title: Ultrasonic assisted removal of sunset yellow from aqueous solution by zinc hydroxide nanoparticle loaded activated carbon: Optimized experimental design.
abstract: The efficiency of zinc hydroxide nanoparticle loaded on activated carbon (Zn(OH)2-NP-AC) in the removal of sunset yellow from aqueous solutions using ultrasonic-assisted adsorption method was investigated. This nanomaterial was characterized using different techniques such as SEM, XRD and UV-vis spectrophotometer. A central composite design (CCD) was used for the optimization of significant factors using response surface methodology (RSM). Under the best conditions (5.2 min of sonication time, pH3, 0.023 g of adsorbent and 30 mg L(-1) of SY), Langmuir model was fitting the experimental equilibrium data well. The small amount of proposed adsorbent (0.023 g) is applicable for the successful removal of SY (>97%) in short time (5 min) with high adsorption capacity (83-114 mg g(-1)).
authors.affiliation: Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran. Electronic address: mostafaroosta.mr@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Roosta
authors.affiliation: Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Ghaedi
authors.affiliation: Department of Chemistry, University of Ilam, P.O. Box 65315-516, Ilam, Iran.
authors.forename: R
authors.initials: R
authors.lastname: Sahraei
authors.affiliation: Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India.
authors.forename: M K
authors.initials: MK
authors.lastname: Purkait
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D006878:Hydroxides / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D014465:Ultrasonics; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D006878:Hydroxides; D017967:Zinc Compounds; D002606:Charcoal; C052745:zinc hydroxide
keywords: Adsorption; Central composite design; Response surface methodology; Sunset yellow; Zinc hydroxide nanoparticles loaded on activated carbon