Optimization, equilibrium and kinetic studies on ibuprofen removal onto microwave assisted - activated Aegle marmelos correa fruit shell

Sivarajasekar, N.; Mohanraj, N.; Balasubramani, K.; Maran, J. Prakash; Moorthy, I. Ganesh; Viswanathan, Karthik; Karthikeyan, K.

doi:10.5004/dwt.2017.21107

Cited by 27 publications

(7 citation statements)

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“…Effect of (pH, MFM concentration, GOMCC dosage, and temperature) had positive effects on MFM adsorption, although GOMCC dose had a beneficial effect. 45 For MFM removal efficiency using GOMCC:…”

Section: Bbd Modeling and Statistical Analysismentioning

confidence: 99%

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Balasubramani

Sivarajasekar²,

Sarojini

et al. 2023

Ind. Eng. Chem. Res.

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Cellulose is a basic material for the manufacture of filters and adsorbent materials, as well as for the removal of contaminants, especially in food, pharma and other industries. The goal of this research is to see how a novel arrangement of biomass resources (hybrid biomass) can be used to improve the characteristics and behavior of microcrystalline cellulose (MCC) produced by the traditional method of acid hydrolysis. Chemical oxidation cum exfoliation was used to synthesize graphene oxide (GO) nanoparticles, which were then composited with microcrystalline cellulose (GOMCC) and used for metformin (MFM) adsorption from an aqueous medium. The GOMCC characterized using particle size distribution, X-ray analysis (XRD), Raman spectra analysis, Fourier transform infrared spectroscopy (FTIR), fieldemission scanning electron microscopy (FESEM) analysis, and transmission electron microscopy (TEM). The GOMCC that had been prepared was mesoporous and had a reasonable surface area (196 m 2 /g), with a pore volume of 0.134 cm 3 /g and pore width of 17.85 nm. Batch-mode adsorption was performed at various temperatures (288, 303, and 318 K), GOMCC amounts (50, 100, and 150 mg), MFM concentrations (30, 50, and 70 mg/L), and pH values (4.5, 6.5, and 8.5) and were investigated with the Box-Behnken statistical design. The machine learning, models�Support Vector Machine (SVM), Gaussian Process Regression (GPR), Regression Trees (TREE), and Ensemble of Regression Trees (Ensemble)�are used to predict the adsorptive removal of MFM onto GOMCC from the BBD design input. Different isotherm equations and various kinetic models were used to assess the sorption data and ideal values were determined using the sum of normalized errors methodology. MFM maximal sorption capacity was investigated to be 132.10 mg/g. The kinetics revealed that the pseudo-first-order model fit the data exactly. MFM sorption was found to be spontaneous (ΔG°) and exothermic (ΔH°) in a thermodynamic analysis. The chemisorption of MFM onto GOMCC was followed by subsequent pore diffusion, which was exothermic and spontaneous. The main mechanisms responsible for the removal of MFM were found to be π−π interactions, alone interactions, sulfur interactions, hydrophobic and hydrogen bonding.

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Section: Bbd Modeling and Statistical Analysismentioning

confidence: 99%

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Balasubramani

Sivarajasekar²,

Sarojini

et al. 2023

Ind. Eng. Chem. Res.

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“…As the value of change in total Gibbs free energy is positive, it suggests that the adsorption of CV dye by AASCO adsorbent requires energy for the process of converting reagent into products (Sivarajasekar et al 2017). The ΔG values at different temperatures are presented in Table 5.…”

Section: δG = δH − Tδs (22)mentioning

confidence: 99%

Use of activated Chromolaena odorata biomass for the removal of crystal violet from aqueous solution: kinetic, equilibrium, and thermodynamic study

Soosai

Moorthy

Varalakshmi

et al. 2022

Environ Sci Pollut Res

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In the present study, biomass from the Chromolaena odorata plant's stem was activated using sulfuric acid to absorb crystal violet (CV) dye. The adsorption operation of CV dye was studied considering the effect of variables like pH, initial dye concentration, time, adsorbent dosage, and temperature. The pseudo-second-order equation best tted the kinetic study, and thermodynamic parameters calculated were activation energy (9.56 kJ/mol), change in Gibbs energy (81.43 to 96.7 kJ/mol), enthalpy change (6.89 kJ/mol), and entropy change [-254.4 J/ (mol K)]. Response surface methodology (RSM) estimated at pH (4.902), adsorbent dosage (8.33 g/L), dye concentration (82.30 ppm), temperature (300.13 K) dye removal of 97.53% is possible. FTIR, SEM, XRD, BJH, and BET con rmed adsorption operation. The adsorbent can be reused for 5 cycles effectively. Langmuir isotherm best tted the adsorption operation was used for designing a theoretical single-stage batch adsorber for large-scale operation. IntroductionMauveine was the rst synthetic dye invented in 1856; since various synthetic dyes were created, the use and development of other synthetic dyes in textile industries have continuously increased. Synthetic dye meets nearly 65-70% of the dyeing industry's needs. They possess a large variant of color available at a relatively low price than natural dye and could colorize the target molecules easily with greater stability (Zhang et al. 2016b). Around 700,000 metric tons of pigments and dye are produced from over 10,000 types of dyes each year (Sahu &Patel 2016). Dyes are primarily organic and toxic. Dye pollutants from industry nd their way to natural water bodies that pose a severe threat to both humans and the environment (Zhao et al. 2017). The dye-rich wastewater hinders the growth of aquatic life by re ecting and absorbing the sunlight needed for photosynthesis needed by the underwater plant; thus, the presence of underwater ora and fauna is affected. This raises the serious issue of treating the dye e uent before discharging into the water source (Amri et al. 2018, Intarasuwan et al. 2017.Water is a important component as all the living organism on earth needs water for their daily vital activities. With the growth of population and urbanization, the need for water gets intensi ed. However, the various man-made activity allows the pollutants like dye molecules making their way into natural water bodies, rendering the water dangerous for consumption. The polluted water bodies deeply affect the health of humans and many other living organisms consuming it. Thus, it becomes essential to treat water in a large quantity, with the fast and straightforward process to make it safe for consumption of not only humans but also to the other living organism living amongst us (Ali 2012, Bolisetty et al. 2019, Zhang et al. 2016a).Crystal violet (CV) is a synthetic dye of triarylmethane dyes commonly employed in the textile and paper industry. The CV dye is mutagenic, teratogenic, and suspected carcinogen biohazards dye with a long half-l...

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“…VK1 was studied using Freundlich isotherm by plotting ln C e vs ln q e through Equation 7( Figure 4b). [40] Tempkin isotherm postulated that the adsorption energy decreases linearly with coverage. Tempkin isotherm, in its linear form Equation (8) was plotted between ln C e and q e to study the isotherm model (Figure 4c).…”

Section: Isotherm Modelmentioning

confidence: 99%

Decolorization of Textile Dye by Halophilic Exiguobacterium sp.VK1: Biomass and Exopolysaccharide (EPS) Enhancement for Bioremediation of Malachite Green

et al. 2020

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The salt pan soil screened for the exopolysaccharides (EPS) producing organisms for the decolourization textile dyes. The isolate was characterized and confirmed as Exiguobacterium sp. VK1 by 16S rRNA analysis. The enhanced production of EPS was obtained with the minimal medium which was supplemented with various carbon sources, and cassava peel which has shown a 5.9 fold increase in the EPS (7704.71 mg/L) production. Exiguobacterium sp. VK1 removed Malachite Green (MG) dye (684.38 mg/g) with the maximum biosorption capacity of 79.1% at pH 6 and 40°C. With the increased EPS production, by supplementing the cassava peel, the MG dye adsorption also increased up to 97.61%, when decolorized within 30 min by Exiguobacterium sp. VK1. It was found that Pseudo Second‐order kinetics and Freundlich isotherm is the best fit for the equilibrium adsorption process of MG dye by Exiguobacterium sp. VK1. The thermodynamic properties such as activation energy (12.993 kJ/mol), change in enthalpy (10.501 kJ/mol), change in entropy ‐254.07 J/(mol K) and change in Gibbs energy (84.945‐90.026 kJ/mol) were investigated by Arrhenius and Eyring equation using Pseudo‐second‐order kinetic model. The result revealed that the adsorption process was thermodynamically feasible.

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Optimization, equilibrium and kinetic studies on ibuprofen removal onto microwave assisted - activated Aegle marmelos correa fruit shell

Cited by 27 publications

References 0 publications

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Use of activated Chromolaena odorata biomass for the removal of crystal violet from aqueous solution: kinetic, equilibrium, and thermodynamic study

Decolorization of Textile Dye by Halophilic Exiguobacterium sp.VK1: Biomass and Exopolysaccharide (EPS) Enhancement for Bioremediation of Malachite Green

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