Adsorption Isotherms, Kinetics and Thermodynamic studies of Vat Brown 16 Dye using ZnO and Nano-ZnO Particles

Autor:	Barakat A. F. Kamel, Dina A. Ali, Amel S. Mahdi, Athraa A. Ahmed, Kafi M. Dawood
Rok vydání:	2018
Předmět:	Exothermic reaction Langmuir Adsorption Materials science Adsorption kinetics Chemical engineering Nano Kinetics Freundlich equation Pharmacology (medical) Pharmacology Toxicology and Pharmaceutics (miscellaneous)
Zdroj:	Research Journal of Pharmacy and Technology. 11:3998
ISSN:	0974-360X 0974-3618
DOI:	10.5958/0974-360x.2018.00735.7
Popis:	In this research the adsorption of Vat Brown 16 Dye on ZnO and Nano-ZnO particles were investigated, the effect of changing the contact times, the effect of changing the initial concentrations of the dye were applied, The adsorption kinetics of dye studied and found that the reaction was ( Pseudo-second order), the effect of changing the temperatures studied to apply the adsorption isotherms ( Langmuir and freundlich) models which are calculated the isotherm constants to calculate the thermodynamic parameters ( ?H, ?G and ?S). The negative values of ?H indicate that the adsorption of Vat Brown16 Dye on ZnO and Nano-ZnO was exothermic, the positive values of ?S reflects good affinity of Vat Brown16 Dye towards ZnO and Nano-ZnO. The results have established good potentiality for Nano-ZnO particles to remove the polutant dye from the water better than ZnO particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91deb2a832ddd7fb32ad2dd951a37a0e https://doi.org/10.5958/0974-360x.2018.00735.7 Zobrazit plný text záznamu