Journal of Inorganic Materials ›› 2021, Vol. 36 ›› Issue (11): 1163-1170.DOI: 10.15541/jim20210109

Special Issue: 【能源环境】水体污染物去除

• RESEARCH ARTICLE • Previous Articles     Next Articles

Preparation of 2-hydroxy-1-naphthalene Functionalized SBA-15 Adsorbent for the Adsorption of Chromium(III) Ions from Aqueous Solution

GUO Yu(), JIANG Xiaoqing, WU Hongmei, XIAO Yu, WU Dafu, LIU Xin   

  1. School of Chemical and Environmental Engineering, Institute of Interdisciplinary Research, Liaoning University of Technology, Jinzhou 121001, China
  • Received:2021-02-23 Revised:2021-04-26 Published:2021-11-20 Online:2021-04-30
  • About author:GUO Yu(1981-), male, professor. E-mail:
  • Supported by:
    National Natural Science Foundation(21601075);Scientific Research Fund of Educational Department of Liaoning province(JZL201715403);Scientific Research Fund of Educational Department of Liaoning province(JZL201915402);Liaoning Revitalization Talents Program(XLTC2007171)


SBA-15 mesoporous material functionalized with 2-hydroxy-1-naphthaldehyde denoted as Q-SBA-15 was synthesized by using Schiff’s base reaction to remove Cr(III) ions from aqueous solution. A series of characterizations were performed to analyze the morphology, pore structure, element distribution and chemical properties of Q-SBA-15. The results showed that BET surface area and pore size of SBA-15 decreased after modified with 2-hydroxy- 1-naphthaldehyde, but the surface morphology and crystal structure of SBA-15 did not change significantly. To investigate the adsorption properties of Q-SBA-15 toward Cr(III) ions, effects of solution pH and ionic strength were studied. Moreover, adsorption kinetics, adsorption isotherm models, adsorption thermodynamics, and regeneration performance of Q-SBA-15 were analyzed. Adsorption process toward Cr(III) ions onto Q-SBA-15 was well followed by pseudo-second order kinetic model and Langmuir isotherm model. The maximum adsorption capacity of Q-SBA-15 was 102.3 mg/g toward Cr(III) ions under the conditions of 40 ℃ and pH 6. The Cr(III) adsorption onto Q-SBA-15 was found to be spontaneous and endothermic process. The adsorption process mainly based on the coordination chelation of Cr(III) ions with the functionalized groups on Q-SBA-15. Furthermore, Q-SBA-15 exhibited good reusability. Therefore, Q-SBA-15 can be used as a promising adsorbent for removal of Cr(III) ions from aqueous solution.

Key words: SBA-15, functionalization, adsorption, Cr(III)

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