Adsorption of inorganic anionic contaminants on surfactant modified minerals | Zendy

Aleksandra Vujakovic | Zendy; Aleksandra Daković | Zendy; Jovan Lemić | Zendy; Ana Radosavljević-Mihajlović | Zendy; Magdalena Tomašević-Čanović | Zendy

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Adsorption of inorganic anionic contaminants on surfactant modified minerals

Author(s) -

Aleksandra Vujakovic,

Aleksandra Daković,

Jovan Lemić,

Ana Radosavljević-Mihajlović,

Magdalena Tomašević-Čanović

Publication year - 2003

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0311833v

Subject(s) - zeolite , adsorption , chemistry , inorganic chemistry , aluminosilicate , ammonium , amine gas treating , mineral , mineral acid , alkyl , ammonium bromide , selective adsorption , salt (chemistry) , pulmonary surfactant , organic chemistry , aqueous solution , catalysis , biochemistry

Organo-mineral complexes were obtained by treatment of aluminosilicate miner- als (zeolite, bentonite and diatomaceous earth) with a primary amine (oleylamine) and an alkyl ammonium salt (stearyldimethylbenzyl ammonium chloride). The modification of the zeolite surface was carried out in two steps. The first step was treatment of the zeolite with 2 M HCl. This acid treatment of the zeolite increased its affinity for neutral molecules such as surface-active amines. The second step of the modification was the adsorption of oleyla- mine on the acid treated zeolite. Four types of organo-mineral complexes were prepared and their anion adsorption properties were compared to those of organo-zeolite. The adsorption of sulphate, bichromate and dihydrogenphosphate anions on the organo-mineral complexes was investigated. The anion adsorption measurements showed that the most efficient adsor- bent for anion water pollutants was the primary amine modified H + -form zeolite.

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