Application of central composite face-centered design and response surface methodology for the optimization of electro-Fenton decolorization of Azure B dye

Rosales, Emílio; Sanromán, M.A.; Pazos, Mercedes Suárez

doi:10.1007/s11356-011-0668-0

Cited by 81 publications

(22 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The closeness of the responses of these 6 experiments could be a sign of the accuracy of the experiment process. 32 The determination coefficient (R 2 ) quantitatively evaluated the correlation between the experimental data and the predicted responses. The obtained polynomial model is shown as follows: Statistical testing of this model was implemented by analysis of variance (ANOVA) and the results for the coded variable levels are given in Table IV.…”

Section: Optimization By Cdd Under Rsmmentioning

confidence: 99%

See 1 more Smart Citation

Kinetics and optimization on discoloration of dyeing wastewater by schorl-catalyzed fenton-like reaction

Liu

et al. 2014

J Serb Chem Soc

View full text Add to dashboard Cite

The kinetics and optimization of the decoloration of an active commercial dye, argazol blue BFBR (ABB), by a heterogeneous Fenton-like reaction catalyzed by natural schorl were investigated in this study. The kinetic investigations revealed that the first-order kinetic model was more favorable to describe the decoloration of ABB under different reaction conditions than the second-order and Behnajady-Modirshahla-Ghanbery models. The relationship between the reaction rate constant k and reaction temperature T followed the Arrhenius Equation, with an apparent activation energy E a of 51.31 kJ·mol -1 . The central composite design under the response surface methodology was employed for the experimental design and optimization of the ABB decoloration process. The significance of a second order polynomial model for predicting the optimal values of ABB decoloration was evaluated by the analysis of variance and 3D response surface plots for the interactions between the two variables were constructed. Then, the optimum conditions were determined.

show abstract

Section: Optimization By Cdd Under Rsmmentioning

confidence: 99%

“…32 The determination coefficient (R 2 ) quantitatively evaluated the correlation between the experimental data and the predicted responses. 32 In this study, X 1 , X 2 , X 3 , X 4 , X 1 X 3 , X 1 X 4 , X 1 2 , X 3 2 and X 4 2 were significant model terms. (8)) were compared and listed in Table III.…”

Section: Optimization By Cdd Under Rsmmentioning

confidence: 99%

Kinetics and optimization on discoloration of dyeing wastewater by schorl-catalyzed fenton-like reaction

Liu

et al. 2014

J Serb Chem Soc

View full text Add to dashboard Cite

show abstract

“…2b depicts the diagram of the residuals based on the predicted response percent efficiency. The Pareto chart is used widely in quality control settings to identify critical factors leading to failure or defects in a process (Rosales et al, 2012). In this chart, there is a vertical line that represents a 95% test for significance effect.…”

Section: Ccd Results For Adsorption Of the Porphyrinmentioning

confidence: 99%

Application of response surface methodology for ultrasound-assisted rapid ‎adsorption of meso-tetrakis(4-sulfonatophenyl) porphyrin by copper ‎nanowire-loaded in activated carbon: Characterization, equilibrium and ‎kinetic modeling

2015

Global NEST Journal

View full text Add to dashboard Cite

. (2015), Application of response surface methodology for ultrasound-assisted rapid adsorption of meso-tetrakis(4-sulfonatophenyl) porphyrin by copper nanowireloaded in activated carbon: characterization, equilibrium and kinetic modeling, Global NEST Journal, 17(4), 756-770. APPLICATION OF RESPONSE SURFACE METHODOLOGY FOR ULTRASOUND-ASSISTED RAPID ADSORPTION OF MESO-TETRAKIS(4-SULFONATOPHENYL ABSTRACTThe combined ultrasonic assisted/nanoparticle based procedure was described for an economical and rapid removal of meso-tetrakis (4-sulfonatophenyl) porphyrin (TSPP) by copper nanowires loaded on activated carbon (Cu-NW-AC). The synthesized Cu-NW-AC was investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Response surface methodology (RSM) combined with central composite design (CCD) give useful information about the individual contribution and interaction amoung variables correspound to above adsorption. In CCD, the effects of variables in the following range, pH (X1: 5.0-7.0), adsorbent dosage (X2: 0.021-0.051 g), initial TSPP concentration (X3: 3-15 mg l -1) and ultrasound time (X4: 2-10 min.) was investigated to obtain maximum adsorption effeciency. The experimental data were subsequently fitted to a second-order polynomial equation using multiple regression analysis by appropriate statistical methods. According to the results, the optimum adsorption conditions were found to be Cu-NW-AC = 0.04 g, TSPP = 6 mg l -1 , pH = 5.5 and ultrasound time = 8.0 min. The experimental extraction yield under optimal conditions was found to be 97.60% which confirmed by three replicate at optimum conditions leading to removal percentage of 98.16%. The adsorption equilibrium isotherm and kinetic models investigation revealed the suitability of Langmuir isotherm and pseudo-second-order model for best predication of experimental data. Maximum monolayer capacity (Qm) calculated from Langmuir model was found to be 26.385 mg g -1 .

show abstract

“…It requires much fewer experiments than a full-factorial design, enables the study of the effects of each factor (X) and their interactions over the responses (Y) and can be used for prediction and optimization of responses [10]. A CCFD contains an embedded factorial augmented with axial points that allow curvature estimation [11]. Generation and evaluation of the experimental design was carried out using the Design Expert Ò software (Version 7, Stat-Ease Inc., Minneapolis, MN).…”

Section: Experimental Designmentioning

confidence: 99%

Hot-melts in buccoadhesive patches: An approach for bioavailability enhancement of highly-metabolized drugs with short elimination half-life

Mahrouk

El‐Gazayerly

Aboelwafa

et al. 2014

European Journal of Pharmaceutics and Biopharmaceutics

View full text Add to dashboard Cite

Application of central composite face-centered design and response surface methodology for the optimization of electro-Fenton decolorization of Azure B dye

Abstract: Optimum conditions suggested by the second-order polynomial regression model for attaining maximum decolorization were dye concentration 4.83 mg/L, electrode surface area 15 cm(2), voltage 14.19 V, and treatment time of 34.58 min.

Cited by 81 publications

References 32 publications

Kinetics and optimization on discoloration of dyeing wastewater by schorl-catalyzed fenton-like reaction

Kinetics and optimization on discoloration of dyeing wastewater by schorl-catalyzed fenton-like reaction

Application of response surface methodology for ultrasound-assisted rapid ‎adsorption of meso-tetrakis(4-sulfonatophenyl) porphyrin by copper ‎nanowire-loaded in activated carbon: Characterization, equilibrium and ‎kinetic modeling

Hot-melts in buccoadhesive patches: An approach for bioavailability enhancement of highly-metabolized drugs with short elimination half-life

Contact Info

Product

Resources

About