Microwave synthesis of metal-organic frameworks absorbents (DUT-5-2) for the removal of PFOS and PFOA from aqueous solutions

Hu, Yue; Guo, Mei; Zhang, Shuangling; Jiang, Wenli; Xiu, Tiantian; Yang, Shuo; Kang, Mengchen; Dongye, Zixuan; Li, Zhenru; Wang, Li

doi:10.1016/j.micromeso.2022.111740

Cited by 22 publications

(4 citation statements)

References 42 publications

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“…S3†), the surface BET area and pore volume were calculated (1616 m 2 g −1 and 0.55 cm 3 g −1 ), consistent with the reported data. 30,34 The thermal stability was confirmed using TGA analysis (Fig. S4†), showing strength up to 430 °C.…”

Section: Resultsmentioning

confidence: 98%

Al(iii)-based MOF for the selective adsorption of phosphate and arsenate from aqueous solutions

Obeso,

Viltres,

Flores

et al. 2024

RSC Appl. Interfaces

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Section: Resultsmentioning

confidence: 98%

Al(iii)-based MOF for the selective adsorption of phosphate and arsenate from aqueous solutions

Obeso,

Viltres,

Flores

et al. 2024

RSC Appl. Interfaces

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“…This might be explined by the more significant role of hydrophobic interactions in the adsorption of PFOS under high concentrations due to the longer hydrophobic tail of PFOS than PFHxS and PFBS. [35] The adsorption capacity of PFOS on PCN-224 (1.79 mmol g À 1 ) is comparable to that of mesoporous MOF-808 (1.74 mmol g À 1 ), [36] DUT-5-2 (1.89 mmol g À 1 ), [37] and higher than those reported for other MOF materials, including Zr-MOFs, such as NU-1000 (1.16 mmol g À 1 ), [29] UiO-67 (1.08 mmol g À 1 ); [38] ZIFs such as, ZIF-67 (1.37 mmol g À 1 ); [39] and MIL series, such as MIL-53-AL-BPDC (0.57 mmol g À 1 ) [40] (Figure 5d, Table S3). In addition, we performed the adsorption experiment in a 1 ppb solution to investigate the sorption capability of PCN-224 toward PFOS at environmentally relevant concentration.…”

Section: Adsorption Of Pfos Pfhxs and Pfbs On Pcn-224mentioning

confidence: 91%

A Porphyrinic Metal‐Organic Framework with Cooperative Adsorption Domains for PFAS Removal from Water

Zhang,

Kong,

et al. 2024

ChemSusChem

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The removal of toxic poly− and perfluoroalkyl substances (PFAS) as persistent pollutants from wastewater is imperative but challenging for water remediation. Many adsorbents including activated carbon, biochar, and clay minerals have been investigated for PFAS removal, but most of these materials are faced with high cost or/and low efficiency. The use of metal−organic frameworks (MOFs) as sorbents is attractive for efficient removal of PFAS due to their tailor‐made structures and high surface areas. Herein, we synthesized, characterized a water stable Zr−based porphyrinic MOF (PCN−224) with cooperative adsorption domains, and demonstrated its excellent capture performance toward perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS) and perfluorobutane sulfonate (PFBS). PCN−224 has maximum uptake capacities of 963, 517, and 395 mg g−1 for PFOS, PFHxS, and PFBS, respectively, which are much higher than that of granular activated carbon. Moreover, coexistent anions (Cl−, SO42−) and humic acid have negligible effects on PFOS adsorption. The excellent adsorption performance of PCN−224 toward PFOS is due to the orthogonal cationic channel pores with a diameter of 1.9 nm, hydrophobic porphyrin units, and the Zr6 clusters with acidic sites. PCN−224 can be readily regenerated and reused. This work highlights the potential of MOFs with multiple adsorption domains for water remediation.

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“…The PFOS concentrations in the three rivers used as drinking water sources, including the Tama River, ranged from 13.0 to 38.5 ng/L (Ara River), 0.7 to 157.0 ng/L (Tama River), and 0.9 to 27.3 ng/L (Yodogawa River), respectively. In recent years, with the deepening of research on PFOS and PFOA, people have gradually realized that they are not only accumulating in living organisms, triggering biotoxicity and having a highly negative impact on the organism's liver, immunity and, above all, fertility, but are also potentially carcinogenic [19]. Hence, numerous countermeasures are already being implemented.…”

Section: Introductionmentioning

confidence: 99%

A Review of Treatment Technologies for Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) in Water

Cheng¹,

Huang²,

Li³

et al. 2023

Processes

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Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are a category of persistent, non-degradable pollutants that are widespread in the environment and in humans. They have attracted considerable attention due to their high bioaccumulation, multiple toxicities, long-term stability, and, in particular, their effects on human health. Therefore, there is an urgent need for highly efficient technologies and systematic mechanisms for the degradation of PFOS and PFOA. Therefore, we summarize four mainstream technologies for the degradation of PFOS and PFOA in water and their research progress in this review, namely adsorption, advanced oxidation processes, microbial treatment, and membrane separation. Among them, adsorption technology is the earliest and relatively mature, the advanced oxidation process has relatively high treatment efficiency, there are deep and broad development prospects for microbial treatment in the future, and membrane separation technology can recycle raw materials and help to save resources. Based on the analysis of the advantages and disadvantages of the existing technologies, the development prospect of reasonable optimization technology is prospected, with a view to providing a practical scientific reference for the research and engineering practice of PFOS and PFOA pollution control in China.

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Microwave synthesis of metal-organic frameworks absorbents (DUT-5-2) for the removal of PFOS and PFOA from aqueous solutions

Cited by 22 publications

References 42 publications

Al(iii)-based MOF for the selective adsorption of phosphate and arsenate from aqueous solutions

Al(iii)-based MOF for the selective adsorption of phosphate and arsenate from aqueous solutions

A Porphyrinic Metal‐Organic Framework with Cooperative Adsorption Domains for PFAS Removal from Water

A Review of Treatment Technologies for Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) in Water

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