Nanocrystalline surface interface regulation and its application in heavy metal pollution treatment and recovery
2014-12-10
Date: 2014-12-10
Time: 14:00
Venue: Room B-110, Agricultural Life Ring Building, Zhejiang University
Speaker: Zhang Lin
Speaker profile:Zhang Lin, Ph.D., researcher, researcher, research team leader, doctoral tutor of Fujian Institute of Material Structure, Chinese Academy of Sciences, and now the director of the Graduate Department of the Fujian Institute of Physical Sciences, Chinese Academy of Sciences. In 2010, it was funded by the Fujian Provincial Outstanding Youth Fund. In 2011, it was funded by the “Chinese Academy of Sciences Emerging and Interdisciplinary Science Pilot Project” talent project. In 2011, it was funded by the National Outstanding Youth Fund. Nearly one hundred SCI papers have been published in J. Am. Chem. Soc., Angew. Chem. Int. Ed., ES&T, Chem. Commun., Nanoscale, JPCB and others.
Research on heavy metal pollution and control, in the combination of nano and biotechnology to deal with chromium pollution, have achieved some original results:
(1) The basic research on the rapid growth of nanocrystalline "oriented bonding" and "collective phase transition" through the interface of the table reveals the elimination of heavy metal nano-contaminants during the rapid growth of nanocrystals, and proposes the use of surface interface to regulate nanometers. The idea of rapid growth of crystals to treat environmentally harmful nano-waste. This principle has been successfully applied to solve the problem of typical nano-chromium slag treatment in China's chlorate industry, and the construction of pilot pilot line has been completed in enterprises. Achieving the goal of “conserving pollution at the source” and converting “contaminants” into “green products”. The results of the relevant basic research were published and highly evaluated by Angew. Chem. Int. Ed. and J. Am. Chem. Soc., and the work of chromium slag treatment was selected as a research highlight by Nature China.
(2) In order to solve the bottleneck problem of “reduction is easy but difficult to fix” in microbial remediation of chromium, the microscopic process of microbial reduction and immobilization of chromium was explored, and the coordination mechanism of microbial immobilized chromium was elucidated, and the amino acid content in the regulation system was first proposed. The principle of microbial efficient fixation of chromium, and according to this, gives a universal method for chromium fixation. Expanding the application of atomic force microscopy methodology in environmental microbiology research has formed the characteristics of using nanotechnology to study environmental issues. The use of atomic force microscopy to study microbial-heavy metal interactions was included in the "AFM Global Annual Technology Competition" 2007 calendar picture. A review of research on microbial mineralization of chromium and uranium was published on Element.
Teachers and students are welcome to participate!
Contact: Wen Yuezhong Associate Professor (15355025858)
School of Environment and Resources Institute of Environmental Sciences