Induced-fit adsorption of diol-based porous organic polymers for tetracycline removal

Zhang, Shenping; Li, Yankai; Shi, Changhong; Guo, Fangyuan; He, Congze; Cao, Zan; Hu, Jun; Cui, Changzheng; Liu, Honglai

doi:10.1016/j.chemosphere.2018.09.003

Cited by 37 publications

(7 citation statements)

References 49 publications

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“…In recent years, the research on adsorbent-based porous organic polymers (POPs) has come to prominence because of their unique adsorption properties for antibiotics in water. For example, in 2018, Liu [ 31 ] et al devised and synthesized diol-based porous organic polymers for the first time as absorbents for TC removal, and mechanism research showed that the multidentate hydroxyl groups of diol-based porous organic polymers ensured high binding energy to TC species. However, the maximum adsorption capacity was only 155.8 mg/g and it taken up to 300 min to reach adsorption equilibrium, and the high adsorption performance was limited to the pH 8–10 of the solution.…”

Section: Introductionmentioning

confidence: 99%

Designing Phenyl Porous Organic Polymers with High-Efficiency Tetracycline Adsorption Capacity and Wide pH Adaptability

et al. 2022

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Adsorption is an effective method to remove tetracycline (TC) from water, and developing efficient and environment-friendly adsorbents is an interesting topic. Herein, a series of novel phenyl porous organic polymers (P-POPs), synthesized by one-pot polymerization of different ratios of biphenyl and triphenylbenzene under AlCl3 catalysis in CH2Cl2, was studied as a highly efficient adsorbent to removal of TC in water. Notably, the obtained POPs possessed abundant phenyl-containing functional groups, large specific surface area (1098 m2/g) with abundant microporous structure, high pore volume (0.579 cm3/g), favoring the removal of TC molecules. The maximum adsorption capacity (fitted by the Sips model) could achieve 581 mg/g, and the adsorption equilibrium is completed quickly within 1 h while obtaining excellent removal efficiency (98%). The TC adsorption process obeyed pseudo-second-order kinetics and fitted the Sips adsorption model well. Moreover, the adsorption of POPs to TC exhibited a wide range of pH (2–10) adaptability and outstanding reusability, which could be reused at least 5 times without significant changes in structure and efficiency. These results lay a theoretical foundation for the application of porous organic polymer adsorbents in antibiotic wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Designing Phenyl Porous Organic Polymers with High-Efficiency Tetracycline Adsorption Capacity and Wide pH Adaptability

et al. 2022

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“…Comparing the dynamic size of the TC molecule (1.2 × 0.78 × 0.48 nm) with the PSD data of the prepared ACF felts (Figure b), it was found that the TC could partially enter the pores of the ACF. The high TC adsorption capacity of ACF-4 may benefit from its larger pore width.…”

Section: Resultsmentioning

confidence: 95%

Rapid Preparation of Activated Carbon Fiber Felt under Microwaves: Pore Structures, Adsorption of Tetracycline in Water, and Mechanism

Cheng

Wang

et al. 2019

Ind. Eng. Chem. Res.

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Adsorption is one of the most efficient ways to remove antibiotics from water. Usually, adsorption of tetracycline (TC) is a typical practice for evaluating the ability of an adsorbent to treat antibiotics in water. The adsorbent of activated carbon fiber (ACF) felt can be rapidly prepared using a microwave method. Moreover, the adsorption performance of the ACF felt for TC was evaluated using a dynamic adsorption device. The results show that the Freundlich equation, the Lagergren pseudo-first-order equation, and the liquid film diffusion model are more suitable for the elaboration of adsorption behavior. More importantly, the effect of the pore structure on the adsorption performance is reflected in the adsorption site provided by the specific surface area of the micropores and the adsorption force provided by the channels formed by the pores. The ACF in this study shows excellent TC adsorption performance compared to reported adsorbents, with a maximum absorption of 315.2 mg/g. The study on the adsorption mechanism indicates that the adsorption force comes from hydrogen bonds, π–π interaction, ACF pore structures, and wicking of the textiles. The excellent adsorption performance of ACF for TC predicts great potential in the field of water remediation.

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“…Leveraging their inherent advantages, such as lightweight composition, exceptional porosity, robust stability, and the ability to predesign and tune structures and functionalities, POPs have received increasing attention and research interest . These unique attributes position them as promising candidates for diverse applications, including but not limited to gas storage and separation, heterogeneous catalysis, photoelectric synthesis, biosensing, and adsorption. − …”

Section: Introductionmentioning

confidence: 99%

Porous Fe-Porphyrin as an Efficient Adsorbent for the Removal of Ciprofloxacin from Water

Mehraban Khaledi,

Taherimehr,

Hassaninejad-Darzi

2024

ACS Omega

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Antibiotics are widely used in medicine, but they are not fully metabolized in the body and can end up in wastewater. Conventional wastewater treatment methods fail to completely remove antibiotic residues, which can then enter rivers and streams. Adsorption is a promising technique for removing antibiotics from wastewater, even at low concentrations. The successful one-pot synthesis of an adsorbent, iron-containing porphyrin-based porous organic polymer (Fe-POP), was achieved through the reaction of pyrrole groups and terephthalaldehyde in the presence of FeCl 3 . Characterized by a substantial BET surface area of 597 m 2 g −1 , Fe-POP was systematically investigated for its adsorption potential in the removal of the antibiotic Ciprofloxacin (CIP) from aqueous solutions. By systematic variation of key parameters, including pH, adsorbent loading, and CIP concentration, the adsorption conditions were optimized. Under the optimal conditions at pH = 3, CIP concentration of 5 ppm, and 25 mg of Fe-POP, the maximum adsorption capacity reached an impressive 263 mg g −1 . The robust adsorption behavior was elucidated through the fitting of experimental data to the Langmuir adsorption isotherm (R 2 = 0.962) and the pseudo-second-order kinetic model (R 2 = 0.999) with lower error values. These models suggested that the adsorption process predominantly involved chemical interactions between CIP molecules and the Fe-POP surface. Fe-POP exhibited a robust structure with a high adsorption capacity, showcasing its efficacy in removing CIP contaminants from water. Therefore, Fe-POP can be considered a valuable adsorbent for water treatment applications, specifically for antibiotic removal.

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Induced-fit adsorption of diol-based porous organic polymers for tetracycline removal

Cited by 37 publications

References 49 publications

Designing Phenyl Porous Organic Polymers with High-Efficiency Tetracycline Adsorption Capacity and Wide pH Adaptability

Designing Phenyl Porous Organic Polymers with High-Efficiency Tetracycline Adsorption Capacity and Wide pH Adaptability

Rapid Preparation of Activated Carbon Fiber Felt under Microwaves: Pore Structures, Adsorption of Tetracycline in Water, and Mechanism

Porous Fe-Porphyrin as an Efficient Adsorbent for the Removal of Ciprofloxacin from Water

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