Zheming Wang, Ph.D.Senior Research Scientist, Fundamental and Computational Sciences Directorate, Chemical and Material Sciences Division, Environmental Dynamics and Simulation
http://emslbios.pnl.gov/id/wang_z Updated: July 19, 2006
WR Wiley Environmental Molecular Sciences Laboratory / Environmental Spectroscopy & Biogeochemistry Facility
Current Activities and Projects
Dr. Wang's current research projects include 1) laser-induced time-resolved fluorescence spectroscopic characterization of uranyl speciation in tank waste-contaminated soils and sediments; 2) spectroscopic characterization of radionuclides and heavy metal ions in Hanford tank wastes; 3) the effect of organic ligand on the kinetics of microbial reduction of Fe(III) and U(VI); 4) spectroscopic studies of lanthanide and aromatic carboxylic acids on mineral-water interface; 5) hydrocarbon diffusion, transport and bioavailability in porous media; 6) laser-induced time-resolved fluorescence characterization of Gd(III) clustering in glasses; 7) steel corrosion and its redox behavior in WIPP brines using laser-induced fluorescence spectroscopy, scanning probe microscopy and X-ray photoelectron spectroscopy.
Dr Wang's research interests include the understanding of f-element spectroscopy and their application in the interrogation of f-element interaction thermodynamics and reaction kinetics in varied chemical and physical environments; development of novel lanthanide-based optical materials; technical development and application of laser fluorescence spectroscopy, optical microscopy and scanning probe microscopic techniques in the material science, environmental science, biological science and biomedical technology.
After graduation, Dr. Wang accepted a three year Department of Energy postdoctoral Fellowship appointment at Pacific Northwest National laboratory working in Dr. Donald M. Friedrich's research group. As a postdoctoral fellow he studied the bonding, structure and reaction thermodynamics, dynamics and kinetics of aromatic carboxylic acids at mineral-water interface and set up the scanning probe microscopy facilities in Environmental Dynamics and Simulation group, Environmental Molecular Science Laboratory. Dr. Wang joined PNNL in early 1998. From early 1997 to 2001, Dr. Wang was in charge of the scanning probe microscopy facilities. Since late 1999 he serves as the deputy Cognizant Space Manager of the environmental spectroscopy laboratory in the Environmental Dynamics and Simulation Group, Environmental Molecular Science laboratory. In May 1998 he co-organized the 1998 Scanning Probe Microscopy Application in Environmental Science and Microbiology Workshop held at PNNL.
Dr. Wang received his Ph.D. in Inorganic/Nuclear Chemistry in 1994 from the Florida State University under the supervision of Professor Gregory R. Choppin. His graduate work mainly involves the development of laser-induced time-resolved fluorescence techniques and their application in the characterization of lanthanide complexes in both solution and solid state.