Sorption Studies of Bromate Removal from Water by Nano-Al 2O 3

Amit Bhatnagar, Mika Sillanpää

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The feasibility of nano-Al 2O 3 for bromate removal from aqueous solution was assessed in the present study. Batch sorption experiments were performed to examine the influence of various experimental parameters such as contact time, initial bromate concentration, temperature, and pH on the sorption of bromate on nano-Al 2O 3. Kinetic data revealed that the uptake rate of bromate was rapid in the beginning and 50% adsorption was completed within 10 min and equilibrium was achieved within 120 min. Pseudo-second-order kinetic model was fitted well with the kinetics of the sorption process. The sorption potential of nano-Al 2O 3 for bromate removal was ~6.0 mg g -1. The adsorption was found to be an endothermic process and data conform to the Langmuir model. Supplemental materials are available for this article. Go to the publisher's online edition of Separation Science and Technology to view the free supplemental file.

Original languageEnglish
Pages (from-to)89-95
Number of pages7
JournalSeparation Science and Technology
Issue number1
Publication statusPublished - Jan 2012
Externally publishedYes


  • bromate sorption
  • isotherms
  • kinetics
  • nano-adsorbent
  • thermodynamic studies

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Process Chemistry and Technology
  • Filtration and Separation


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