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:
Nov. 24, 2009
Filed:
Sep. 12, 2006
Applicants:
Jing HU, Kowloon, HK;
Man Chi Lo, Mid-Levels East, HK;
Guohua Chen, Kowloon, HK;
Inventors:
Assignee:
The Hong Kong University of Science & Technology, Hong Kong, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method for making modified jacobsite, Al-doped maghemite or modified maghemite nanoparticles that can be used to adsorb heavy metals, such as Cr(VI), found in wastewater. The magnetic nanoparticles can be separated using a magnetic field after adsorbing heavy metals from wastewater, and processed for reused.