Optimization of Sibipiruna activated carbon preparation by simplex-centroid mixture design for simultaneous adsorption of rhodamine B and metformin

Spessato, Lucas; Duarte, Vitor Anthony; Viero, Patrícia; Zanella, Heloisa G.; Fonseca, Jhessica M.; Arroyo, Pedro Augusto; Almeida, Vitor C.

doi:10.1016/j.jhazmat.2021.125166

Cited by 58 publications

(11 citation statements)

References 75 publications

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“…At the same time, the demand for Rhodamine B (RhB) conversion into harmless chemicals has also started growing in the recent years for a sustainable recycling of industrial wastewaters, due to the increased use of xanthene-derived dyes in food, paper, textile and leather industry. The undesired presence of RhB (see Scheme 2) in waters and food represents a serious threat for the human health due to its ability of causing injury to human skin, eyes, respiratory system, besides being potentially carcinogenic and neurotoxic [42,43].…”

Section: Introductionmentioning

confidence: 99%

Effects of anatase TiO2 morphology and surface fluorination on environmentally relevant photocatalytic reduction and oxidation reactions

Dozzi

Montalbano

Marra

et al. 2021

Materials Today Chemistry

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Section: Introductionmentioning

confidence: 99%

Effects of anatase TiO2 morphology and surface fluorination on environmentally relevant photocatalytic reduction and oxidation reactions

Dozzi

Montalbano

Marra

et al. 2021

Materials Today Chemistry

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“…Most synthetic dyes are dangerous, nonbiodegradable substances with potential harmful impacts on human beings and the environment. , Among the synthetic dyes, rhodamine B (RB) was extensively used in the paper printing, leather dyeing, steel, textile, paint, and food industries . It was classified as a carcinogenic cationic xanthine dye that has high solubility properties (15.0 g L –1 at 20 C). − The existence of RB dye in the water supplies and the aquatic environments displays strong toxicity (genotoxic and neurotoxic) on both humans and animals, in addition to several serious risks such as respiratory disorders, congestion of the skin, and gastrointestinal injury. ,, As a result, the elimination of RB and other synthetic dyes from water using novel and low-cost operations was prioritized at later intervals. , …”

Section: Introductionmentioning

confidence: 99%

“…11−13 The existence of RB dye in the water supplies and the aquatic environments displays strong toxicity (genotoxic and neurotoxic) on both humans and animals, in addition to several serious risks such as respiratory disorders, congestion of the skin, and gastrointestinal injury. 10,13,14 As a result, the elimination of RB and other synthetic dyes from water using novel and low-cost operations was prioritized at later intervals. 13,14 This article is licensed under CC-BY-NC-ND 4 Adsorption has been suggested as an effective technique for removing soluble dyes owing to its facile use, excellent effectiveness, recycling potential, large-scale practical application, and low cost of manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Advanced Equilibrium Studies for the Synergetic Impact of Polyaniline on the Adsorption of Rhodamine B Dye by Polyaniline/Coal Composite

Adel Sayed,

Mohamed,

Ahmed

et al. 2023

ACS Omega

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The synergetic improvement effect of the polyaniline (PANI) hybridization process on the adsorption of rhodamine B dye (RB) by PANI/coal hybrid material (PANI/C) has been evaluated using both traditional equilibrium modeling and advanced isotherm investigations. The composite was prepared by polymerizing polyaniline in the presence of coal fractions with a surface area of 27.7 m 2 /g. The PANI/C hybrid has an improved capacity to adsorb RB dye (423.5 mg/g) in comparison to coal particles (254.3 mg/g). The maintained increase in the elimination properties of PANI/C has been illustrated using the steric characteristics of active site density (Nm) as well as the total number of adsorbed RB on a single active site (n). However, the incorporation of PANI did not yield any substantial impact on the existing active sites’ quantity, but the hybridization processes greatly influenced the selectivity and affinity of each active site, in addition to the aggregation characteristics of the dye as it interacts with the composite’s surface. Whereas raw coal can only adsorb three molecules of RB, each active site throughout the PANI/C surface can adsorb approximately eight RB molecules. This is also evidence of RB dye adsorption in a vertical arrangement, which involves multimolecular processes. The Gaussian energy (4.01–5.59 kJ/mol) and adsorption energy (−4.34–4.68 kJ/mol) revealed the controllable impact of physical mechanisms. These mechanisms may include van der Waals forces, dipole–dipole interactions, and hydrogen bonds (<30 kJ/mol). The thermodynamic functions, such as enthalpy, internal energy, and entropy, that have been assessed provide evidence supporting the exothermic and spontaneous nature of the RB uptake processes by PANI/C.

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“…Metformin (MET) and lamotrigine (LAM), two emerging bio‐recalcitrant pollutants, were used as target pollutants for the study. MET is used for treating type 2 diabetes and used to control the glycaemic index worldwide 15–17 . Due to the low metabolization rate, it has been detected in water bodies, causing endocrine disorders in aquatic animals 18–20 .…”

Section: Introductionmentioning

confidence: 99%

“…MET is used for treating type 2 diabetes and used to control the glycaemic index worldwide. [15][16][17] Due to the low metabolization rate, it has been detected in water bodies, causing endocrine disorders in aquatic animals. [18][19][20] LAM is a new-generation classified anti-epileptic drug used for managing refractory partial seizures in patients with or without secondary generalization.…”

Section: Introductionmentioning

confidence: 99%

Apparent and true mineralization during combined electro‐oxidation and electro‐coagulation on stainless steel anode

Meena

Ghatak

2023

Asia-Pacific J Chem Eng

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Present study is a novel attempt to experimentally verify that electrochemical treatment of organic pollutants on stainless steel (SS) anode is a combination of electro‐oxidation (EO) and electro‐coagulation (EC) with quantitative estimation of individual contributions of the two mechanisms. Target organic pollutants, metformin HCl (MET‐HCl) and lamotrigine (LAM), were electrochemically treated with SS anode for this purpose. Experiments were designed using central composite rotatable design (CCRD) to assess the effect of current density (CD) and supporting electrolyte concentration (SEC) as independent process parameters. Under all conditions, the process was experimentally verified to be a combination of EO and EC. For MET‐HCl, true mineralization (TM) as a result of EO contribution varied between 50.13% and 66.64%. EO contribution and resulting TM for LAM ranged from 37.5% to 61.83%. EC contributed 30.6%–31.84% towards MET‐HCl remediation causing the TOC to be transferred from the liquid to the sludge produced (SP). EC contribution was 23.68%–35.89% for LAM remediation. Thus, apparent mineralization (AM), the sum of EO and EC contributions, ranged from 80.63% to 97.79% for MET‐HCl and 61.18% to 96.82% for LAM.Process parameters were statistically optimized using response surface methodology (RSM) to simultaneously maximize TM and AM with minimal energy consumption and maximal current efficiency. The optimized conditions were 0.83 mA/cm2 CD and 86.66 ppm SEC for MET‐HCl. The corresponding values were 1.31 mA/cm2 CD and 79.51 ppm SEC for LAM.

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Optimization of Sibipiruna activated carbon preparation by simplex-centroid mixture design for simultaneous adsorption of rhodamine B and metformin

Cited by 58 publications

References 75 publications

Effects of anatase TiO2 morphology and surface fluorination on environmentally relevant photocatalytic reduction and oxidation reactions

Effects of anatase TiO2 morphology and surface fluorination on environmentally relevant photocatalytic reduction and oxidation reactions

Advanced Equilibrium Studies for the Synergetic Impact of Polyaniline on the Adsorption of Rhodamine B Dye by Polyaniline/Coal Composite

Apparent and true mineralization during combined electro‐oxidation and electro‐coagulation on stainless steel anode

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