Cotton Fiber/ZrO2, A New Material for Adsorption of Cr(VI) Ions in Water

Autor:	Alfredo A. Muxel, Rení Ventura da Silva Alfaya, Antonio Alberto da Silva Alfaya, Flaveli Aparecida de Souza Almeida, Sonia Maria Nobre Gimenez
Rok vydání:	2011
Předmět:	Langmuir Zirconium Ion exchange Chemistry Kinetics Inorganic chemistry chemistry.chemical_element Pollution Ion Chromium Adsorption Environmental Chemistry Fiber Water Science and Technology
Zdroj:	CLEAN - Soil, Air, Water. 39:289-295
ISSN:	1863-0650
Popis:	The natural cotton fiber was used to synthesize an anion exchange, containing ZrO 2 film on its surface, NCFZC (natural cotton fiber/ZrO 2 composite). This anion exchanger was produced by the reaction of the zirconium oxychloride and hydroxyl groups on surface of the natural cotton fiber. The material was used for Cr(VI) ions adsorption studies. Adsorption equilibrium time and optimum pH for Cr(VI) adsorption were found to be 6 h and 4.0, respectively. The Langmuir and Temkin isotherms were used to models adsorption equilibrium data. The adsorption capacity of NCFZC was found to be 1.33 mmol/g. Kinetic studies showed that the rate of adsorption of Cr(VI) on NCFZC obeyed a pseudo-second-order kinetic model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c4431d179a250784b9918b409d09c5f6 https://doi.org/10.1002/clen.201000165 Zobrazit plný text záznamu Plný text