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通过季铵盐改性四钛酸钾晶须,应用X射线衍射分析、红外光谱,紫外-可见漫反射光谱对改性前后的四钛酸钾晶须进行表征,并初步研究了不同季铵盐改性的四钛酸钾晶须对苯酚吸附性能的研究。实验结果表明,改性前后的四钛酸钾晶须在紫外光区均有较强的光吸收,而在可见光区其吸收则较弱。改性前后四钛酸钾晶须的结构没有改变,季铵盐能够进入层状化合物的层板间,使改性后的层间距稍微增大。与改性前相比,改性后的四钛酸钾晶须对苯酚的吸附量和吸附率有了明显的提高。
The tetratitanate whiskers modified by quaternary ammonium salt were characterized by X-ray diffraction, infrared spectroscopy and UV-vis diffuse reflectance spectroscopy. The effects of different quaternary ammonium salts Study on Adsorption of Phenol on Modified Tetratitanate Whisker. The experimental results show that potassium tetratitanate whiskers before and after modification have stronger light absorption in the UV region and weaker absorption in the visible region. The structure of potassium tetratitanate whiskers did not change before and after the modification. The quaternary ammonium salt could enter into the lamellar of the lamellar compound and slightly increase the interlayer spacing after modification. Compared with the pre-modification, the modified potassium tetratitanate whiskers adsorption capacity and adsorption rate has been significantly improved.