CAJ | 학술논문

以基于脯氨酸仿生合成的纳米 TiO 2为吸附剂,研究其对牛血清白蛋白(BSA)的吸附行为,并采用傅立叶变换红外光谱(FT-IR)以及差热-热重分析(DTA-TG)对其界面进行表征．研究结果表明：吸附等温线符合Langmuir 吸附模型,为单分子层吸附,最大吸附量为40．1 mg/g,吸附常数为5．71 mL/mg；吸附过程可用 La-gergren 拟一级动力学方程描述；吸附过程为放热物理吸附．界面表征纳米 TiO 2与 BSA 间吸附作用力为氢键和范德华力,与拟合曲线的分析结果相吻合．
이기우포안산방생합성적납미 TiO 2위흡부제,연구기대우혈청백단백(BSA)적흡부행위,병채용부립협변환홍외광보(FT-IR)이급차열-열중분석(DTA-TG)대기계면진행표정．연구결과표명：흡부등온선부합Langmuir 흡부모형,위단분자층흡부,최대흡부량위40．1 mg/g,흡부상수위5．71 mL/mg；흡부과정가용 La-gergren 의일급동역학방정묘술；흡부과정위방열물리흡부．계면표정납미 TiO 2여 BSA 간흡부작용력위경건화범덕화력,여의합곡선적분석결과상문합．
The adsorption behavior of bovine serum albumin (BSA)onto Nano-TiO 2 biomimetic synthesis based on Proline was investigated.Fourier transform infrared spectrophotometry (FT-IR)and Differenti-al Thermal Analysis-Thermal Gravimetry (DTA-TG)were employed to interface characterization.The results showed that fitting curve of isotherm adsorption accorded with Langmuir adsorption model,and the adsorption was monomolecular layer adsorption,and the maximum adsorption capacity was 40.1 mg/g and adsorption constant was 5.71 mL/mg.the adsorption process can be described by Lagerg-ren pseudo-first-order kinetic model,belonging to an exothermic physical adsorption.Interface character-ization showed that the interaction between Nano-TiO 2 and BSA was hydrogen bond and Vander Waals which conforms to the results of analysis of fitting curves.