Multi‐responses optimization of simultaneous adsorption of methylene blue and malachite green dyes in binary aqueous system onto Ni:FeO(OH)‐NWs‐AC using experimental design: derivative spectrophotometry method. (18th December 2017)

• Record Type: Journal Article
• Authors: Dil, Ali Alipanahpour; Vafaei, Azam; Ghaedi, Abdol Mohammad; Ghaedi, Mehrorang; Dil, Ebrahim Alipanahpour
• Is Part Of: Applied organometallic chemistry. Volume 32:Number 3(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-12-18
• Subjects: derivative spectrophotometry -- optimization Ni:FeO(OH)‐NWs‐AC -- RSM -- simultaneous dye adsorption; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.4148
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : In this research, response surface methodology (RSM) approach using Central Composite Design (CCD) coupled by derivative spectrophotometry method was applied to develop mathematical model and optimize process parameters for simultaneous adsorption of methylene blue (MB) and malachite green (MG) from aqueous solution using Ni:FeO(OH)‐ NWs‐AC. The optimal conditions to adsorption of MB and MG in binary mixture solution from aqueous solution were found at pH 8.0, MB concentration 20 mg L ‐1, MG concentration 20 mg L ‐1, adsorbent dosage 0.033 g and contact time 40 min. At these conditions, high adsorption efficiency (99.39% and 100.0% for MB and MG, respectively) was achieved. Among experimental equilibrium, Langmuir isotherm model fitted well with maximum monolayer adsorption capacity of 28.6 and 29.8 mg g ‐1 for MB and MG, respectively. The adsorption kinetic data followed pseudo second‐order kinetics for MB and MG dyes. Abstract : Response surface methodology coupled by derivative spectrophotometry method was applied to develop mathematical model and optimize process parameters for simultaneous adsorption of methylene blue (MB) and malachite green (MG) from aqueous solution using Ni:FeO(OH)‐ NWs‐AC. Among experimental equilibrium, Langmuir isotherm model fitted well with maximum monolayer adsorption capacity of 28.6 and 29.8 mg g ‐1 for MB and MG, respectively. The adsorption kinetic data followed pseudo second‐order kinetics for MB and MG dyes.