Novel magnetic covalent organic framework for the selective and effective removal of hazardous metal Pb(II) from solution: Synthesis and adsorption characteristics

Wang, Shuai; Wang, Hao; Wang, Shixing; Fu, Longsheng; Zhang, Libo

doi:10.1016/j.seppur.2022.122783

Cited by 46 publications

(4 citation statements)

References 82 publications

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“…Owing to their unique qualities, magnetic COFs hold great promise for water remediation [ 205 ], and their potential for the elimination of toxic contaminants has been reported in a series of recent studies ( Table 8 ). Magnetic COF-based composites have proved effective for the removal of various organic (e.g., triclosan [ 206 ], triclocarban [ 206 ], polycyclic aromatic hydrocarbons [ 207 ], bisphenols [ 208 , 209 ], methyl orange [ 210 ], diclofenac [ 211 ], and sulfamethazine [ 211 ]) and inorganic (e.g., Cr(VI) [ 209 , 212 ], Pb(II) [ 213 ], Hg(II) [ 214 , 215 ], Au(III) [ 216 ], and UO 2 2+ [ 217 ]) pollutants.…”

Section: Magnetic Composites For Water Decontaminationmentioning

confidence: 99%

An Updated Overview of Magnetic Composites for Water Decontamination

Niculescu,

Mihaiescu,

Mihaiescu

et al. 2024

Polymers

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Water contamination by harmful organic and inorganic compounds seriously burdens human health and aquatic life. A series of conventional water purification methods can be employed, yet they come with certain disadvantages, including resulting sludge or solid waste, incomplete treatment process, and high costs. To overcome these limitations, attention has been drawn to nanotechnology for fabricating better-performing adsorbents for contaminant removal. In particular, magnetic nanostructures hold promise for water decontamination applications, benefiting from easy removal from aqueous solutions. In this respect, numerous researchers worldwide have reported incorporating magnetic particles into many composite materials. Therefore, this review aims to present the newest advancements in the field of magnetic composites for water decontamination, describing the appealing properties of a series of base materials and including the results of the most recent studies. In more detail, carbon-, polymer-, hydrogel-, aerogel-, silica-, clay-, biochar-, metal–organic framework-, and covalent organic framework-based magnetic composites are overviewed, which have displayed promising adsorption capacity for industrial pollutants.

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Section: Magnetic Composites For Water Decontaminationmentioning

confidence: 99%

An Updated Overview of Magnetic Composites for Water Decontamination

Niculescu,

Mihaiescu,

Mihaiescu

et al. 2024

Polymers

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“…Since they are non-biodegradable and highly soluble, these toxic ions easily migrate in water and tend to accumulate in living organisms, causing significant adverse effects. To mitigate this issue, MCOFs have been utilized for the removal of several metal ions including Hg(II), [72,73] Pb(II), [74] Cr(VI), [75,76] As(III) and As(V), [56] U(VI), [77] and Au(III). [78] The characteristics of selected MCOFs and their adsorption performance to different contaminants are summarized in Table 1.…”

Section: Metal Ions (Heavy Metals Ions and Radionuclides)mentioning

confidence: 99%

Magnetic Covalent Organic Framework Composites for Wastewater Remediation

Yang

Huang

You

et al. 2023

Small

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Covalent organic frameworks (COFs) with high specific surface area, tailored structure, easy functionalization, and excellent chemical stability have been extensively exploited as fantastic materials in various fields. However, in most cases, COFs prepared in powder form suffer from the disadvantages of tedious operation, strong tendency to agglomerate, and poor recyclability, greatly limiting their practical application in environmental remediation. To tackle these issues, the fabrication of magnetic COFs (MCOFs) has attracted tremendous attention. In this review, several reliable strategies for the fabrication of MCOFs are summarized. In addition, the recent application of MCOFs as outstanding adsorbents for the removal of contaminants including toxic metal ions, dyes, pharmaceuticals and personal care products, and other organic pollutants is discussed. Moreover, in‐depth discussions regarding the structural parameters affecting the practical potential of MCOFs are highlighted in detail. Finally, the current challenges and future prospects of MCOFs in this field are provided with the expectation to boost their practical application.

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“…Ni 0.6 Fe 2.4 O 4 -HT-COF adsorption capacities for Pb( ii ) were 411.80, 364.23, and 340.89 mg g −1 at 298 K (with pH = 5), 308 K, and 318 K, respectively. 168 COF-ETTA-2, 3-Dha was synthesized as a red powder by condensation of 2,3-Dha and 4,4′,4′,4′′-(ethene-1,1,2,2-tetrayl) tetraaniline (ETTA) in a 1,4-dioxane/acetic acid (aq., 9 mol L −1 ) solvent mixture at 120 °C for 72 hours. The amount of adsorption grows quickly during the early period, with Cd take up of 39.6 mg g −1 at 1 min and 95.6 mg g −1 at 20 min, until reaching a constant state after 60 min, at which point adsorption saturation of 116 mg g −1 is achieved.…”

Section: Removal Of Heavy Metal Ions From Wastewater With Popsmentioning

confidence: 99%