Optimization by Response Surface Methodology of Copper-Pillared Clay Catalysts Efficiency for the CWPO of 4-Nitrophenol

Baragh, Fidâ; Draoui, Khalid; Bali, Brahim El; Agunaou, Mahfoud; Kherbeche, Abdelhak

doi:10.1007/978-3-030-11881-5_16

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…We have adopted the response surface methodology through Box-Behnken design for investigating the statistic analyze and optimizing the impact of the three factors (H 2 O 2 dosage, impregnated copper (%) and temperature) screened concerning the degradation of CAF using the local clay as a support. The number of experiments used in this study are 17, calculated using the following formula (6), where k ¼ 3 is the number of the studied factors and C 0 ¼ 5 is the number of central points (numbers 13-17), the (%) degradation of CAF in this study was observed in the range of 40-86 % (Table 4) [51]. In addition, the regression model was observed in terms of the three factors which are expressed through the following second-order polynomial Eq.…”

Section: Discussionmentioning

confidence: 99%

“…However, the removal efficiency decreases if the temperature continued to rise, because the temperature was too high making the faster decomposition of H 2 O 2 , and the utilization rate of H 2 O 2 was greatly reduced according to Eq. (8) [51,52].…”

Section: Response Surface Plots Of Effect Of the Three Parameters Stumentioning

confidence: 99%

“…However, once the initial concentration of H 2 O 2 is higher than 0.164 mol.L À1 , the removal efficiency drops down. This might be ascribed to the scavenging effect of excess H 2 O 2 on the active hydroxyl radical HO to produce HO 2 less active as illustrated by (equation: 9, 10, 11) [51,52].…”

Section: Response Surface Plots Of Effect Of the Three Parameters Stumentioning

confidence: 99%

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Copper nickel co-impregnation of Moroccan yellow clay as promising catalysts for the catalytic wet peroxide oxidation of caffeine

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Copper and nickel were incorporated into the prepared yellow clay (YC) using one of the most widely used methods, for the preparation of heterogeneous catalysts, which is the wet impregnation method (IPM) and its application as a heterogeneous catalyst for Caffeine (CAF). Several catalysts Cooper Nickel's Catalysts (Cu-Ni) were applied to the yellow clay with different weight ratio of Cu and Ni, in order to explore the role of both metals during the catalytic oxidation process CWPO. Furthermore, the CuNi-YC catalysts, were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), Langmuir's surface area, Brunauer Emmett Teller (BET), scanning electron microscope (SEM) and inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES), so as to get a better understanding concerning the catalytic activity's behavior of CuNi-YC catalysts. The optimization of the catalytic activity's effects on the different weight ratios of Cu and Ni, temperature and H 2 O 2 were also examined, using Box-Behnken Response Surface Methodology RSM to enhance the CAF conversion. The analysis of variances (ANOVA) demonstrates that Box-Behnken model was valid and the CAF conversion reached 86.16%, when H 2 O 2 dosage was equal to 0.15 mol.L À1 , copper impregnated (10%) and temperature value attained 60 C. In addition, the regeneration of catalyst's cycles under the optimum conditions, indicated the higher stability up to four cycles without a considerable reduction in its conversion performance.

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Section: Discussionmentioning

confidence: 99%

Section: Response Surface Plots Of Effect Of the Three Parameters Stumentioning

confidence: 99%

Section: Response Surface Plots Of Effect Of the Three Parameters Stumentioning

confidence: 99%

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Copper nickel co-impregnation of Moroccan yellow clay as promising catalysts for the catalytic wet peroxide oxidation of caffeine

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Optimization of methylene blue removal from aqueous solutions using activated carbon derived from coffee ground pyrolysis: A response surface methodology (RSM) approach for natural and cost-effective adsorption

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Optimization by Response Surface Methodology of Copper-Pillared Clay Catalysts Efficiency for the CWPO of 4-Nitrophenol

Cited by 4 publications

References 40 publications

Copper nickel co-impregnation of Moroccan yellow clay as promising catalysts for the catalytic wet peroxide oxidation of caffeine

Copper nickel co-impregnation of Moroccan yellow clay as promising catalysts for the catalytic wet peroxide oxidation of caffeine

Organic Reactions Using Clay and Clay-Supported Catalysts: A Survey of Recent Literature

Optimization of methylene blue removal from aqueous solutions using activated carbon derived from coffee ground pyrolysis: A response surface methodology (RSM) approach for natural and cost-effective adsorption

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