حذف رنگ مروکسید با استفاده از نانو ذرات اکسید تیتانیم تثبیت شده بر روی کربن فعال
1393/12/23 15:35:12
نوع همکاری : همکار
کارفرما : دانشگاه آزاد اسلامی واحد امیدیه
سال طرح : 2013
مشاهده سایر طرح های آرش حکمتی جاه
This study investigated the adsorption properties of tin oxide nanoparticles loaded on activated carbon (SnO2-NP-AC) for murexide dye
adsorption capacities in the textile industry effluent treatment. The influence of variables, such as initial pH, initial murexide dye
concentration, contact time, amount of adsorbent, pH, and temperature on murexide removal and recoveries was investigated. The results
obtained in the adsorption experiments carried out at pH 2, 323K, adsorbent dosage of 0.025g, and dye concentration of 30mgL−1 show that
the interaction between the carbon materials and the dyes is enhanced with the acidity of the carbon surfaces. The experimental isotherm data
were analyzed using Langmuir, Tempkin, and Freundlich isotherm equations and it was found that Langmuir is the best model for fitting the
experimental data. The results of present model were also compared to pseudo-second-order and first-order model. Thermodynamic
parameters such as enthalpy, entropy, activation energy, and sticking probability were also calculated. It was found that the adsorption of
murexide onto SnO2-NP-AC was spontaneous and endothermic in nature.