Optimization of activated carbon production from sunflower seed extracted meal: Taguchi design of experiment approach and analysis of variance

The Powder-Activated Carbon (PAC) under optimum conditions from a new low-cost precursor Date Palm Fibre (DPF) biomass through a carbonization followed by KOH activation has been synthesized by response surface methodology (RSM) combined with central composite design (CCD). The special effects of activation temperature, time, and impregnation ratio on bio-PAC Aluminum (Al3+) removal and uptake capacity were examined. The optimum conditions for synthesized bio-PAC were found to be 99.4% and 9.94 mg·g−1 for Al3+ removal and uptake capacity, respectively at activation temperature 650 °C, activation time 1h and impregnation ratio 1. The optimum bio-PAC was characterized and analyzed using FESEM, FTIR, XRD, TGA, BET, and Zeta potential. RSM-CCD experimental design was used to optimize removal and uptake capacity of Al3+ on bio-PAC. Optimum conditions were found to be at bio-PAC dose of 5 mg with pH 9.48 and contact time of 117 min. Furthermore, at optimized conditions of Al3+ removal, kinetic, and isotherm models were investigated. The results reveal the feasibility of DPF biomass to be used as a potential and cost-effective precursor for synthesized bio-PAC for Al3+ removal.

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“…The XRD is a fundamental method for evaluating the carbon staking structure [45]. XRD patterns are shown in Figure 4.…”

Section: Xrd Analysismentioning

confidence: 99%

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

et al. 2019

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“…The matrix of experiments at various SoCs and cell types is represented in Table 1. The applied design method is outlined in our previous studies with more detailed information [16,17].…”

Section: Taguchi Design Of Experimentsmentioning

confidence: 99%

“…This type of table is identified as the response table in the Taguchi design [17]. The response table presented in Table 4 consists of S/N ratio, delta, and rank.…”

Section: Taguchi Designmentioning

confidence: 99%

Analysis of electrochemical impedance spectroscopy response for commercial lithium-ion batteries: modeling of equivalent circuit elements

Moralı¹,

Erol²

2020

Turk J Chem

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Electrochemical impedance spectroscopy measurements were performed to capture the physically meaningful parameters of commercially available 18650 cylindrical and 2032 coin cells by using the equivalent circuit model. The impedance response of the batteries was systematically investigated and discussed. A detailed analysis was achieved providing a determination of influential factors on the equivalent circuit parameters. The results suggested that the cell type tested here influenced the equivalent circuit elements profoundly. Taguchi analysis indicated that state-of-charge had the highest effect on the cathodic constant-phase-element exponent. The results contribute to full electrochemical analysis that is required for battery characterization.

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“…The adsorption process was characterized on the basis of Freundlich adsorption isotherms determined at 288. 15 Freundlich isotherms were presented in a linear form and on their basis constants K and n were determined.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…In order to obtain activated carbons with a broad distribution of pore volume as a function of their radius, it is recommended to use carbons with a low degree of metamorphism and a high content of volatile parts [13]. Carbon for adsorption from solutions is obtained mainly from peat, wood, brown, hard coal and many other materials, e.g., from Peganum harmala seed (PPAC), sunflower seed, and waste biomass [14][15][16]. The basic technological operations used to obtain activated carbons are carbonization and activation.…”

Section: Introductionmentioning

confidence: 99%

Chromium (VI) Adsorption on Modified Activated Carbons

Puszkarewicz

Kaleta

2019

Applied Sciences

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The paper presents the research of adsorptive properties of activated carbons to chromium (VI) removal from the water solution. Different types of carbon were investigated: WD-ekstra (WDA), WD-ekstra modified by salt acid WD(HCl) and nitrogen acid WD(HNO3). The adsorption kinetics, influence reaction, temperature and kind of carbon were determined using static methods. The adsorption of chromium (VI) onto all activated carbons was most efficient at pH 2. The time of adsorption balance for carbon WD(HCl) was 2.5 h and for carbon WDA 4.5 h. The influence of carbon modification and temperature on the effectiveness of adsorption of hexavalent chromium was determined on the basis of the Freundlich adsorption isotherm. The research showed that the adsorption capacity of Cr(VI) increased with the increasing temperature of the solution. The most efficient adsorbent in static conditions was found on WD-ekstra modified by HCl. The adsorbent applied in dynamic conditions as the filtration bed (v = 2 m/h, time of retention TR = 420 s, initial concentration C0 = 1 mg/dm3), it removed chromium (VI) from water very effectively. Adsorption capacities after exhaustion of the bed were obtained at PeWD (HCl) = 4.35 mg/g. On the basis of executed research, chromium ions were successfully eliminated onto modified carbon WD(HCl) that makes its employment capabilities in the systems purification of water.

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Optimization of activated carbon production from sunflower seed extracted meal: Taguchi design of experiment approach and analysis of variance

Cited by 107 publications

References 57 publications

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

Analysis of electrochemical impedance spectroscopy response for commercial lithium-ion batteries: modeling of equivalent circuit elements

Chromium (VI) Adsorption on Modified Activated Carbons

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