Nanocomposites and nanomaterials

Application of the mixed oxide for the removal of C.I. Acid Yellow 219 from aqueous solutions 
Polska-Adach E.1, Wawrzkiewicz M.1, Wiśniewska M.2 Goncharuk O. 3
1 Department of Inorganic Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 2, 20 031 Lublin, Poland, ewelina.polskaadach@poczta.umcs.lublin.pl

2 Department of Radiochemistry and Colloid Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University , M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland

3 O.O. Chuiko Institute of Surface Chemistry, National Academy of Science of Ukraine, 17 General Naumov Str., 03164 Kiev, Ukraine

Dyes and other substances such as salts, surfactants, oxidants, reducers, and many others present in textile wastewaters can be a significant source of environmental pollution. They affect negatively not only organisms living there, but also human health. For this reason, it is very important to develop accurate and precise methods for their removal. One of the most effective techniques used for this purpose is adsorption on various types of sorbents, including mineral sorbents.
The aim of the work was to evaluate the effectiveness of the mixed oxide in the sorption of Acid Yellow 219 dye from aqueous solutions. The influence of selected parameters was examined (phase contact time, initial adsorbate concentration etc.) on the dye uptake. In addition, kinetic and equilibrium parameters were determined based on the most popular models. 

1.	K. Maciejewska-Nowak, Ochrona Środowiska,1986, 488/4, 17.
2.	K. Majewska-Nowak, Usuwanie barwników ze ścieków, PZITS Wrocław (1986) 17-20.