James Carr

Emeritus Professor
(Not accepting graduate students)
Emeritus Professor<br /> (Not accepting graduate students) Profile Image

Department of Chemistry
University of Nebraska-Lincoln
317C Hamilton Hall
Lincoln, NE 68588-0304
(402) 472-2703
jcarr1@unl.edu

Research Interests

Analytical chemistry

Current Research

Dr. Carr's research concerns analytical chemistry of trace substances in water as well as remedial treatment of contaminated water. His students have used GC-MS to measure sub-part per billion concentrations of atrazine and other herbicides as well as their resulting degradation products in environmental samples. Special attention has been given to the Platte River, its tributaries, and the wellfield of the city of Lincoln. A major outcome of this work has been to establish the speed of the connection between ground and surface waters, allowing the city to minimize the concentration of these herbicides which enter the drinking water system.

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The oxidation of aqueous solutes, such as herbicides, by ozone, hypochlorite, and ferrate(VI) are being investigated as a means to destroy objectionable substances in contaminated waters. Rates and products of these oxidation reactions are determined.

Potassium ferrate(VI), K2FeO4 , is a strong oxidizing agent which is highly water soluble and will oxidize a wide variety of aqueous solutes. The kinetics of its oxidation reactions with a wide variety of solutes have been studied. Its acid-base properties have been deduced and used to interpret its kinetic behavior. Studies of the mechanism of ferrate oxidation of dimethyl sulfide and azide ion have shown that oxidation occurs via oxygen-atom transfer and that iron(IV) is an intermediate species in these reactions.

Selected Publications

(1) Corrosion of steel shipwrecks in the marine environment: USS Arizona-Part 1
Johnson, Donald L.; Wilson, Brent M.; Carr, James D.; Russell, Matthew A.; Murphy, Larry E.; Conlin, David L. Dept. of Mechanical Engineering, University of Nebraska-Lincoln, Sun City West, AZ, USA. Materials Performance (2006), 45(10), 40-44.

(2) Corrosion of steel shipwrecks in the marine environment: USS Arizona-Part 2
Johnson, Donald L.; Wilson, Brent M.; Carr, James D.; Russell, Matthew A.; Murphy, Larry E.; Conlin, David L. Dept. of Mechanical Engineering, University of Nebraska-Lincoln, Sun City West, AZ, USA. Materials Performance (2006), 45(11), 54-57.

(3) Kinetics and product identification of oxidation by ferrate(VI) of water and aqueous nitrogen-containing solutes
Carr, James D.. Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, USA. Preprints of Extended Abstracts presented at the ACS National Meeting, American Chemical Society, Division of Environmental Chemistry (2006), 46(2), 584-587.

(4) A Minimum-Impact Method for Measuring Corrosion Rate of Steel-Hulled Shipwrecks in Seawater
Russell; Matthew A.; Larry E.; Conlin, Murphy, David L.; Johnson, Donald L.; Wilson, Brent M.; Carr, James D. Submerged Resources Center, National Park Service, Santa Fe, NM, USA. International Journal of Nautical Archaeology (2006), 35(2), 310-318.

(5) Kinetics and product identification of oxidation by ferrate(VI) of water and aqueous nitrogen-containing solutes
Carr, James D.. Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, USA. Abstracts of Papers, 232nd ACS National Meeting, San Francisco, CA, United States, Sept. 10-14, 2006 (2006), ENVR-039.

(6) General chemistry for engineers at Big 10 and Big 12 universities
J. D. Carr, Abstracts of Papers, 226th ACS National Meeting, New York, NY, United States, September 7-11, 2003, CHED-215.