Highly sensitive and recognizable detection for trifluralin with alkyl-decorated fluorescent porous polymers

Li, Bin; Wang, Zhonggang

doi:10.1016/j.cej.2023.144123

Cited by 3 publications

(2 citation statements)

References 55 publications

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“…29,30 Previous studies have indicated that substituents play a crucial role in the gas adsorption, gas-separation, and fluorescent-emission capacities of porous polymers. 15,18,24,27 For example, Li et al 15 carried out a study on the adsorption selectivities of microporous polyaminal networks (MPANs) for C 3 H 8 /CH 4 , C 2 H 6 /CH 4 , and CO 2 /CH 4 , and they demonstrated that the introduction of methyl substituents into an MPAN significantly enhances the C 3 H 8 /CH 4 , C 2 H 6 /CH 4 , and CO 2 /CH 4 adsorption selectivities of the MPAN. However, it is worth noting that the MPANs are derived from complex monomers, and there is limited research on the correlation between the substituent groups of NPANs and the adsorption capacities of the polyaminal networks for SO 2 , NH 3 , CO 2 , and I 2 .…”

Section: ■ Introductionmentioning

confidence: 99%

“…Nanoporous polyaminal networks (NPANs) are nitrogen-rich NOPs that are synthesized using aldehydes and multiamines (based on triazine or piperazine and its derivatives). , NPANs with diverse functional groups have been synthesized and applied in various fields, including gas adsorption/separation, − I 2 capture, − catalysis, , pesticide detection, − and water treatment. , Previous studies have indicated that substituents play a crucial role in the gas adsorption, gas-separation, and fluorescent-emission capacities of porous polymers. ,,, For example, Li et al carried out a study on the adsorption selectivities of microporous polyaminal networks (MPANs) for C 3 H 8 /CH 4 , C 2 H 6 /CH 4 , and CO 2 /CH 4 , and they demonstrated that the introduction of methyl substituents into an MPAN significantly enhances the C 3 H 8 /CH 4 , C 2 H 6 /CH 4 , and CO 2 /CH 4 adsorption selectivities of the MPAN. However, it is worth noting that the MPANs are derived from complex monomers, and there is limited research on the correlation between the substituent groups of NPANs and the adsorption capacities of the polyaminal networks for SO 2 , NH 3 , CO 2 , and I 2 .…”

Section: Introductionmentioning

confidence: 99%

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Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Tong,

Wang,

Yan

2024

ACS Appl. Polym. Mater.

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Investigating the relationship between the substituent groups of nanoporous organic polymers and the adsorption capacities of the polymers for SO 2 , NH 3 , CO 2 , and I 2 is a significant challenge. In this study, four nanoporous polyaminal networks (NPANs) with methyl or phenyl substituent groups were prepared, and they demonstrated high adsorption capacities for SO 2 , NH 3 , CO 2 , and I 2 . The four NPANs, which were referred to as NPAN-1, NPAN-2, NPAN-3, and NPAN-4, were fabricated via a one-pot polycondensation method by using inexpensive p-phthalaldehyde (p-PDA) or m-phthalaldehyde (m-PDA) and 6methyl-1,3,5-triazine-2,4-diamine (MTDA) or 2,4-diamino-6-phenyl-1,3,5-triazine (DAPT). The NPANs had a dense aminal-rich structure and stable nanoporosity, which contributed to their high adsorption capacities for SO 2 , NH 3 , CO 2 , and I 2 and their high SO 2 /CO 2 selectivities. Notably, the SO 2 adsorption capacities, NH 3 adsorption capacities, CO 2 adsorption capacities, and I 2 adsorption capacities of NPAN-1 and NPAN-3, which were NPANs with electron-donating methyl groups, were higher than those of NPAN-2 and NPAN-4, which were NPANs with electron-withdrawing phenyl groups. This result indicated that the introduction of electron-donating groups into an NPAN enhanced the electron density of the nitrogen atoms in the polyaminal network, leading to increases in the adsorption capacities of the NPAN for SO 2 , NH 3 , CO 2 , and I 2 . This study offers important insights into the design and synthesis of NPANs with adjustable properties to tackle environmental and industrial challenges.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Tong,

Wang,

Yan

2024

ACS Appl. Polym. Mater.

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Engineering Nanoporous Polyaminal Networks for Superior SO₂ Capture and Selectivity

Yan,

Zhu,

Tong

et al. 2024

ACS Appl. Mater. Interfaces

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Designing adsorbent materials with high SO 2 adsorption capacities and selectivity remains a significant challenge in flue gas desulfurization. This work focuses on developing two nitrogen-rich nanoporous polyaminal networks (NPANs), which demonstrate promising capabilities for SO 2 adsorption and separation. Two nitrogen-rich nanoporous polyaminal networks, NPAN-5 and NPAN-6, were synthesized via a one-pot method using thiophene-2,5-dicarbaldehyde and furan-2,5-dicarbaldehyde with 1,4bis(2,4-diamino-1,3,5-triazine)-benzene, respectively. The Brunauer−Emmett−Teller (BET) specific surface areas of NPANs range from 838 to 956 m 2 •g −1 . At 298 K and pressures of 0.1 and 1.0 bar, NPAN-5, featuring thiophene units, demonstrates a SO 2 adsorption uptake of 5.14 and 9.63 mmol•g −1 , respectively, surpassing many previously reported materials. Furthermore, at room temperature, NPAN-6, containing furan moieties, exhibits unprecedented selectivity for SO 2 over CO 2 and N 2 , with ratios reaching up to 78 and 9321, respectively. Dynamic breakthrough experiments reveal that NPANs effectively separate SO 2 from a ternary gas mixture comprising SO 2 , CO 2 , and N 2 at concentrations of 0.2, 10, and 89.8%, respectively. Notably, NPAN-6 achieves a prolonged SO 2 retention time of 218 min•g −1 and a saturation adsorption uptake of 0.42 mmol•g −1 . The remarkable SO 2 adsorption capacities and selectivities demonstrated by these nitrogen-rich nanoporous polyaminal networks underscore their potential to revolutionize industrial flue gas desulfurization.

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A superhydrophobic nanocrystalline MOF embedded starch@cotton composite for fast, selective and nanomolar sensing and adsorptive removal of a fluorinated herbicide from aqueous medium

Ghosh,

Laha,

Biswas

2024

Environ. Sci.: Nano

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Highly sensitive and recognizable detection for trifluralin with alkyl-decorated fluorescent porous polymers

Cited by 3 publications

References 55 publications

Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Engineering Nanoporous Polyaminal Networks for Superior SO₂ Capture and Selectivity

A superhydrophobic nanocrystalline MOF embedded starch@cotton composite for fast, selective and nanomolar sensing and adsorptive removal of a fluorinated herbicide from aqueous medium

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Highly sensitive and recognizable detection for trifluralin with alkyl-decorated fluorescent porous polymers

Cited by 3 publications

References 55 publications

Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Tuning the Adsorption Capacities of Nanoporous Polyaminal Networks through Substituent Groups

Engineering Nanoporous Polyaminal Networks for Superior SO2 Capture and Selectivity

A superhydrophobic nanocrystalline MOF embedded starch@cotton composite for fast, selective and nanomolar sensing and adsorptive removal of a fluorinated herbicide from aqueous medium

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Engineering Nanoporous Polyaminal Networks for Superior SO₂ Capture and Selectivity