Zhang Weixian: Male, American nationality, born in 1964, John? Doctor of Philosophy, Hopkins University. He used to be an assistant professor, associate professor and lecturer at Lihai University. He is currently the director of the State Key Laboratory of Pollution Control and Resources Research, the president of the Institute of Advanced Environment of Tongji University, and a member of the academic committee of Tongji University. 2065438+Since May 2006, he has been an independent director of the company. Professor Zhang Weixian has long been committed to the research in the fields of environmental nano-materials, environmental restoration, solid waste/hazardous waste and so on. He is the inventor of nano-iron technology. He has completed more than 654.38 billion yuan of scientific research projects, obtained more than 20 patents from China, the United States and Europe, published more than 65.438+000 SCI papers, and was cited more than 23,000 times. He has won the National Science Foundation of the United States and the National Outstanding Young Professor of Nature Award.