A Seminar: "Chemically Modified Polyacrylonitrile Fibers for the Separation of Uranium from Seawater"

Start Date: March 03 2017 - 12:00 PM

End Date: March 03 2017 - 01:00 PM

Audience: Student, Faculty and Staff

Category: Lectures

Location: S-112

Description:

STEM Academy & The Chemistry Club Present: A Seminar: "Chemically Modified Polyacrylonitrile Fibers for the Separation of Uranium from Seawater" by Prof. Spiro Alexandratos, Ph.D., Chemistry Department of Hunter College Abstract: All nations depend on sources of energy for everything from industrial output to warmth and cooking. This has led to the current situation of the burning of massive amounts of fossil fuels and its corollary: the emission of 35 billion tons of CO2 into the atmosphere in 2015 alone. this has unquestionably led to the facts that "...2015 was the hottest year since records began in 1880 (and) the 16th warmest years recorded are in the 1998-2015 period." Nuclear energy is the only form of energy that is ready now to stem the use of fossil fuels. Uranium is a critical resource for nuclear energy, but terrestrial mining and processing is as dirty a process as the many ways of recovering fossil fuels. A new process to recover uranium is to absorb it from oceans in which it is dissolved 4.5 billion tons. The problem is that Uranium is present in an extremely low concentration (3.3 parts per billion) in a matrix that contains common metal ions, such as, Calcium, Sodium, and Magnesium in concentrations orders of magnitude greater. Most importantly, any method to absorb the Uranium must be environmentally compatible and not introduce any pollutant what so ever. This talk describes how such a proces using polyacrylonitrile (the same material used in the manufacture of sweaters and stockings) has been modified with the amidoxime ligand. All are invited to attend. QCC ID Required. Lunch will be served. Co-Sponsors: Science Research Alliance, STEM Research Club, QCC Student Affiliates of the American Chemical Society, Phi Theta Kappa, ASAP Club, CSTEP Club, SACNAS QCC Chapter, Haitian Club, Korean Student Association. 

 


Contact Name: Dr. Paris Svoronos

Contact Phone: 718.281.5562

Contact Email: psvoronos@qcc.cuny.edu

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