高等学校化学学报2012，Vol.33Issue(3)：548-554,7.DOI:10.3969/j.issn.0251-0790.2012.03.022
活性炭表面基团的定性和定量分析
Quantitative and Qualitative Analyses of Oxygen-containing Surface Functional Groups on Activated Carbon
摘要
Abstract
The petroleum coke based activated carbon was oxidized by ammonium persulfate. The type and distribution of oxygen-containing surface functional groups ( OCFGs) on activated carbon before and after oxidation was monitored using elementary analysis, FTTR spectrometry, temperature-programmed desorption coupled with mass spectrometry (TPD-MS) , X-ray photoelectron spectroscopy (XPS) , and X-ray absorption near edge structure ( XANES) spectroscopy. The results obtained from these methods were compared with each other. It was found that using the TPD-MS method currently reported in the literature to quantify various OCFGs on the carbon surface on the basis of TPD-CO2 and TPD-CO profiles is significantly superior to the others due to its good accuracy and reproduction along with simple experimental conditions. Both of the concentration of OCFGs obtained by XPS and XANES methods are under the estimated ones.关键词
活性炭/含氧基团/定量分析/TPD-MSKey words
Activated carbon/Oxygen-containing functional group/Quantitative analysis/Temperature-pro-grammed desorption coupled with mass spectrometry (TPD-MS)分类
化学化工引用本文复制引用
李娜,朱健,查庆芳..活性炭表面基团的定性和定量分析[J].高等学校化学学报,2012,33(3):548-554,7.基金项目
国家重质油重点实验室开放基金(批准号:SKLVP201102008)资助. （批准号:SKLVP201102008）
