(668c) Microporous MOFs with Specific Binding Sites for Trace Gas Contaminants Removal

WANG Jun ¹, DENG Shuguang ^1,2

¹ School of Resource, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China

² School for Engineering of Matter, Transport and Energy, Arizona State University, 551 E. Tyler Mall, Tempe, AZ 85287, USA

Abstract: Excessive energy consumption caused by ever-growing population and economy, which compels the massive utilization of low-grade coal and fuels. Sulfur dioxide (SO₂) emissions induced by the combustion of these fossil fuels are serious threat to human health and detriment on environment. Meanwhile, aromatic hydrocarbons contains various volatile organic compounds (VOCs) are direct haze to human health and induce the formation of PM 2.5. However, it is very challenging to achieve efficient and deep removal of gas contaminants, especially, in the cases of extremely low contaminant concentrations. Constructing MOF materials with specific binding sites could significantly enhance the capture ability toward these trace gas contaminants. Thus, we have applied ELM-12 with polar CF₃SO₃^- groups, and the specific recognition sites enable the highly efficient SO₂ removal from gas mixtures. Meanwhile, the novel microporous MOF of NCU-1 have showed superior adsorption capacities of various VOCs, for instance, it displayed a high benzene uptake of 2.9 mmol g^-1 at 0.1 mbar and 303 K.