Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2011, Vol. 32 ›› Issue (7): 1036-1040.DOI: -

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Adsorption property and mechanism of ammonium sulfamate-bacterial cellulose to Pb2+

Lu, Min (1); Guan, Xiao-Hui (2); Wei, De-Zhou (1); Li, Yan-Ying (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; (2) School of Chemical Engineering, Northeast Dianli University, Jilin 132012, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Lu, M.
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Abstract: The new adsorbent of ammonium sulfamate-bacterial cellulose (ASBC) was prepared through chemical modification of bacterial cellulose. ASBC was used for removing Pb2+ in order to study the adsorption property and mechanism of ASBC. The results showed that pH is a very important parameter to the adsorbed efficiency. The adsorption rate can be well fitted by pseudo-second rate model, the adsorption isotherm can be described by Langmuir model and they have good linear relationship. Typical single-molecule layer adsorption of ASBC for Pb2+ can be described. And the electrostatic attraction and chelating effect are one of main mechanisms of adsorption.

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