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Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (4): 793-797.doi: 10.1007/s40242-013-2442-y

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Recycle Adsorption of Cu2+ on Amine-functionalized Mesoporous Silica Monolithic

ZHAO Da-zhou, JING Shu-bo, XU Jia-ning, YANG Hong, ZHENG Wei, SONG Tian-you, ZHANG Ping   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2012-11-19 Revised:2012-12-18 Online:2013-08-01 Published:2013-07-15
  • Contact: ZHANG Ping, SONG Tian-you E-mail:zhangping@jlu.edu.cn;tysong@jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos. 50573030 and 21171065).

Abstract:

3-Aminopropyltriethoxysilane functionalized worm-like mesoporous silica monolithic(WMSM-NH2) was prepared and used as a new regenerable adsorbent for the removal of Cu2+ ions. The analysis results show that the WMSM-NH2 monolithic had a high efficiency value of 99.3% for Cu2+ remediation when the Cu2+ solution was at an initial concentration of 10.32 mg/L. The regeneration study of the WMSM-NH2 monolithic presented that the adsorption efficiency of 89.0% was remained and a mass of 92.0% was left after seven adsorption-desorption cycles were executed. The monolithic material with high resistance to the acid and good mechanical stability can facilitate the operations of adsorption and regeneration of the adsorbent.

Key words: Amine-functionalized mesoporous silica monolithic(WMSM-NH2), Cu2+ removal, Multiple cycle, Adsorption, Easy operation