关键词: 伊利石;水热碳化法;低温热处理;吸附;亚甲基蓝

Abstract: An rich oxygen functional groups nano-C/illite composite was fabricated using illite as carrier and glucose as carbonaceous source by a hydrothermal carbonation process and low-temperature heat treatment.The surface properties of rich oxygen functional groups nano-C/illite were explored,combined with fourier transform infrared speetrometry(FTIR),thermogravimetry(TG),scanning electron microscope(SEM),energy dispersive spectrdmeter(EDS),N2 adsorption-desorption and Boehm titration,and the effect of different factors on the adsorption performance were investigated.The results show that hydrothermal products of glucose are uniformly loaded on the surface of illite in the form of amorphous nanocarbon,and the number of oxygen-containing functional groups on the surface of the composite increase.The adsorption of methylene blue on the composite is the best at C/illite of 3:1,the calcination temperature of 300 ℃,and the initial pH of 8.The removal rate is 99.368％.

Key words: illite;hydrothermal carbonization method;low-temperature heat treatment;adsorption;methylene blue