The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Aug. 22, 2024
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Assignee:
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/65 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C01B 32/15 (2017.01);
U.S. Cl.
CPC ...
C09K 11/65 (2013.01); C01B 32/15 (2017.08); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/82 (2013.01); C01P 2002/84 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/30 (2013.01); C01P 2004/38 (2013.01); C01P 2004/64 (2013.01); C01P 2006/60 (2013.01);
Abstract
A method for synthesizing carbon quantum dots (CQDs) including reacting a mixture of macroalgae and ethanol hydrothermally in an autoclave at a reaction temperature between 150 degrees Celsius (° C.) and 250° C. to form a suspension. The method further includes separating the CQDs from the suspension. The CQDs have a size of 1 to 5 nanometers (nm). The CQDs have a Stokes shift of at least 80 nm at an excitation wavelength of 270-410 nm.