Domestic Research Status of SO2 Adsorption Materials
In this paper,some researches on SO2 adsorption materials in China are reviewed,the problems found in the present research are summarized,and the future research direction is prospected.In summary,the adsorption capacity of SO2 is closely related to the pore structure and functional group of the material.The most suitable pore size for adsorption of SO2 is likely to be different for different types of materials.When the adsorption condition is atmospheric pressure,the most suitable pore size for adsorption of carbon-based adsorption materials is micropores,the most suitable pore size for adsorption of molecular sieve adsorption materials is micropores,mesoporous or large pores,and the most suitable pore size for adsorption of metal oxide adsorption materials is mesoporous.Therefore,the introduction of basic functional groups or basic substances plays a significant role in maintaining good adsorption capacity in the SO2 adsorption-desorption cycle.
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