Carboxylate-functionalized hollow polymer particles modified polyurethane foam for facile and selective removal of cationic dye

Wei, Xin; Chen, Dong; Wang, Li; Ma, Yuhong; Yang, Wantai

doi:10.1016/j.apsusc.2021.152153

Cited by 20 publications

(6 citation statements)

References 55 publications

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“…The analysis of the obtained results shows that the adsorbed amount of cationic dye MB on TMG increases from 65.644 to 104.203 mg g -1 with the increase of the initial solution pH from 2 to 12, respectively. These results are similar to those of other studies (Wei et al 2022). This is due to the decrease in H + protons competing with methylene blue molecules in solution at acidic pH values, of which one is present in large amounts, and the increase in OHhydroxyl ions at alkaline pH values.…”

Section: The Effect Of Ph Solutionsupporting

confidence: 92%

“…The SEM micrographs show that the clay surface has a heterogeneous and porous texture, such that the clay particles appear as clusters of aggregates and irregular. It can also be seen that there are grooves and pores on the surface of the natural clay, which play an important role in the adsorption process (Wei et al 2022). The EDS analysis shows that our material contains mainly chemical elements: O, Si, Ca, Al, Fe, Mg, K, Na, Ti, Cu, S, and Mn, as shown in Figure .1e in weight percentage (mass %) and atomic percentage (atom %).…”

Section: Characterization Of Tmg Raw Clay Powdermentioning

confidence: 74%

“…Among these processes, the most used in recent research are adsorption, membrane filtration, coagulationflocculation, chemical oxidation, photocatalysis, biological treatment, etc (Rashid et al 2021). Of all these treatment processes, the adsorption process is among the most widely used decolorization techniques, due to its low cost, ease of use, high efficiency, lack of secondary pollution, and high capacity for regeneration of the adsorbent (Rashid et al 2021;Wei et al 2022). In recent years, much effort has been made to develop and test various natural or synthetic adsorbents for the removal of toxic pollutants from aqueous solutions by adsorption.…”

Section: Introductionmentioning

confidence: 99%

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Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

El-Habacha

Dabagh

Lagdali

et al. 2023

Preprint

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The present research work revolves around the evaluation of the elimination of the cationic dye Methylene Blue (MB) from an aqueous solution by the exploitation of natural clay (TMG) from South-East Morocco. Several physicochemical techniques were used to characterize our TMG adsorbate, namely: X-ray diffraction (XRD), Fourier transform infrared absorption spectroscopy (FTIR), differential thermal analysis (DTA), thermal gravimetric analysis (TGA), and zero charge point (pHpzc). The morphological properties and elemental composition of our material were identified using scanning electron microscopy coupled with an energy-dispersive X-ray spectrometer (SEM-EDS). The batch technique was used under different operating conditions to produce quantitative adsorption, namely the amount of adsorbent, dye concentration, contact time, pH, and solution temperature. The maximum adsorption capacity of MB on TMG was 81.185 mg g-1 for a concentration of 100 mg L-1 MB at pHinitial= 6.43, temperature 20 °C, and 1 g L-1 adsorbent. The adsorption data were examined by Langmuir, Freundlich, and Temkin isotherms. The Langmuir isotherm provides the best correlation with the experimental data, and the pseudo-second-order kinetic model is more appropriate for the adsorption of the MB dye. The thermodynamic study of MB adsorption indicates that the process is physical, endothermic, and spontaneous. The Box-Behnken method was applied to identify the optimal conditions for MB removal in the design of batch experiments. The parameters examined result in >99% removal.

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Section: The Effect Of Ph Solutionsupporting

confidence: 92%

Section: Characterization Of Tmg Raw Clay Powdermentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

El-Habacha

Dabagh

Lagdali

et al. 2023

Preprint

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“…67 The ionic interaction in the PU is generally introduced through the blending of ionic liquids or the reaction of ionic chain extenders. While providing the selfhealing properties of PUs, the ionic bond usually brings antibacterial properties, [68][69][70] adsorption properties, 71,72 electrical Fig. 7 (a) Synthetic route of the PDM elastomers and the stress-strain curve of the PDM-2.5 elastomer divided into three regimes.…”

Section: Ionic Bondmentioning

confidence: 99%

Toward mechanically robust self-healing polyurethanes using dynamics chemistry

Luo,

Gao,

Luo

et al. 2024

Mater. Chem. Front.

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“…The immobilized cellulase showed excellent reusability in catalytic hydrolysis of carboxymethylcellulose sodium salt, preserving almost 100% activity after recycling 6 times and losing only 20% activity after 10 cycles. Wei et al 33 synthesized carboxylate-functionalized hollow polymer particles (HPPs-COO − ) derived from hollow styrene maleic anhydride microspheres prepared by the 2SP technique. The HPPs-COO − was used to modify polyurethane foam (PUF).…”

Section: ■ Introductionmentioning

confidence: 99%

Monodisperse Styrene-Maleic Anhydride-Isoprene Terpolymer Microspheres with Tunable Crosslinking Density Prepared by Self-Stabilized Precipitation Polymerization

Chen

Jing

et al. 2022

ACS Appl. Polym. Mater.

Self Cite

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Synthesis and industrial production of functional monodisperse microspheres still face enormous challenges like precise size control and process simplification. Herein, a strategy to prepare monodisperse styrene-maleic anhydride-isoprene terpolymer microspheres via self-stabilized precipitation polymerization was reported. The prepared microspheres with different isoprene proportions have uniform particle sizes (623−1156 nm) and narrow size distributions. The structure analysis showed that the copolymerization proceeded in an alternating way between the electron donor (styrene and isoprene) and electron acceptor (maleic anhydride) monomer, and isoprene was incorporated into the polymer chain through 1, 4 addition. The gel fraction of microspheres varies from 0 to 99% along with an increasing isoprene feeding ratio. The Diels−Alder (D−A) reaction between maleic anhydride and isoprene can be effectively inhibited by increasing the amount of initiator or decreasing the polymerization temperature. The resultant uniform microspheres contain reactive anhydride groups and unsaturated C�C bonds derived from isoprene, which can be used to covalently attach functional moieties and have great potential in fields of adsorption and separation, drug delivery, biodetection, and enzyme immobilization.

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Carboxylate-functionalized hollow polymer particles modified polyurethane foam for facile and selective removal of cationic dye

Cited by 20 publications

References 55 publications

Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

Methylene blue dye’s adsorption on a natural clay surface from Southeast Morocco: modeling and experimental equilibrium studies

Toward mechanically robust self-healing polyurethanes using dynamics chemistry

Monodisperse Styrene-Maleic Anhydride-Isoprene Terpolymer Microspheres with Tunable Crosslinking Density Prepared by Self-Stabilized Precipitation Polymerization

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