Kinetics and equilibrium studies on removal of methylene blue and methyl orange by adsorption onto activated carbon prepared from date pits-A comparative study

Autor:	Khaled Hosni, Noureddine Hamdi, Khaled Mahmoudi, Ezzeddine Srasra
Rok vydání:	2014
Předmět:	Langmuir Chemistry General Chemical Engineering Kinetics Inorganic chemistry chemistry.chemical_element General Chemistry chemistry.chemical_compound Adsorption medicine Methyl orange Freundlich equation Carbon Methylene blue Activated carbon medicine.drug
Zdroj:	Korean Journal of Chemical Engineering. 32:274-283
ISSN:	1975-7220 0256-1115
DOI:	10.1007/s11814-014-0216-y
Popis:	The adsorption of Methylene blue and Methyl orange by date pits carbon was carried out by varying parameters such as agitation time, pH and dye concentration. Equilibrium adsorption data followed both Langmuir and Freundlich isotherms. Adsorption followed second-order rate kinetics. The adsorption capacity was found to be 434 and 455mg of methyl orange and methylene blue, respectively, per g of the date pits carbon. Acidic pH is favorable for the adsorption of methyl orange against a basic medium which is favorable for the adsorption of MB. An opposite result was found for the methylene blue adsorption.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3970901211e0c4d84484afdb6c85921f https://doi.org/10.1007/s11814-014-0216-y Zobrazit plný text záznamu Full text from SpringerLink