Chemosphere. 2005 Jan;58(1):109-14.

Adsorption of nitrosamines in acidic solution by zeolites.

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Department of Chemistry, Nanjing University, Nanjing 210093, China.

Abstract

Adsorption of N-nitrosopyrrolidine (NPYR) by zeolite NaZSM-5, Hbeta and NaZSM-11 in acidic solution with pH of 1 was investigated. The NPYR uptake process obeyed the first-rate Lagegren kinetic equation describing adsorption, and the equilibrium data were fitted to the Langmuir or Freundlich adsorption equation. Zeolite ZSM-5, Hbeta and NaZSM-11 possessed a higher adsorption capacity than amorphous silica or ordered mesoporous siliceous SBA-15, implying their potential application for adsorption of nitrosamines in gastric juice to anti-cancer.

PMID:: 15522339; [PubMed - indexed for MEDLINE]

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