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Triclosan as model system for the adsorption on recycled adsorbent materials

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Sharipova,  Altynay
Reinhard Miller, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Tleuova,  Aiym
Reinhard Miller, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Schenderlein,  Matthias
Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Miller,  Reinhard
Reinhard Miller, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Sharipova, A., Aidarova, S. B., Bekturganova, N. E., Tleuova, A., Schenderlein, M., Lygina, O., et al. (2016). Triclosan as model system for the adsorption on recycled adsorbent materials. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 505, 193-196. doi:10.1016/j.colsurfa.2016.04.049.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-41B7-E
Abstract
The adsorption of triclosan as model system was studied to qualify activated carbon sorbents recycled from gas masks (civilian gas mask GP5). The triclosan equilibrium concentration was measured spectrophotometrically, the morphology of the activated carbon characterized by scanning electron microscopy, and the amount of the adsorbed triclosan on the activated carbon quantified by a mass balance method. Experimental isotherms were fitted by Langmuir, Freundlich and Sips adsorption models. It was obtained that the contact time is a crucial sorption parameter that provides information on the optimum adsorption efficiency. It was shown that the maximum efficiency of \GP5\ (88) is obtained after 10 days of adsorption at a maximal concentration of triclosan and carbon loading 1 mg/l. No significant adsorption efficiency differences were measured after 5 and 10 days of adsorption. The non-linear Sips isotherm, a combined Freundlich–Langmuir model, provides suitable fitting results. The observed remarkable adsorption capacity of activated carbon (GP5) towards triclosan adsorption (∼85 mg/g) makes it a viable solution for wastewater treatment.