化工环保2012，Vol.32Issue(5)：471-474,4.
氧化改性对活性炭吸附二苯并噻吩的影响
Effect of Oxidation Modification on Activated Carbon Adsorption Activity to Dibenzothiophene
兰培 1张淑娟 1潘丙才 1张炜铭1
作者信息
- 1. 南京大学污染控制与资源化研究国家重点实验室,江苏南京210046
- 折叠
摘要
Abstract
The surface of resin-derived activated carbon spheres(RCS) was modified using nitric acid as oxidant. The factors affecting the adsorption of dibenthiophene(DBT) from oil on the modified RCS were studied. The modified RCS and non modified RCS were characterized by N2 adsorption, Beohm titration and DTG. The economic and effective process conditions for RCS modification are as follows: nitric acid concentration 10 mol/L, oxidation temperature 60 ℃, oxidation time 3 h. The specific surface area and the total pore volume of the modified RCS are both decreased. The content of acid groups on the modified RCS surface is increased from 0.83 mmol/g to 3.85 mmol/g. The adsorption isotherms of DBT on the modified RCS and non modified RCS are both fitted well with Freundlich model.关键词
活性炭/二苯并噻吩/改性/硝酸/氧化/吸附Key words
activated carbon/dibenthiophene/modification/nitric acid/oxidation/adsorption分类
资源环境引用本文复制引用
兰培,张淑娟,潘丙才,张炜铭..氧化改性对活性炭吸附二苯并噻吩的影响[J].化工环保,2012,32(5):471-474,4.
