Innovative Polymer Microspheres with Chloride Groups Synthesis, Characterization and Application for Dye Removal

Wawrzkiewicz, Monika; Podkościelna, Beata

doi:10.3390/pr10081568

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…The peaks at 1450 cm −1 originate from C−H deformations in the −CH 2 and −CH 3 groups. The signals at 1250 cm −1 correspond to the C−O stretching vibrations [42–43] . Due to the presence of TEVS in microspheres, the intensive signal is observed at 1110–1000 cm −1 from Si−O−C groups [44] .…”

Section: Resultsmentioning

confidence: 99%

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Insight into the Structure of MOF‐Containing Hybrid Polymeric Microspheres

2023

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Polymer science exploited metal organic frameworks (MOFs) for various purposes, which is due to the fact that these materials are ideal platforms for identifying design features for advanced functional materials. The mechanism of polymerization using MOFs, is still largely unexplored and the detailed characterization of both materials in essential to understand the important interactions between the components. In this work modern advanced research methods were used to investigate the properties of MOF‐containing hybrid polymeric microspheres. Hydrothermal conversion of CFA‐derived iron particles was used to obtain MOF nanostructures, which were then introduced to the structure of hybrid polymer microspheres based on ethylene glycol dimethylacrylate (EGDMA) and triethoxyvinylsilane (TEVS). Chemical structures were confirmed by ATR‐FTIR method. To provide information about the elemental composition of the tested materials and for the determination of chemical bonds present in the tested samples XPS method was applied. Morphology was studied using SEM microscopy, whereas porosity was investigated using ASAP technique. Swellability coefficients were determined using typical organic solvents and distilled water. Moreover, the ecological aspect concerning the use of fly ashes deserves to be emphasized.

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Section: Resultsmentioning

confidence: 99%

“…The signals at 1250 cm À 1 correspond to the CÀ O stretching vibrations. [42][43] Due to the presence of TEVS in microspheres, the intensive signal is observed at 1110-1000 cm À 1 from SiÀ OÀ C groups. [44] A band at 750 cm À 1 corresponds to CÀ H aromatic vibrations.…”

Section: Properties Of Functionalized Microspheres With Mofmentioning

confidence: 99%

Insight into the Structure of MOF‐Containing Hybrid Polymeric Microspheres

2023

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“…In one study, it was indicated that the adsorption process is controlled by the intraparticle diffusion model when the graphical representation of Q t as a function of t 1/2 is a straight line through the origin. If the straight line does not pass through the origin, it means that the intraparticle diffusion is not the only mechanism involved in limiting the adsorption rate [ 59 ]. It can be seen from the graphs presented in Figure 7 a,b that in the case of both MB and PRM removal from all the materials, the lines did not cross the origin, which indicates that the adsorption process is a very complex one involving surface adsorption, interparticle diffusion, and intraparticle diffusion.…”

Section: Resultsmentioning

confidence: 99%

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Țurcanu

Matei

Râpă

et al. 2022

IJMS

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This research emphasizes the performance of some eco-friendly carbon materials as hydrochars (HC) obtained by the hydrothermal carbonization (HTC) process applied to walnut shell (WS) biowaste. These materials display promising properties that can be used for environmental applications such as emerging pharmaceutical pollutant retention from water sources. Thus, three hydrochars coded HCWS1, HCWS2, and HCWS3 were obtained using a dynamic autoclave in specific conditions—temperature of 220 °C, autogenous pressure, 1:10 biomass–water weight ratio—and for three different reaction times, 1 h, 6 h, and 12 h. The HCWSs were characterized by means of ATR-FTIR and SEM-EDS analyses and tested as possible adsorbents to assess the removal efficiencies of some emerging pharmaceutical pollutants (paracetamol and methylene blue) by UV–VIS spectrophotometry. Kinetic and adsorption studies were carried out. The best results were obtained for the HCWS3 hydrochar. Further perspectives include an activation step of the hydrochars and their testing on other emerging pharmaceutical pollutants.

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“…The values of determination coefficients (R 2 ), chi-square (χ 2 ) and residual sum of squares error (SSE) were calculated to establish the best fitting model of adsorption [ 30 , 31 , 32 , 33 ]. The isotherm parameters are listed in Table 2 .…”

Section: Assessment Of the Dpvo–egdma–tmvs Adsorption Propertiesmentioning

confidence: 99%

Synthesis and Characterization of Phosphorus-Containing Sorbent for Basic Dye Removal

Wawrzkiewicz,

Frynas,

Podkościelna

2023

Molecules

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A new phosphorus-containing sorbent was prepared by copolymerizing ethylene glycol dimethacrylate (EGDMA) and trimethylvinyl silane (TMVS) with diphenylvinylphoshine oxide (DPVO). It was characterized and applied in the removal of cationic dyes such as C.I. Basic Yellow 2 (BY2), C.I. Basic Blue 3 (BB3) and C.I. Basic Red 46 (BR46) using the batch method. Spectroscopic analysis indicated that the phosphinoyl group was introduced into the sorbent structure. Equilibrium adsorption data were fitted to the Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherm models. The Freundlich model is the most suitable to describe the adsorption of BB3 (the Freundlich constant kF = 32.3 mg1−1/nL1/n/g) and BY2 on the sorbent (13.8 mg1−1/nL1/n/g), while the Langmuir model is the most adequate to describe the adsorption of BR46 (the monolayer capacity Q0 = 2.7 mg/g). The kinetics of the dye adsorption follows the assumptions of the pseudo-second-order (the rate constants k2 = 0.087 ÷ 0.738 g/mg min) model rather than pseudo-first-order or intraparticle diffusion. The presence of Na2SO4 and cationic surfactant in the aqueous solutions inhibited dye retention by the DPVO–EGDMA–TMVS. Adsorbent regeneration efficiency does not exceed 60% using 1 M NaCl and 1 M HCl solutions in the presence of 50% v/v methanol.

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Innovative Polymer Microspheres with Chloride Groups Synthesis, Characterization and Application for Dye Removal

Cited by 5 publications

References 30 publications

Insight into the Structure of MOF‐Containing Hybrid Polymeric Microspheres

Insight into the Structure of MOF‐Containing Hybrid Polymeric Microspheres

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions

Synthesis and Characterization of Phosphorus-Containing Sorbent for Basic Dye Removal

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