A hydrophilic-lipophilic triazine based hyper-crosslinked polymer for efficient enrichment of nitrobenzene compounds

Chang, Guifen; Zhao, Ying; Zhao, Lei; Yang, Xiu‐Wei; Zhang, Shuaihua; Wang, Chun; Wang, Zhi

doi:10.1016/j.aca.2022.340638

Cited by 9 publications

(4 citation statements)

References 34 publications

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“…16 Incorporating nitrogenous organic ligands enhances the adsorption affinity of the adsorbent for TC in comparison to other organic ligands. 17,18 When the nitrogen atom in the nitrogenous organic ligands perfectly integrates with the adsorbent, the adsorbent surface generates enriched p-electron density regions, 19,20 resulting in stronger p-p electron-donoracceptor interactions between the adsorbent and p-electroncontaining chemicals (TC). 21 Wang et al showed that nitrogen doping enhances the p-p electron-donor-acceptor interactions between the adsorbent and TC, which further enhances the adsorption capacity of the adsorbent for TC.…”

Section: Introductionmentioning

confidence: 99%

Combined effect of amino nitrogen and pyridine nitrogen for tetracycline adsorption on aminopyridine modified MIL-101(Cr)

Ma,

Liu,

et al. 2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Combined effect of amino nitrogen and pyridine nitrogen for tetracycline adsorption on aminopyridine modified MIL-101(Cr)

Ma,

Liu,

et al. 2024

New J. Chem.

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“…For example, Chang et al. constructed new triazine‐based HCPs and applied them for the sensitive determination of nitrobenzene compounds in environmental water samples [18]. Jiang et al.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the extraction performance and selectivity toward analytes can be improved by introducing the crosslinking and the functional groups of monomers. For example, Chang et al constructed new triazine-based HCPs and applied them for the sensitive determination of nitrobenzene compounds in environmental water samples [18]. Jiang et al used apigenin as a monomer to synthesize a new type of HCPs, which can effectively capture chlorophenols via hydrogen bonds, halogen bonds, and π-stacking interactions [19].…”

Section: Introductionmentioning

confidence: 99%

Dispersive solid‐phase extraction of alkaloids and polyphenols using borate hypercrosslinked polymers

Liu

Wang

et al. 2023

J of Separation Science

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In this study, a borate hyper-crosslinked polymer was synthesized by crosslinking 1-naphthalene boric acid and dimethoxymethane via the Friedel-Crafts reaction. The prepared polymer exhibits excellent adsorption performance toward alkaloids and polyphenols with maximum adsorption capacities ranging from 25.07 to 39.60 mg/g. Adsorption kinetics and isotherms model results indicated the adsorption was a monolayer and chemical process. Under the optimal extraction conditions, a sensitive method was established for the simultaneous quantification of alkaloids and polyphenols in green tea and Coptis chinensis by coupling with the proposed sorbent and ultra-high performance liquid chromatography detection. The proposed method exhibited a wide linear range of 5.0-5000.0 ng/ml with R 2 ≥ 0.99, a low limit of detection (0.66-11.25 ng/ml), and satisfactory recoveries (81.2%-117.4%). This work provides a simple and convenient candidate for the sensitive determination of alkaloids and polyphenols in green tea and complex herbal products.

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“…Hyper-cross-linked polymers (HCPs) − are efficient polymeric adsorbents for the adsorptive removal of nitrophenols from aqueous solutions due to their high S BET and predominant microporosity, and micropore filling is proven the main adsorption mechanism. − Especially, diverse functional groups can be chemically uploaded on HCPs, and hence acid–base interaction, static interaction, and hydrogen bonding can be introduced to enhance the adsorption. − Macroporous chloromethylated polystyrene (CMPS) is often served as the precursor for the synthesis of chemically modified HCPs. − For instance, Shao and Huang used N -vinylimidazole as a chemical modifier and incorporated it into HCPs, and an effective adjustment to the polarity and porosity could be achieved by manipulating the quantity of N -vinylimidazole during the polymerization process. The resulting N -vinylimidazole-modified HCPs had a large equilibrium capacity to PNP and ONP from water, and it could be attributed to the incorporation of acid–base interactions and hydrogen bonds.…”

Section: Introductionmentioning

confidence: 99%

Multiple Phenolic Hydroxyl-Modified Hyper-Crosslinked Polymers and Their Efficient Adsorptive Removal of o-Nitrophenol from Water

Cao,

Zhong,

Dai

et al. 2023

Ind. Eng. Chem. Res.

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Herein, three multiple phenolic hydroxyl aromatic compounds, namely, p-dihydroxybenzene (PD), 1,3,5-trihydroxybenzene (TB), and gallic acid (GA), were applied as the chemical modifiers and incorporated into initial polymers via nucleophilic substitution, hence creating intermediates with different phenolic hydroxyls (−OH). Thereafter, Friedel−Crafts alkylation resulted in multiple phenolic −OH-modified hyper-cross-linked polymers (HCPs), namely, PS−PD-DCE, PS-TB-DCE, and PS-GA-DCE. The final polymers exhibited a high Brunauer−Emmett−Teller (BET) surface area (S BET : 504−573 m 2 /g), large pore volume (V total : 0.48−0.54 cm 3 /g), and plentiful phenolic −OH (acidic exchange capacity: 1.2−2.6 mmol/g). The adsorption experiments revealed that PS-GA-DCE with the highest phenolic −OH was the most efficient adsorbent for the adsorption of o-nitrophenol from aqueous solutions, and the predicted maximum capacity (q max ) at 298 K was 1052 mg/g according to the Langmuir model, surpassing the data of most synthetic adsorbents in previous studies. The micropore diffusion model and the intraparticle diffusion model effectively elucidated the kinetic data. 5% of sodium hydroxide desorbed o-nitrophenol from the polymers completely, and the equilibrium capacity dropped to 85.5% after five repeated adsorption−desorption cycles. The adsorption mechanism revealed that hydrogen bonding was primarily responsible for the adsorption, with micropore filling serving as an additional contributing factor. These results provide valuable insights into the synthesis and application of chemically modified polymers for the enhanced adsorption performance.

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A hydrophilic-lipophilic triazine based hyper-crosslinked polymer for efficient enrichment of nitrobenzene compounds

Cited by 9 publications

References 34 publications

Combined effect of amino nitrogen and pyridine nitrogen for tetracycline adsorption on aminopyridine modified MIL-101(Cr)

Combined effect of amino nitrogen and pyridine nitrogen for tetracycline adsorption on aminopyridine modified MIL-101(Cr)

Dispersive solid‐phase extraction of alkaloids and polyphenols using borate hypercrosslinked polymers

Multiple Phenolic Hydroxyl-Modified Hyper-Crosslinked Polymers and Their Efficient Adsorptive Removal of o-Nitrophenol from Water

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