Porous manganese-containing Fenton catalytic material and preparation method and use thereof

Patent metadata

Field	Value
Publication number	US-12357970-B2
Application number	US-202217846268-A
Country	US
Kind code	B2
Filing date	Jun 22, 2022
Priority date	Apr 21, 2022
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

The disclosure provides a porous manganese-containing Fenton catalytic material and a preparation method and use thereof. The porous manganese-containing Fenton catalytic material according to the disclosure includes particles with a cluster structure and the particles with the cluster structure include a porous-structure calcium oxide and two-dimensional nanosheets of a Mn—Ca compound on a surface of the porous-structure calcium oxide.

First claim

What is claimed is:

1. A method for preparing a porous manganese-containing Fenton catalytic material, comprising steps of
calcining a marine biomass shell material, to obtain a porous-structure calcium oxide;
in a protective atmosphere, mixing the porous-structure calcium oxide with an anhydrous alcohol solvent, to obtain a calcium oxide dispersion; and
in a protective atmosphere, mixing the calcium oxide dispersion with a solution of MnCl 2 to obtain a mixture, and subjecting the mixture to a self-assembly reaction, to obtain the porous manganese-containing Fenton catalytic material;
wherein the porous manganese-containing Fenton catalytic material comprises particles with a cluster structure, wherein
the particles with the cluster structure comprise a porous-structure calcium oxide and two-dimensional nanosheets of a Mn—Ca compound on a surface of the porous-structure calcium oxide.

2. The method as claimed in claim 1 , wherein the marine biomass shell material comprises at least one selected from the group consisting of an oyster shell, a paphia undulata shell, and a scallop shell.

3. The method as claimed in claim 1 , wherein calcining the marine biomass shell material is performed at a temperature of 900-1200° C. for 1-5 h.

4. The method as claimed in claim 1 , wherein a mass ratio of the porous-structure calcium oxide to the solution of MnCl 2 is in the range of 1:0.3 to 1:30.

5. The method as claimed in claim 1 , wherein the self-assembly reaction is performed with a stirring, and the stirring is performed at a speed of 500-1,000 rpm for 3-48 h.

6. The method as claimed in claim 1 , wherein the particles with the cluster structure have a particle size of 5-10 μm.

7. The method as claimed in claim 1 , wherein the two-dimensional nanosheets have a thickness of 3-4 nm.

8. The method as claimed in claim 1 , wherein an atomic percentage of Mn in the Mn—Ca compound is in the range of 1-10%.

9. The method as claimed in claim 5 , wherein a mass ratio of the porous-structure calcium oxide to the solution of MnCl 2 is in the range of 1:0.3 to 1:30.

Assignees

• Univ Fuzhou

Inventors

• Yu Yan
• Zhuang Zanyong
• Zhou Linxin

Classifications

• B01J35/50

  characterised by their shape or configuration · CPC title

• B01J35/393

  Metal or metal oxide crystallite size · CPC title

• B01J35/40

  characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77) · CPC title

• C02F2101/40

  containing sulfur · CPC title

• C02F2101/20

  Heavy metals or heavy metal compounds · CPC title