Mesoporous silica for sorption of copper and sulphates from the environment

Oravec, Jozef and Petriláková, Aneta and Zeleňák, Vladimír and Bálintová, Magdaléna and Eštoková, Adriana (2014) Mesoporous silica for sorption of copper and sulphates from the environment. Pollack Periodica, 9 (3). pp. 43-49. ISSN 1788-1994

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Abstract

Mesoporous silica SBA-15 without and with modification of surface by grafting with aminoalcoxysilanes is prepared is the experiment. The prepared samples are characterized by adsorption/desorption of nitrogen. Results confirms the prepared materials having a specific surface area up to 846m²/g, which are improved for the capture of metals by grafting with the amino group. The sorption of Cu²⁺ cations as well as SO₄²⁻ anions from the acidic solution is investigated. The modified mesoporous silica is confirmed to have better sorption capacity than unmodified mesoporous silica.

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