摘要
采用硫酸对活性炭进行改性,探讨硫酸浓度、改性温度对改性活性炭吸附性能的影响。结果表明,随着温度的升高,改性活性炭的亚甲基蓝吸附值和碘吸附值呈现先升后降的趋势,而苯吸附值和苯酚吸附值总体呈不断下降趋势;随着硫酸浓度的升高,改性活性炭的亚甲基蓝吸附值、碘吸附值和苯吸附值呈不断下降的趋势,而苯酚吸附值呈先降后升的趋势。与未改性的活性炭相比,改性活性炭的亚甲基蓝吸附值和碘吸附值均有所降低,苯酚吸附值有所升高,而苯吸附值在一定范围内有所升高。
The effects of sulfate acid concentration and modification temperature on the adsorption properties of activated carbon were discussed.The results showed that the adsorption value of methylene blue and iodine of activated carbon increased in a maximum point,then decreased with the increase of modification temperature,however,the adsorption value of phenol and benzene decreased;with the increase of sulfate acid concentration,the adsorption value of methylene blue,iodine and benzene decreased,and the phenol adsorption firstly decreased and then increased.Compared with the unmodified activated carbon,the adsorption value of methylene blue and iodine of the modified activated carbon decreased,the phenol adsorption value increased,the benzene adsorption value increased in a range.
出处
《福建林业科技》
2011年第2期103-106,共4页
Journal of Fujian Forestry Science and Technology
关键词
活性炭
硫酸改性
吸附性能
activated carbon
sulfate acid modification
adsorption property
