Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (11): 1329-1335.DOI: 10.11944/j.issn.1000-0518.2017.11.160507

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Adsorption of p-Cresol on X-Type Gemini Surfactant-modified Hydrotalcite-like Nanocomposite

BI Haoyua,LIANG Yaqinb,LI Yanb*()   

  1. aDepartment of Biomedical Engineering,Changzhi Medical College,Changzhi,Shangxi 046000,China
    bDepartment of Chemistry,Changzhi University,Changzhi,Shanxi 046011,China
  • Received:2016-12-13 Accepted:2017-02-27 Online:2017-11-08 Published:2017-11-08
  • Contact: LI Yan
  • Supported by:
    Supported by the Natural Science Foundation of Shanxi Province(No.2013011040-8), the Teaching Reform Project of Colleges and Universities in Shanxi Province(No.J2013104)

Abstract:

Traditional surfactant-hydrotalcite-like(HTlc) nanocomposites can effectively adsorb the main organic pollutants, such as phenolic pollutants, in water. With high performance Gemini surfactant instead of traditional surfactant, an improved removal efficiency of surfactant-HTlc nanocomposites for organic pollutants is expected. In this paper, Gemini surfactant(MXC6)-HTlc nanocomposite was prepared by delamination/reassembling method. The material was characterised by powder X-ray diffraction, Fourier transform infrared spectroscopy, specific surface area, atomic absorption spectrometry, and elemental analysis. The results show that MXC6 anions are reassembled in the layers of HTlc. The adsorption behavior of p-cresol on MXC6-HTlc nanocomposite was then investigated. The adsorption kinetics and adsorption isotherm of p-cresol on MXC6-HTlc nanocomposite well fitted pseudo-first order kinetics and Linear equation, respectively. These results indicate that the adsorption amount of p-cresol on MXC6-HTlc nanocomposite, is much higher than that on HTlc, and is decreased by increasing either pH(5.00~10.00) or temperature. The adsorption mechanism was discussed in detail. It is confirmed that MXC6-HTlc nanocomposite can be as a new kind of highly effective adsorbent for phenolic pollution from water.

Key words: X-type Gemini surfactant, hydrotalcite-like compound, delamination/reassembling, p-cresol, adsorption