Use of Keplerate type polyoxymolybdates for decontaminating aquatic environments

Patent metadata

Field	Value
Publication number	US-11530140-B2
Application number	US-201816753391-A
Country	US
Kind code	B2
Filing date	Sep 29, 2018
Priority date	Oct 5, 2017
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

Use of Keplerate type polyoxomolybdates of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , for decontaminating aqueous media (water) from inorganic and organic pollutants.

First claim

The invention claimed is:

1. A method comprising decontaminating aqueous media from inorganic and organic pollutants with a Keplerate type polyoxomolybdate of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , in combination with electromagnetic radiation having a wavelength exceeding 400 nm wherein the Keplerate type polyoxomolybdate is used in combination with a persulfate as an oxidizing agent.

2. The method in accordance with claim 1 wherein M is Fe.

3. The method in accordance with claim 1 wherein the electromagnetic radiation is sunlight.

4. The method in accordance with claim 1 wherein the aqueous media are selected from process waters of textile finishing, dye production, chemical synthesis, petrochemical synthesis or pharmaceutical synthesis or from waste water collecting systems in hospitals or urban environments.

5. The method in accordance with claim 1 wherein the pollutant is selected from organic pollutants.

6. The method in accordance with claim 5 wherein the organic pollutant is selected from pharmaceutically active ingredients, agricultural active ingredients, peptides or aromatic organic compounds.

7. The method in accordance with claim 5 wherein the organic pollutant is selected from pharmaceutically active ingredients and agriculturally active ingredients.

8. The method in accordance with claim 1 wherein the pollutant is selected from inorganic pollutants.

9. The method in accordance with claim 1 wherein the pollutant is a dyestuff.

10. A process for the decontamination of aqueous environments, the process comprising:
adding a Keplerate type polyoxomolybdate of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , and a persulfate as an oxidizing agent to the aqueous environment forming an aqueous solution/slurry, and
thereafter, irradiating the aqueous solution/slurry with electromagnetic radiation having a wavelength exceeding 400 nm.

11. A process for the decontamination of aqueous environments, the process comprising:
flowing an aqueous solution comprising a persulfate as an oxidizing agent over a selected carrier while irradiating the aqueous solution with electromagnetic radiation having a wavelength exceeding 400 nm,
wherein the selected carrier comprises a Keplerate type polyoxomolybdate of the general structure Mo 72 M 30 , wherein M is selected from the group consisting of Fe, Cr, V or Mo 2 , supported on a solid support.

Assignees

• Univ Berlin Tech

Inventors

• Driess Matthias
• Schomäcker Reinhard
• Somenath Garai
• Gross Martin
• Acharjya Amitava
• Schwarze Michael
• Menezes Prashant

Classifications

• C02F2101/322

  Volatile compounds, e.g. benzene · CPC title

• C02F2103/365

  from petrochemical industry (e.g. refineries) · CPC title

• C02F2305/10

  Photocatalysts · CPC title

• Y02W10/37

  using solar energy · CPC title

• C02F2103/343

  from the pharmaceutical industry, e.g. containing antibiotics · CPC title