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镧掺杂二氧化钛/沸石吸附对氨基酚的性能研究
引用本文:周晓,李析蒨,吴楠,卢利军,田秀娟,芦春梅,胡婷婷.镧掺杂二氧化钛/沸石吸附对氨基酚的性能研究[J].化学试剂,2012,34(8):733-736.
作者姓名:周晓  李析蒨  吴楠  卢利军  田秀娟  芦春梅  胡婷婷
作者单位:1. 吉林出入境检验检疫局,吉林长春,130062
2. 吉林大学中日联谊医院,吉林长春,130033
3. 空军航空大学卫生处,吉林长春,130012
摘    要:以镧掺杂二氧化钛/沸石(La3+-TiO2/沸石)及沸石作为吸附剂,研究了两者吸附对氨基酚的性能。采用可见分光光度法,考察了吸附时间、吸附剂用量、对氨基酚浓度及温度等实验条件对吸附效率的影响。在吸附时间2 h、吸附剂用量0.02 g、对氨基酚初始浓度0.5 mg/L、实验温度20℃的条件下,La3+-TiO2/沸石吸附对氨基酚的能力明显优于未处理的沸石。对氨基酚在两种吸附剂上的吸附均符合准二级动力学模型。吸附过程为吸热过程,吸附等温线复合Langmuir和Freundlich方程。

关 键 词:镧掺杂二氧化钛/沸石  对氨基酚  吸附

Adsorption of p-aminophenol with La3+-TiO2-zeolite
ZHOU Xiao , LI Xi-qian , WU Nan , LU Li-jun , TIAN Xiu-juan , LU Chun-mei , HU Ting-ting.Adsorption of p-aminophenol with La3+-TiO2-zeolite[J].Chemical Reagents,2012,34(8):733-736.
Authors:ZHOU Xiao  LI Xi-qian  WU Nan  LU Li-jun  TIAN Xiu-juan  LU Chun-mei  HU Ting-ting
Affiliation:1(1.Jilin Entry & Exit Inspection and Quarantine Bureau,Changchun 130062,China;2.Obstetrics & Gynecology,China-Japan Union Hospital,Jilin University,Changchun 130033,China;3.Health Department,Air Force University,Changchun 130022,China)
Abstract:The adsorption of p-aminophenol(PAP) with La3+-TiO2/zeolite and zeolite has been studied.The effects of experimental parameters such as adsorption time,adsorbent dose,PAP concentration,and temperature on the adsorption efficiency have been investigated.The adsorption capacity of PAP with La3+-TiO2/zeolite is evidently larger than that with untreated zeolite under the conditions of adsorption time 2 h,adsorbent dose 0.02 g,PAP concentration 0.5 mg/L,and temperature 20 ℃.The adsorption of PAP with both of the adsorbents follows the pseudo-second-order kinetics model.The adsorption process is an endothermic one,and the adsorption data can be fitted with both Langmuir and Freundlich isotherm models.
Keywords:La3+-TiO2-zeolite  p-aminophenol  adsorption
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