises about 3% of the composition.

7. The method of claim 1 , wherein the metals are selected from a group consisting of Scandium, Titanium, Vanadium, Chromium, Manganese, Iron, Cobalt, Nickel, Copper, Zinc, Yttrium, Zirconium, Niobium, Molybdenum, Technetium, Ruthenium, Rhodium, Palladium, Silver, Cadmium, Hafnium, Tantalum, Tungsten, Rhenium, Osmium, Iridium, Platinum, Gold, Mercury, Rutherfordium, Dubnium, Seaborgium, Bohrium, Hassium, Meitnerium, Ununnilium, Unununium, and Ununbium.

8. The method of claim 1 , further comprising reacting the amorphous bi-functional aluminum metallic glass particles to degrade azo compounds.

9. The method of claim 8 , wherein the azo compounds are selected from a group consisting of Orange II (C 16 H ii N 2 NaO 4 S), Chrysoidine (C 12 H 13 ClN 4 ), Tropaeolin O (C 12 H 9 N 2 NaO 5 S), Acid Orange, and Acid Red.

Assignees

• Univ North Texas

Inventors

• Das Santanu
• Mukherjee Sundeep

Classifications

• B22F1/17

  Metallic particles coated with metal · CPC title

• C22C1/11

  Making amorphous alloys · CPC title

• B22F1/08

  Metallic powder characterised by particles having an amorphous microstructure · CPC title

• B22F1/00

  Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties · CPC title

• B01J35/398

  Egg yolk like · CPC title