Water Science and Technology 2013-01-01

Removal of aniline and phenol from water using raw and aluminum hydroxide-modified diatomite.

C D Wu, J Y Zhang, L Wang, M H He

文献索引：Water Sci. Technol. 67(7) , 1620-6, (2013)

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摘要

The feasibility of using raw diatomite and aluminum hydroxide-modified diatomite (Al-diatomite) for removal of aniline and phenol from water was investigated. Their physicochemical characteristics such as pHsolution, point of zero charge (pHPZC), surface area, Fourier transform infrared (FT-IR) and scanning electron microscopy was determined. After the raw diatomite was modified, the surface area of Al-diatomite increases from 26.67 to 82.65 m(2) g(-1). The pHPZC and pHsolution (10%) occurred around pH 5.2 and pH 8.6, respectively. The removal rates of aniline and phenol on diatomite and Al-diatomite decreased with increasing solution pH, while surface charge density decreased. The adsorption of aniline and phenol on diatomite presented a good fit to the Langmuir and Freundlich models, but the models are not fit to forecast the adsorption of aniline and phenol on Al-diatomite. The study indicated that electrostatic interaction was a dominating mechanism of aniline and phenol sorption onto Al-diatomite.

相关化合物

  • 苯胺盐酸盐
  • 苯酚
  • <4-13C>Aniline-4-...
  • Celite 硅藻土 545
  • 苯胺
  • 氢氧化铝
  • 苯胺-1-13C
  • 硅藻土
  • 苯胺-15N
  • 苯胺硫酸盐(2:1)

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