精氨酸改性蒙脱石的制备及其吸附性能

Preparation of Arginine Modified Montmorillonite and Its Adsorption Performance

摘要: 用精氨酸对蒙脱石进行改性，对改性后的蒙脱石进行X射线衍射（XRD）、红外光谱（FT-IR）和热重（TGA）等分析表征，找到具有最优配比的精氨酸改性蒙脱石，将其负载5-氟尿嘧啶.结果表明：精氨酸确实插层进入钠基蒙脱石的层间，精氨酸改性蒙脱石的有机化程度最高可达到30.17%，且其对5-氟尿嘧啶的吸附率可达34.98%.

Abstract: Montmorillonite was modified with arginine, and arginine modified montmorillonite was characterized by X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermogravimetry (TGA). The optimum amount of arginine-modified montmorillonite was loaded with 5-fluorouracil. The experimental results showed that arginine was intercalated into the interlayer of sodium montmorillonite. The highest degree of organic modification of arginine-modified montmorillonite was 30.17%, and its adsorption rate of 5-fluorouracil reached 34.98%.