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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.:

US 11739003 B1

PDFFull Text
Date of Patent:
Aug. 29, 2023

Filed:

Dec. 07, 2021

Crystalline α-fe2o3 nanoparticles and method of making and use thereof in photodegradation of organic pollutants, as a photocatalyst and as an antibacterial composition

Applicant:

Imam Abdulrahman Bin Faisal University, Dammam, SA;

Inventor:

Hanan Hussein Amin Mohamed, Dammam, SA;

Assignee:

Imam Abdulrahman Bin Faisal University, Dammam, SA;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Steven J Bos

Int. Cl.
CPC ...
C01G 49/00 (2006.01); C01G 49/04 (2006.01); C30B 30/00 (2006.01); C30B 7/14 (2006.01); B82Y 40/00 (2011.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
C01G 49/04 (2013.01); C30B 7/14 (2013.01); C30B 30/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/72 (2013.01); C01P 2002/82 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/32 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01);
Abstract

Crystalline α-FeOnanoparticles prepared by ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The crystalline α-FeOnanoparticles have a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 260 m/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. The crystalline α-FeOnanoparticles have a band gap of 2.10 to 2.16 eV and a mean pore size of 7.25 to 9.25 nm. A method for the photocatalytic decomposition of organic pollutants using the crystalline α-FeOnanoparticles. An antibacterial composition containing the crystalline α-FeOnanoparticles.

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