The optimisation of operating parameters of dye removal: application of designs of experiments

Pourabadeh, Amirasad; Baharinikoo, Leila; Nouri, Arezoo; Mehdizadeh, Bentolhoda; Shojaei, Saeed

doi:10.1080/03067319.2019.1680657

Cited by 17 publications

(3 citation statements)

References 21 publications

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“…U(VI) is particularly dangerous since uranium has both radioactivity and chemical toxicity. U(VI) contamination has detrimental effects on the environment and human health [1,2]. So, the efficient treatment of U(VI) in water has become a pressing environmental concern.…”

Section: Introductionmentioning

confidence: 99%

Performance and mechanism of uranium (VI) removal from aqueous solution by zero-valent nickel@hollow glass particles (ZVNi@HGP)

Mingzhe,

Zhang,

Xiaoyan

2024

Phys. Scr.

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The zero-valent nickel@ hollow glass particles (ZVNi@HGP) were prepared by liquid phase reduction method and characterized with SEM, XRD and XPS. The morphological structure analysis revealed that HGP can effectively mitigate the agglomeration of ZVNi particles and improve the activity of the material. The removal efficiency of U(VI) by the ZVNi@HGP was examined through a series of single-factor experiments. The results showed that ZVNi@HGP had a good removal efficiency for U(VI), with the removal rate reached up to 98.15% at uranium concentration of 10 mg/L, solid-liquid ratio of 0.15 g/L and pH=4.0. The adsorption isotherm model showed a maximum adsorption capacity of 423.33 mg/g for U(VI). The adsorption of U(VI) by ZVNi@HGP follows a pseudo-second-order kinetic model, which indicates that the adsorption of U(VI) by ZVNi@HGP is predominantly a chemical process. Thermodynamics shows that the removal of uranium by ZVNi@HGP is spontaneous. The results of the study showed that HGP could reduce the agglomeration of ZVNi, so the removal ability of ZVNi@HGP was superior to that of ZVNi.

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Section: Introductionmentioning

confidence: 99%

Performance and mechanism of uranium (VI) removal from aqueous solution by zero-valent nickel@hollow glass particles (ZVNi@HGP)

Mingzhe,

Zhang,

Xiaoyan

2024

Phys. Scr.

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“…[23] Studies have shown that nanomaterials could be effectively applied for the adsorption of microplastics from marine environment. [24,25] Pourabadeh et al [26] used iron nanoparticles for the removal of reactive red 2 from aqueous solution. Shojaei et al [27] studied NaX nanozeolites for the removal of auramine-O and malachite green dyes from aqueous media.…”

Section: Introductionmentioning

confidence: 99%

“…Studies have shown that nanomaterials could be effectively applied for the adsorption of microplastics from marine environment [24,25] . Pourabadeh et al [26] . used iron nanoparticles for the removal of reactive red 2 from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Famotidine Drug from Aqueous Medium by Ocimum Basilicum

Gulab,

Malik,

Jan

et al. 2024

ChemistrySelect

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The present study investigated the potential of basil seeds as adsorbent in order to remove famotidine drug from aqueous media. The optimum conditions for the adsorption of famotidine on the basil seeds were found to be 50 min contact time, 50 °C temperature, pH 1, 100 ppm concentration of famotidine, 0.03 g adsorbent mass and 50 rpm agitation rate. Pseudo 2nd order kinetics with a higher correlation coefficient (R2=0.9942) suggested chemisorption as preferable mechanism of adsorption. However, the enthalpy of adsorption (ΔH=+33.67 KJ/mol) was less than that of chemisorption but higher than that of physisorption which was attributed to strong hydrogen bonding between famotidine molecules and basil seed surface. The Langmuir isotherm with higher R2 (0.9960) than Freundlich isotherm (R2=0.8798) predicted maximum adsorption capacity (qm) of 99 mg/g while suggesting monolayer and favourable adsorption. The adsorption was endothermic (+ΔH) and spontaneous (−ΔG) in nature. The FT‐IR spectroscopy confirmed that famotidine was adsorbed on basil seed via strong hydrogen bonding. The study proposed that the simultaneous intake of famotidine and basil seeds should be strictly avoided as the drug readily adsorbs on basil seeds in acidic environment (gastric pH) thereby reducing its curing effect.

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Multiphase electroextraction of malachite green from surface water and its determination using digital imaging and chemometric tools

Viana,

Kubáň,

Botelho

et al. 2024

Electrophoresis

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This study introduces a novel method for the quantification of malachite green (MG), a pervasive cationic dye, in surface water by synergizing multiphase electroextraction (MPEE) with digital image analysis (DIA) and partial least square discriminant analysis. Aimed at addressing the limitations of conventional DIA methods in terms of quantitation limits and selectivity, this study achieves a significant breakthrough in the preconcentration of MG using magnesium silicate as a novel sorbent. Demonstrating exceptional processing efficiency, the method allows for the analysis of 10 samples within 20 min, exhibiting remarkable sensitivity and specificity (over 0.95 and 0.90, respectively) across 156 samples in both training and test sets. Notably, the method detects MG at low concentrations (0.2 µg L−1) in complex matrices, highlighting its potential for broader application in environmental monitoring. This approach not only underscores the method's cost‐effectiveness and simplicity but also its precision, making it a valuable tool for the preliminary testing of MG in surface waters. This study underscores the synergy among MPEE, DIA, and chemometric tools, presenting a cost‐efficient and reliable alternative for the sensitive detection of water contaminants.

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The optimisation of operating parameters of dye removal: application of designs of experiments

Cited by 17 publications

References 21 publications

Performance and mechanism of uranium (VI) removal from aqueous solution by zero-valent nickel@hollow glass particles (ZVNi@HGP)

Performance and mechanism of uranium (VI) removal from aqueous solution by zero-valent nickel@hollow glass particles (ZVNi@HGP)

Adsorptive Removal of Famotidine Drug from Aqueous Medium by Ocimum Basilicum

Multiphase electroextraction of malachite green from surface water and its determination using digital imaging and chemometric tools

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