用糠醛制得的活性炭去除水溶液中的汞（II）
Removal of mercury (II) from aqueous solution by activated carbon obtained from furfural.
作者信息
Yardim M F, Budinova T, Ekinci E, Petrov N, Razvigorova M, Minkova V
机构信息
Department of Chemical Engineering, Istanbul Technical University, Ayazaga, Istanbul 80626, Turkey.
出版信息
Chemosphere. 2003 Aug;52(5):835-41. doi: 10.1016/S0045-6535(03)00267-4.
The adsorption of Hg(II) from aqueous solution at 293 K by activated carbon obtained from furfural is studied. The carbon is prepared by polymerization of furfural following carbonization and activation of the obtained polymer material with water vapor at 800 degrees C. Adsorption studies of Hg(II) are carried out varying some conditions: treatment time, metal ion concentration, adsorbent amount and pH. It is determined that Hg(II) adsorption follows both Langmuir and Freundlich isotherms. The adsorption capacity of the carbon is 174 mg/g. It is determined that Hg(II) uptake increases with increasing pH. Desorption studies are performed with hot water. The percent recovery of Hg(II) is 6%.
研究了糠醛基活性炭在293K下对水溶液中Hg(II)的吸附性能。该活性炭通过糠醛聚合制备，所得聚合物材料在800℃下经碳化和水蒸气活化处理。通过改变处理时间、金属离子浓度、吸附剂用量和pH值等条件对Hg(II)进行吸附研究。结果表明，Hg(II)的吸附符合Langmuir和Freundlich等温线。该活性炭的吸附容量为174mg/g。研究发现，Hg(II)的吸附量随pH值升高而增加。用热水进行解吸研究，Hg(II)的回收率为6%。
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