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Aflatoxin B1; Na-montmotillonite; Organic modification; Adsorption capacity; Octadecy trimethyl ammonium bromide
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Research On Adsorption Capacity Of Organically Modified Na-Montmotillonite For Aflatoxin B1, Sun Siyuan, Diao Enjie, Li Xiangyang, Chu Xuan, Wang Jiasheng, Dong Haizhou
Research On Adsorption Capacity Of Organically Modified Na-Montmotillonite For Aflatoxin B1, Sun Siyuan, Diao Enjie, Li Xiangyang, Chu Xuan, Wang Jiasheng, Dong Haizhou
Food and Machinery
Na-montmotillonite (Na-MMT) was organically modified using Octadecy Trimethyl Ammonium Bromide (OTMAB) as a modifier to improve its adsorption capacity of aflatoxin B1 (AFB1). The modified Na-MMT is characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy (SEM), and Thermogravimetric analysis (TGA). The results showed that the OTMAB was intercalated into the Na-MMT, expanded its interlayer spacing (d0.01), and increased its specific surface area. The adsorption isotherm of AFB1 on the modified Na-MMT is followed the Langmuir equation. The maximum adsorption capacity (qmax) and the Langmuir adsorption coefficient (k) …