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Abstract In order to improve the adsorption capacity of montmorillonite to medicine, the optimum preparation process of one step composite montmorillonite modified by KH-570 and CTAB was explored by orthogonal experiment. Na-MMT, CTAB-MMT, KH-570-MMT and CTAB-KH570-MMT were systematically characterized by Fourier transform infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), thermal gravimetric analysis (TGA), Brunauer-Emmett-Teller(BET), Differential scanning calorimeter(DSC) and Scanning electron microscope(SEM). Meanwhile, the adsorption capacity (AC) for triazolone of the samples was also investigated. The results showed that KH-570 and CTAB grafted on montmorillonite greatly improved the lipophilicity of montmorillonite and did not change the mesoporous structure of montmorillonite. The adsorption capacity of montmorillonite for triazolone after KH-570 and CTAB composite modification reached up to 69.67 mg/g which was much more than the adsorption capacity of the other samples.
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Received: 08 January 2021
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2020, Vol. 33 
