Preparation of polyacrylonitrile-based activated carbon fiber for CS2 adsorption
Preparation of polyacrylonitrile-based activated carbon fiber for CS2 adsorption
复制标题
CS2吸附用聚丙烯腈基活性炭纤维的制备
DOI：
10.1007/s11164-020-04156-1
复制
发表时间：
2020
影响因子：
3.3
通讯作者：
Wang Yingwu
中科院分区：
文献类型：
--
作者：
Li Kunlin;Li Kai;Wang Chi;Ning Ping;Sun Xin;Song Xin;Wang Yingwu
采用CO2活化法和KOH活化法分别制备了聚丙烯腈(PAN)基活性碳纤维(ACF)，并将其用于常温下对CS2的吸附。用扫描电子显微镜、CO2程序升温脱附和傅里叶变换红外光谱对所制备的吸附剂进行了表征。研究了不同条件(预氧化工艺、炭化温度、CO2活化温度和时间、碳/KOH比、KOH活化温度和时间)制备的ACF的吸附活性。当ACF(I700)-CO2(900 + 90)活化时，ACF对CS2的最佳穿透吸附容量为55.63mgs/g。当活化剂为ACF(I700)-KOH(1：1 + 900 + 60)时，CS2的最佳穿透吸附容量为49.52mgS/g。
Polyacrylonitrile (PAN)-based activated carbon fiber (ACF) was prepared by CO2and KOH activation method, respectively, and used for the adsorption of CS2at room temperature. The adsorbents were characterized by scanning electron microscope, CO2-temperature-programmed desorption and Fourier transform infrared spectroscopy. The adsorption activity of ACF prepared by different conditions (preoxidation process, carbonization temperature, CO2activation temperature and time, carbon/KOH ratio, KOH activation temperature and time) was studied. The best breakthrough adsorption capacity of CS2was 55.63 mgS/g when the ACF was activated by CO2[ACF(I700)-CO2(900 + 90)]. The best breakthrough adsorption capacity of CS2was 49.52 mgS/g when the activator was KOH [ACF(I700)-KOH(1:1 + 900 + 60)].