Research
Field & Interests
- Environmental Soil Chemistry
- Chem- and bio- formation and environmental behavior of Mn oxide minerals in soils
- Chemistry of Mn oxide minerals-pollutant interactions
The current research interests focus on Chem- and bio- formation of Mn oxide minerals and its coupling mechanism in soil environment, and on environmentally important processes of Mn oxides with different genesis, such as mineral alteration, trace element sorption and organic molecule oxidation. The emphasis should be put on the process of bacterial and chemical Mn oxidation, the relation between Mn oxide structure and reactivity. Apart from the common chemical kinetic and thermodynamic methods, multi in situ approaches related to molecular environment science, such as X-ray absorption spectroscopy (XAS), synchrotron radiation X-ray diffraction (SR-XRD), infrared spectroscopy (IR) and Electron Spin Resonance Spectroscopy (ESR), will be adopted to accomplish these goals.
Education
Ph.D. Soil Science, Huazhong Agricultural University, China, 2003
Honors and Awards
2006 National 100-Excellent Doctoral Dissertation Award of P. R. China (2006).
2005 The First Prize of Excellent Paper Awards of Natural Science of Hubei Province (2005).
2004-06 Outstanding Undergraduate Student Instructor of Hubei Province (2004, 2005, 2006).
Contact Information
Plant
and Soil Sciences
152 Townsend Hall
Newark, DE 19716
(302) 831-2052
(302) 831-0605 (FAX)
xionghan@udel.edu
Associated Professor of Environmental Science at HZAU
College of Resources and Environment
Huazhong Agricultural University
Wuhan, P. R. China 430070
+86-27-87280271(Office)
+86-27-87396057(Fax)
fxh73@mail.hzau.edu.cn
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Visiting Scholar
Selected Peer-Reviewed Journal Articles
Feng X. H., Zhan L. M., Tan W. F., Liu F., He J. Z., Zhu Y. G.. Adsorption and redox reactions of heavy metals on synthesized Mn oxide minerals. Environmental Pollution, 2007, 147, 366-373
Zhang, L. M., Liu, F., Tan, W. F., Feng, X. H., Zhu, Y. G. He, J. Z. Microbial DNA extraction and analyses of soil iron-manganese nodules. Soil Biology and Biochemistry, 2007, In Press, doi:10.1016/j.soilbio.2007.01.004
Feng X. H., Zhai L. M., Tan W. F., Liu F., He J. Z.. The Controlling Effect of pH on Oxidation of Cr(III) by Manganese Oxide Minerals. Journal of Colloid and Interface Science, 2006, 298, 258-266
Feng X. H., Tan W. F., Liu F., Ruan H. D., He J. Z.. Oxidation of As(III) by Several Manganese Oxide Minerals in Absence and Presence of Goethite. Acta Geologica Sinica-English Edition, 2006, 80, 249-256
Feng X. H., Zu Y. Q., Tan W. F., Liu F.. Arsenite Oxidation by Several Manganese Oxides as Affected by pH, Ion Strength and Tartaric Acid. Journal of Environmental Sciences, 2006, 18, 292-298
Cui H. J., Feng X. H., Liu F. and Tan W. F. Study on effects of reaction conditions on the formation of todorokite at atmospheric pressure. Clays and Clay Minerals, 2006, 54, 605-615
Feng X. H., Tan W. F., Liu F., Huang Q. Y., Liu X. W.. Pathways of birnessite formation in alkali medium. Science in China, Ser. D, 2005, 48, 1438-1451
Cui H. J., Feng X. H.*, Tan W. F., Liu F., He J. Z.. Factors governing formation of todorokite at atmospheric pressure. Science in China, Ser. D, 2005, 48, 1678-1689
Tan W. F., Liu F., Feng X. H., Huang Q. Y., Li X. Y.. Adsorption and redox reactions of heavy metals on Fe–Mn nodules from Chinese soils. Journal of Colloid and Interface Science, 2005, 284, 600-605
Feng X. H., Tan W. F., Xu Y. S., Wang Y. J.. Hydrothermal Syntheses of todorokite and its influencing factors. Earth Science — Journal of China University of Geosciences, 2005, 30, 348-352
Feng X. H., Tan W. F., Liu F., Wang J. B., Ruan H. D.. Synthesis of todorokite at atmospheric pressure. Chemistry of Materials, 2004, 16, 4330-4336
Feng X. H., Liu F., Tan W. F., Liu X. W.. Synthesis of birnessite by O2 oxidation in alkali medium: effects of synthesis conditions. Clays and Clay Minerals, 2004, 52, 240-250
Feng X. H., Liu F., Tan W. F., Liu X. W., Hu H. Q.. Synthesis of todorokite by refluxing process and its primary characterization. Science in China, Ser. D, 2004, 47, 760-768
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