Method of producing electrically active bacteria reduced graphene oxide and electrically active bacteria reduced graphene oxide

Patent metadata

Field	Value
Publication number	US-10876136-B2
Application number	US-201715626584-A
Country	US
Kind code	B2
Filing date	Jun 19, 2017
Priority date	May 30, 2017
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

Reduced graphene oxide is produced by adding graphene oxide and electrically active bacteria to a container. After a period of time reduced graphene oxide is produced by an interaction of the electrically active bacteria and the graphene oxide. The resulting composition of matter includes reduced graphene oxide and electrically active bacteria. The resulting composition of matter can be doped with a plurality of different elements.

First claim

What is claimed is:

1. A composition of matter comprising: reduced graphene oxide; and electrically active bacteria, wherein the electrically active bacteria are Geobacter sulfurreducens.

2. The composition of matter of claim 1 , wherein the composition of matter is doped with both metal and non-metal elements.

3. The composition of matter of claim 1 , wherein portions of the composition of matter are amorphous.

4. The composition of matter of claim 1 , comprising Geobacter sulfurreducens strain, KN400, or Pili mutant of KN 100.

5. A method of producing the reduced graphene oxide of claim 1 , the method comprising:
adding graphene oxide to a container; and
adding Geobacter sulfurreducens to the container,
wherein reduced graphene oxide is produced a period of time after both the graphene oxide and the Geobacter sulfurreducens active bacteria are added to the container, by an interaction of the Geobacter sulfurreducens and the graphene oxide.

6. The method of claim 5 , wherein the Geobacter sulfurreducens comprises a strain selected from the group consisting of KN400 and Pili mutant of KN400.

7. The method of claim 5 , wherein the Geobacter sulfurreducens and the reduced graphene include both metal and non-metal elements.

8. The method of claim 5 , wherein elemental doping of reduced graphene oxide occurs simultaneously with the production of the reduced graphene oxide.

9. The method of claim 5 , wherein the reduced graphene oxide is produced without toxic precursors.

10. The method of claim 5 , wherein the reduced graphene is produced at ambient conditions during the period of time.

11. The method of claim 10 , wherein the reduced graphene is produced at 30° C. and atmospheric pressure.

12. The method of claim 5 , further comprising: adding electrically active bacteria growth media to the container.

13. The method of claim 12 , wherein the electrically active bacteria growth media includes, as an electron donor substrate, at least one of acetate, formate, hydrogen gas, and volatile fatty acids.

14. The method of claim 12 , wherein the Geobacter sulfurreducens is added to the container after adding the graphene oxide and the electrically active growth media to the container.

15. The method of claim 12 , wherein the electrically active bacteria growth media includes an electron donor but not an electron acceptor.

16. The method of claim 15 , wherein the graphene oxide acts as the electron receptor.

17. A composition of matter, comprising: reduced graphene oxide; and electrically active bacteria, wherein the composition of matter includes iron oxide and sulfur nanoparticles.

18. The composition of matter of claim 17 , comprising Geobacter sulfurreducens.

Assignees

• Univ King Abdullah Sci & Tech

Inventors

• Kalathil Shafeer
• Katuri Krishna Prasad
• Alazmi Amira Salman
• Costa Pedro Miguel
• Saikaly Pascal E

Classifications

• C01B32/192

  starting from graphitic oxides · CPC title

• C12P3/00 Primary

  Preparation of elements or inorganic compounds except carbon dioxide {(recovery of carbon dioxides as by-products C12F3/02)} · CPC title