陈杰,袁才登,李海朝,张丽娟,徐贵钰

• 1:天津大学化工学院
• 2:青海民族大学化学与生命科学学院

摘要(Abstract)：

以青海草原危害性植物瑞香狼毒根为原料、磷酸为活化剂,采用正交试验法制备高效活性炭吸附剂,考察了固液比、磷酸浓度、活化温度和活化时间4个因素对活性炭产率及吸附性能的影响。采用氮气吸附-脱附、扫描电镜(SEM)、X射线衍射仪(XRD)和傅里叶红外光谱仪(FT-IR)对活性炭的孔结构、表面结构及表面官能团特征进行了分析和表征。结果表明:狼毒根灰分含量低(质量分数仅2.95%),是高质量的活性炭原材料;当磷酸浓度为50%(wt),活化温度为400℃,浸渍比为[m(原料):m(磷酸溶液)]=1:4,活化时间为60 min时,制得的活性炭的BET比表面积为1370 m2·g-1,平均孔径3.18 nm,碘吸附值为1067 mg·g-1,亚甲基蓝吸附值为375 mg·g-1,产率高达57.41%。

关键词(KeyWords)： 瑞香狼毒;活性炭;磷酸;吸附-脱附;正交试验

Abstract:

Keywords:

基金项目(Foundation): 天津大学-青海民族大学自主创新基金(2013XZ-0076)

作者(Author): 陈杰,袁才登,李海朝,张丽娟,徐贵钰

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