Adsorption Evaluation of Food and Industrial Dyes on Nano copper oxide
الموضوعات : International Journal of Heterocyclic ChemistryMohammad Hossein Farjam 1 , Mohammad Kazem Mohammadi 2 , Ali Mehraki 3
1 - Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran
2 - Faculty of Science, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
3 - Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran
الکلمات المفتاحية: absorption, CuO nano particles, Erythrosine dye,
ملخص المقالة :
In This applicable research, investigating absorption of process ofErythrosine dye on Copper oxide Nano particles Adsorbent was studied. First, prepared dyeconcentrations of 6, 8 and 12 mg L-1 and then effects of parameters such as concentrations ofinitial dye, time and pH on dye absorption efficiency were investigated.The dyeconcentrations in different samples were measured via spectrophotometer (505.6 nm for dyeErythrosine wavelength).The results of absorption studies showed that Erythrosine absorption or removal rateswould increase with decreasing the primary dye concentration, increasing reaction time , anddecreasing pH on the basis of the results, copper oxide Nano particles can the absorbErythrosine dye appropriately and efficiency of the process is higher in acidic pH for dyeErythrosine. The maximum dye removal of 93.68 % could be achieved at initial pH 2 usingadsorbent dosage of 0.233gr in 50 ml (12 mg L-1 dye concentration) and agitation rate of 180rpm. Effect of different parameters as kinetic parameters, were calculated pseudo-First andsecond-order kinetic, the Langmuir and Freundlich models Isotherm for absorb of this dye onadsorbent. this results showed that second-order kinetic adherence possessing regressioncoefficient of R2 ≥ 0.999, absorption or removal of Erythrosine on Copper oxide nanoparticles and different parameters for investigating of process rate of absorption in to be thisexperience. Equilibrium data fitted well with the Langmuir model for dye with adsorbent.
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