Environmental Applications of 2D Nanomaterials
Recent advances in two-dimensional (2D) nanomaterials offer unprecedented opportunities in environmental applications that can potentially revolutionize water and wastewater treatment technologies. In this talk, I will discuss the interesting properties of 2D nanomaterials (e.g., graphene oxide/GO and MoS 2 ) and their promises in advancing membrane filtration, adsorption, disinfection, and biofouling control. For example, 2D GO and MoS 2 nanosheets can serve as building blocks to ingeniously make new nanostructured membranes with exceptional mechanical, electrical, chemical, and biological properties, thereby significantly improving the separation efficiency of water purification membranes. In particular, different 2D nanomaterials demonstrate dramatically different swelling behavior in aqueous environment due to variance in the interalyer attraction and repulsion forces. As another example, MoS 2 exhibits high selectivity and adsorption capacity towards heavy metals that can be used for heavy
metal removal and recovery from wastewater; and the antimicrobial properties of MoS 2 nanosheets enable their application as a coating material to control biofouling.
Speaker: Baoxia Mi, Assistant Professor
Baoxia Mi is an assistant professor in the Civil and Environmental Engineering
Department at the University of California, Berkeley. She received BS and MS from
Tianjin University in China, Ph.D. from the University of Illinois at Urbana-Champaign,
and a postdoctoral training at Yale University, all in environmental engineering.
Currently, she directs the research and educational activities of the Membrane
Innovation Lab, studying physicochemical and biological processes with emphases on
advanced membrane processes and nanotechnology to address some of the most
challenging issues in sustainable water supply and civil infrastructure, renewable energy
production, and public health protection. Dr. Mi’s recent achievements include an NSF
CAREER Award and invited speaker at the US NAE Frontiers of Engineering Symposium.