Study on the Adsorption Performance of Microwave and UV Modified Biochar on Fertilizers
In this paper,biochar was prepared by pyrolysis of corn straw,and modified by microwave heating and ultraviolet irradiation,and its adsorption properties to fertilizer were studied.The results showed that the adsorption capacity of corn stalk biochar modified by two methods was improved,and the maximum adsorption capacity was increased from 21 mg/g to 27.5 mg/g and 29.8 mg/g,respectively,among them,the effect of ultraviolet modification on the adsorption of biochar is more significant.There are two adsorption processes in the process of the biochar adsorbing fertilizer,and the main one is chemical adsorption.
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