Hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles, and preparation method thereof and application in continuous processing of CO

• US 10,232,347 B2
• Filed: 12/25/2017
• Issued: 03/19/2019
• Est. Priority Date: 12/28/2016
• Status: Expired due to Fees

• Current Assignee: Soochow University (Jiangsu Education Department)
• Original Assignee: Soochow University (Jiangsu Education Department)
• Inventors: Lu, Jianmei, Chen, Dongyun, Jiang, Jun
• Primary Examiner(s): Hailey, Patricia L.
• Application Number:
  US15/853,904
• Publication Number:
  US 20180178197A1
• Time in Patent Office: 449 Days
• Field of Search: 502184, 977810, 428403
• CPC Class Codes: B01J 21/185 Carbon nanotubes carbon nanotubes per se C01B32/15
• CPC Class Codes: B01J 23/52 Gold
• CPC Class Codes: B01J 27/10 Chlorides
• CPC Class Codes: B01J 35/23 in a colloidal state
• CPC Class Codes: B01J 35/30 characterised by their physical properties
• CPC Class Codes: B01J 37/08 Heat treatment B01J37/0009, B01J37/0018 take precedence
• CPC Class Codes: B01J 37/084 Decomposition of carbon-containing compounds into carbon
• CPC Class Codes: B01J 37/088 Decomposition of a metal salt
• CPC Class Codes: B01J 37/16 Reducing
• CPC Class Codes: C01B 32/15 Nano-sized carbon materials
• CPC Class Codes: C01B 32/40 Carbon monoxide
• CPC Class Codes: C01P 2004/03 obtained by SEM
• CPC Class Codes: C01P 2004/04 obtained by TEM, STEM, STM or AFM
• CPC Class Codes: C08F 26/06 by a heterocyclic ring containing nitrogen
• CPC Class Codes: C08F 292/00 Macromolecular compounds obtained by polymerising monomers on to inorganic materials
• CPC Class Codes: C08F 4/02 Carriers therefor
• CPC Class Codes: C08G 2261/3221 containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole
• CPC Class Codes: C08G 73/0266 Polyanilines or derivatives thereof
• CPC Class Codes: C08G 73/0273 Polyamines containing heterocyclic moieties in the main chain
• CPC Class Codes: C08G 73/0627 with only one nitrogen atom in the ring

Abstract

A preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles includes the following steps: (1) in the presence of an initiator, aniline and pyrrole are polymerized in deionized water containing a surfactant to form hollow carbon precursors, and then calcined to obtain hollow mesoporous carbon nanospheres, (2) said hollow mesoporous carbon nanospheres are immersed in a chloroauric acid solution, stirred and then centrifuged to remove the liquid, finally, hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles are obtained by reduction treatment.

Claims

1. A preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles, which comprises the following steps:

(1) in the presence of an initiator, aniline and pyrrole are polymerized in deionized water containing a surfactant to form hollow carbon precursors, and then calcined to obtain hollow mesoporous carbon nanospheres,

(2) said hollow mesoporous carbon nanospheres are immersed in a chloroauric acid solution, stirred and then centrifuged, finally obtaining the hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles by reduction treatment.

2. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (1), the mass ratio of aniline, pyrrole, surfactant, initiator and deionized water is 13:

9;

3;

63.5;

2000.

3. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (1), polymerization temperature is 0°

C., polymerization time is 24 hours;

said initiator is ammonium persulfate.

4. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (1), calcination is carried out in argon, the heating rate of calcination is 5°

C./min, calcining time is 20 h and the temperature is 800˜

900°

C.

5. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (1), first, said aniline, pyrrole, surfactant and deionized water are mixed, and then the precooled initiator is added to polymerize.

6. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (2), the amount of said chloroauric acid solution and said hollow mesoporous carbon nanospheres is 1 L:

10 g;

the concentration of said chloroauric acid solution is 18-25 mmol/L.

7. The preparation method of hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to claim 1, wherein in step (2), the stirring treatment is stirring for 6 hours under vacuum, and the reduction treatment is carried out in CO.

8. A method of continuously processing of CO comprising:

preparing a hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to the method of claim 1; and

continuously treating CO with the hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles.

9. A method of continuously processing of CO comprising:

preparing a hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles according to the method of claim 1; and

placing the hollow mesoporous carbon nanosphere composite material loaded with gold nanoparticles in an environment containing CO, to complete the treatment of CO.