A Cr(VI)-imprinted-poly(4-VP-co-EGDMA) sorbent prepared using precipitation polymerization and its application for selective adsorptive removal and solid phase extraction of Cr(VI) ions from electroplating industrial wastewater

Neolaka, Yantus A.B.; Lawa, Yosep; Naat, Johnson N.; Riwu, Arsel A.P.; Darmokoesoemo, Handoko; Supriyanto, Ganden; Holdsworth, Clovia I.; Amenaghawon, Andrew N.; Kusuma, Heri Septya

doi:10.1016/j.reactfunctpolym.2019.104451

Cited by 144 publications

(31 citation statements)

References 66 publications

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“…The large variability and irregularity in the particle size is not beneficial for sorbent applications of imprinted materials, but it can be solved by the use of precipitation polymerization, which leads to uniform morphology of materials. Neolaka and co-workers [ 70 ] synthesized poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) polymer imprinted by potassium dichromate for environmental pollutant extraction. The X-ray diffraction measurements of IIP and NIP revealed an amorphous structure of materials.…”

Section: Molecularly or Ion Imprinted Sorbents For Solid Phase Extraction—synthesis Approaches And Characterizationmentioning

confidence: 99%

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

2021

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In the last 10 years, we have witnessed an extensive development of instrumental techniques in analytical methods for determination of various molecules and ions at very low concentrations. Nevertheless, the presence of interfering components of complex samples hampered the applicability of new analytical strategies. Thus, additional sample pre-treatment steps were proposed to overcome the problem. Solid sorbents were used for clean-up samples but insufficient selectivity of commercial materials limited their utility. Here, the application of molecularly imprinted polymers (MIPs) or ion-imprinted polymers (IIPs) in the separation processes have recently attracted attention due to their many advantages, such as high selectivity, robustness, and low costs of the fabrication process. Bulk or monoliths, microspheres and core-shell materials, magnetically susceptible and stir-bar imprinted materials are applicable to different modes of solid-phase extraction to determine target analytes and ions in a very complex environment such as blood, urine, soil, or food. The capability to perform a specific separation of enantiomers is a substantial advantage in clinical analysis. The ion-imprinted sorbents gained interest in trace analysis of pollutants in environmental samples. In this review, the current synthetic approaches for the preparation of MIPs and IIPs are comprehensively discussed together with a detailed characterization of respective materials. Furthermore, the use of sorbents in environmental, food, and biomedical analyses will be emphasized to point out current limits and highlight the future prospects for further development in the field.

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Section: Molecularly or Ion Imprinted Sorbents For Solid Phase Extraction—synthesis Approaches And Characterizationmentioning

confidence: 99%

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

2021

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“…The concentrations of initial and final Cr(VI) were carried out through the UV-visible spectrophotometry method by using 1,5-diphenylcarbazide as a complexing agent on a Quimis Spectrophotometer (Brazil). [45][46] The adsorption was measured at a wavelength of 540 nm. The adsorption capacity (q e ) was calculated by Equation 2,…”

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

Functionalized chitosan with butylammonium ionic liquids for removal of Cr(VI) from aqueous solution

Eliodório

Pereira

Morandim-Giannetti

2020

J of Applied Polymer Sci

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Environmental pollution by heavy metals is currently a problem of great concern for human health. In this context, this study aims to contribute with the synthesis and characterization of chitosan functionalized with three different ionic liquids (n-butylammonium acetate, sec-butylammonium acetate, and tert-butylammonium acetate) followed by its application in hexavalent chromium effluent treatment. The adsorbents synthesized (ChN, ChS, and ChT) were characterized by SEM, EDS, FTIR, BET, RDD, PSD, and XRD techniques. Afterward, the influences of temperature, contact time, and pH on the Cr(VI) adsorption process were evaluated. The solution with pH 3 displayed the highest adsorption capacities (107.31, 104.60, and 107.97 mg.g-1 for ChN, ChS, and ChT, respectively). The kinetic data were better adjusted to the Weber-Morris kinetic model with an ideal time of 2 h. Furthermore, the influence of temperature was evaluated using the Freundlich and Langmuir isotherms, with maximum capacities of 142.05 (ChN), 131.58 (ChS), and 146.63 mg.g-1 (ChT). The adsorbent displayed enhanced adsorption properties in comparison with raw chitosan by an intensification of the electrostatic interaction between amino groups and hexavalent chromium. Finally, the reusability was investigated, and significant results were observed (84.33 ± 4.87%) in the adsorption process after 4 cycles.

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“…Additionally, nitrogen containing polymers, especially those based on vinylpyridine monomers [6], present enhanced adsorption capabilities towards specific compounds, which justifies their use for the tailoring of some kinds of advanced materials. Indeed, due to their chelating capability, 4-vinylpyridine based materials are being considered for heavy metals adsorption with applications in wastewater/industrial effluents treatment [7][8][9][10], enzymes/protein adsorption [11,12] and other applications involving biomedicine or catalysis [13]. Due to the potential strong interaction between 4-vinylpyridine polymers and many polyphenols, our research explores hybrid cellulose-poly (4-vinylpyridine) materials to target these classes of compounds.…”

Section: Introductionmentioning

confidence: 99%

Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues

Gomes

Dias

Costa

2021

Reactive and Functional Polymers

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A Cr(VI)-imprinted-poly(4-VP-co-EGDMA) sorbent prepared using precipitation polymerization and its application for selective adsorptive removal and solid phase extraction of Cr(VI) ions from electroplating industrial wastewater

Cited by 144 publications

References 66 publications

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

Functionalized chitosan with butylammonium ionic liquids for removal of Cr(VI) from aqueous solution

Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues

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