Fabrication and Characterization of a Dye-Immobilized Yttria-Stabilized Zirconia Pellicular Adsorbent for Expanded Bed Adsorption Chromatography

Elpídio, Cinthia Meirelly de Araújo; Padilha, Carlos Eduardo de Araújo; Júnior, Francisco Canindé de Sousa; Nascimento, Ruthinéia Jéssica Alves do; Elpídio, Camilla Milena de Araújo; Júnior, Sérgio Dantas de Oliveira; Macêdo, Gorete Ribeiro de; Santos, Everaldo Silvino dos

doi:10.1007/s10337-018-3581-6

Cited by 7 publications

(1 citation statement)

References 42 publications

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“…Where C 0 is the initial concentration of the methylene blue solution (mg L -1 ), V f is the final volume of the injected solution (mL), and m ads is the adsorbent (biochar) mass (g) as adapted from [24].…”

Section: Column Adsorption Experimentsmentioning

confidence: 99%

Valorization of lignocellulosic agave residues via pyrolysis and its use as adsorbent for methylene blue removal

Thomas,

Cavalcante,

de Araújo Padilha

et al. 2024

Biomass Conv. Bioref.

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The economic exploitation of sisal (Agave sisalana) fibers leads to the generation of underutilized waste. Therefore, technologies must be developed to mitigate the environmental impacts caused by inadequate waste disposal and ensure more income from sisal exploration. The present study investigated the potential of agave residues in producing biochar with high adsorbent capacity via slow pyrolysis. Hybrid Itaporanga, Hybrid Bahia, and Mutant-1 hybrid agave varieties were used as precursors and methylene blue (MB) dye was used as a solute. In general, agave residues presented similar contents of lignin (12.1-13.2%) and ash (10.3-13.9%), while the greatest differences were recorded in the values of holocellulose (31.4%-42.4%) and extractives (23.2%-33.4%). The increase in temperature favored an increase in the surface area and volume of micropores in the biochar; however, the adsorption capacity of MB dye was reduced. The pseudo-second-order models effectively adjusted the adsorption kinetics. The Hybrid Itaporanga biochar obtained at 400 °C outperformed the other biochar, presenting static (80 mg.g -1 ) and dynamic (180 mg.g -1 ) adsorption values. Thus, thermochemical valorization of agave residue is attractive to obtain a cheap and environmentally friendly adsorbent.

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Section: Column Adsorption Experimentsmentioning

confidence: 99%

Valorization of lignocellulosic agave residues via pyrolysis and its use as adsorbent for methylene blue removal

Thomas,

Cavalcante,

de Araújo Padilha

et al. 2024

Biomass Conv. Bioref.

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Preparation of a novel hydrophobic interaction chromatography with higher selectivity by introducing spatial recognition

Shi

Zhang

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUNDHydrophobic interaction chromatography (HIC), as a typical separation technology, often suffers from low selectivity because it has a single interaction mode. Herein, a novel HIC resin (Octyl@BSA) with imprinted layer was synthesized and used for protein adsorption. Bovine serum albumin (BSA) and bovine serum γ‐globulin (bIgG) were used as model competitive proteins in this study. The effects of pH, salt type, concentration, and mass ratio were then investigated.RESULTSThe data from the static and dynamic adsorption experiments indicated that the introduction of spatial recognition effectively reduced the adsorption of competitive proteins, leading to significant improvements in selectivity. In comparison with raw HIC resin, Octyl@BSA retained a high binding capacity for BSA but rejected other proteins through spatial recognition. The maximum selectivity factors (α) of this resin may be close to 5. The adsorption kinetics and frontal adsorption experiments further confirmed the improvement in selectivity in batch and column mode. In addition, the recyclability of Octyl@BSA was tested using ten continuous BSA adsorption–desorption cycles.CONCLUSIONThis study demonstrated that the introduction of spatial recognition was an effective strategy for enhancing the advantage of target proteins during competitive adsorption, leading to an improvement in selectivity for HIC. © 2020 Society of Chemical Industry

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Development of an Efficient Solid-Phase Microextraction Monolithic Column for the Analysis of Estrogens in Human Urine and Serum Samples

Zhang

Wang²,

Yang³

et al. 2022

Chromatographia

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Fabrication and Characterization of a Dye-Immobilized Yttria-Stabilized Zirconia Pellicular Adsorbent for Expanded Bed Adsorption Chromatography

Cited by 7 publications

References 42 publications

Valorization of lignocellulosic agave residues via pyrolysis and its use as adsorbent for methylene blue removal

Valorization of lignocellulosic agave residues via pyrolysis and its use as adsorbent for methylene blue removal

Preparation of a novel hydrophobic interaction chromatography with higher selectivity by introducing spatial recognition

Development of an Efficient Solid-Phase Microextraction Monolithic Column for the Analysis of Estrogens in Human Urine and Serum Samples

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