title: Application of ultrasonic radiation for simultaneous removal of auramine O and safranine O by copper sulfide nanoparticles: experimental design.
abstract: In this study, copper sulfide nanoparticles loaded on activated carbon (CuS-NP-AC) were synthesized by novel, low cost and green approach and characterized using SEM and XRD. The application of this material for the simulations removal of auramine O (AO) and safranine O (SO) from aqueous solutions was investigated. The dependency of removal percentages to variables such as pH, initial dyes concentration, adsorbent dosage, sonication time and sonication temperature were studied with response surface methodology (RSM) by considering the desirability function (DF). The quadratic model between the dependent and the independent variables was built. The proposed method showed good agreement between the experimental data and predictive value, and it has been successfully employed to removal of AO and SO in aqueous media. The studied adsorbent (0.06 g of CuS-NP-AC) was capable of high percentage removal (99.8% and 99.5%) of 18 mg mL(-1) AO and SO in short time (7.0 min).
authors.affiliation: Chemistry Department, Yasouj University, Yasouj, Iran.
authors.forename: Mehrorang
authors.initials: M
authors.lastname: Ghaedi
authors.affiliation: Medicinal Plants Research Center, Yasuj University of Medical Science, Yasuj, Iran; Behbahan Khatam Alanbia University of Technology, Behbahan, Iran. Electronic address: khodadoustsaeid@yahoo.com.
authors.forename: Saeid
authors.initials: S
authors.lastname: Khodadoust
authors.affiliation: Medicinal Plants Research Center, Yasuj University of Medical Science, Yasuj, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Sadeghi
authors.affiliation: The Rural Water and Wastewater Company, Cheram, Kohgiloye va Boyer Ahmad Province, Iran.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Khodadoust
authors.affiliation: Behbahan Khatam Alanbia University of Technology, Behbahan, Iran.
authors.forename: Raham
authors.initials: R
authors.lastname: Armand
authors.affiliation: Chemistry Department, Yasouj University, Yasouj, Iran.
authors.forename: Allahdad
authors.initials: A
authors.lastname: Fatehi
mesh_terms: D000327:Adsorption; D000704:Analysis of Variance; D001576:Benzophenoneidum / Q000302:isolation & purification*; D003300:Copper / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010619:Phenazines / Q000302:isolation & purification*; D014465:Ultrasonics; D014961:X-Ray Diffraction
chemical_list: D010619:Phenazines; D001576:Benzophenoneidum; D003300:Copper; C017846:cupric sulfide; C009195:safranine T
keywords: Activated carbon; Adsorption; Central composite design; Copper sulfide nanoparticles; Dyes; Response surface methodology