Abstract
ABSTRACT In recent years, various adsorbents have been developed to alleviate atmospheric pollution and remove harmful gases, such as carbon dioxide, sulfur dioxide, nitrogen oxides, hydrogen sulfide and volatile organic compounds. Polymer-based adsorbents are a novel type of material now being used for gas separation and purification; in particular, molecular imprinted polymers (MIPs) can achieve selective adsorption of target gas molecules. However, existing review papers have not yet discussed the application of MIPs in gas purification. In this paper, therefore, we exhaustively summarize recently developed adsorbents, including the materials based on carbon, zeolite, and metal-organic frameworks as well as MIPs, to analyze the status of these materials and identify promising adsorbents for gas purification.
Highlights
85% of demanded energy is supplied by thermal power plants that use fossil fuels (Akinyele et al, 2014)
The results indicated that CuBTC had the best adsorption of nitrogen oxides (NOx), and the other adsorbents could not provide effective separation with large adsorption capacities for NOx; this shortcoming was attributed to the small dipole moment of NOx
The results demonstrated that the nitric oxide (NO) adsorption ability of MIPa was superior to that of MIPb, suggesting that the acidic functional monomer acrylic acid (AA) is beneficial for improving NO adsorption capacity
Summary
85% of demanded energy is supplied by thermal power plants that use fossil fuels (Akinyele et al, 2014). Emphasis is placed on functional adsorbents, such as MIPs and carbon-based, zeolite-based, and metal-organic framework (MOF) materials, as well as their selectivity and separation properties.
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