氨气改性煤质炭对卡马西平的吸附性能研究

Adsorption performance of carbamazepine on ammoniamodified coal-based activated carbon

通过氨气化学气相沉积法(NH3-CVD)对煤质活性炭进行改性,旨在通过改性提高活性炭对卡马西平的吸附性能。采用X射线光电子能谱(XPS)和静态氮吸附(BET)对活性炭进行了表征;采用紫外分光光度法研究活性炭对卡马西平的吸附性能。BET结果显示该改性方法对活性炭织构有明显的改造作用。XPS分析结果表明,氨气改性活性炭能够显著增加活性炭表面氮含量。吸附实验结果表明,改性后的活性炭显著提高了对卡马西平的吸附性能。NH_(3)-CVD改性煤质活性炭可以使其表面氮含量提高,并显著提高其对卡马西平的吸附性能。

To improve the adsorption capacity of carbamazepine on activated carbon,the activated carbon was modified by ammonia chemical vapor deposition(NH_(3)-CVD).The activated carbon was characterized by X-ray photoelectron spectroscopy(XPS)and static nitrogen adsorption(BET).The adsorption properties of carbamazepine on modified activated carbon were studied by UV spectrophotometry.BET results show that the modification method has significant effect on the texture of activated carbon.XPS analysis results show that the surface N content of activated carbon modified by ammonia gas can be significantly increased.By adsorption experiment,it was found that the modified activated carbon significantly improves the adsorption performance of carbamazepine.NH_(3)-CVD modified coal activated carbon can improve the surface nitrogen content and the adsorption performance of carbamazepine.