Removal of arsenate from aqueous solution by adsorption onto titanium dioxide nanoparticles.

@article{Jzquel2006RemovalOA,
  title={Removal of arsenate from aqueous solution by adsorption onto titanium dioxide nanoparticles.},
  author={H J{\'e}z{\'e}quel and K. H. Chu},
  journal={Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering},
  year={2006},
  volume={41 8},
  pages={1519-28}
}
Titanium dioxide (TiO2) was investigated for the removal of pentavalent arsenate from aqueous solution. Kinetic results revealed that arsenate adsorption was almost instantaneous. The extent of arsenate adsorption decreased with increasing pH owing to the decrease of positively charged binding sites on the TiO2 surface. Adsorption isotherms measured at pH 3 and 7 generally followed the Langmuir model. The maximum uptake capacity ranged from 8 mg g-1 at pH 3 to 2.7 mg g-1 at pH 7. Addition of… CONTINUE READING

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