Recent advances about metal–organic frameworks in the removal of pollutants from wastewater

Gao, Qiang; Xu, Jian; Bu, Xian‐He

doi:10.1016/j.ccr.2018.03.015

Cited by 533 publications

(222 citation statements)

References 155 publications

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“…MOFs, crystalline materials formed through the linkage of metal ions or clusters with organic building units, with their high crystallinity, high surface area, permanent porosity, and tunable pore structures, have been reported as efficient and selective adsorbents, as well as photocatalysts for water remediation . However, their stability in water, especially under extreme pH conditions, can be an issue …”

Section: Adsorption In Watermentioning

confidence: 99%

“…[67] Advances in the design and development of highly efficient adsorbentsh ave intensified in the recent years. Different literature reports and critical reviewsa ddress the applicationo fd ifferenta dsorbents for water contaminantc apturei ncluding activatedc arbon, [68] carbon nanomaterials (graphene, fullerenes, nanotubes), [69] zeolites, [70] inorganic materials (e.g.,M oS 2 , [71] CeO 2 ), [72] metal-organic frameworks (MOFs), [73][74][75] molecularly imprinted polymers (MIPs), [76,77] porous organic polymers (POPs), [78][79][80] andh ybrid membranes. [81] Activated carbon is one of the most reported commercially availablem aterials for removing pollutantsf rom water, [68,69] since it is inexpensive and features large surfacearea.…”

Section: Adsorption In Watermentioning

confidence: 99%

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Tailoring Covalent Organic Frameworks To Capture Water Contaminants

Fernandes

Romero

Espiña

et al. 2019

Chemistry A European J

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Covalent organic frameworks (COFs) are attractive materials receiving increasing interest in the literature due to their crystallinity, large surface area, and pore uniformity. Their properties can be tailored towards specific applications by judicious design of COF building blocks, giving access to tailor‐made pore sizes and surfaces. In this Concept article, developments in the field of COFs that have allowed these materials to be explored for contaminant adsorption are discussed. Strategies to obtain water‐stable materials with highly ordered structures and large surface areas are reviewed. Post‐synthetic modification approaches, by which pore surfaces can be tuned to target specific contaminants, are described. Recent advances in COF formulations, crucial for future implementation in adsorption devices, are highlighted. At the end, future challenges which need to be addressed to allow for the deployment of COFs for the capture of water contaminants will be discussed.

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Section: Adsorption In Watermentioning

confidence: 99%

Section: Adsorption In Watermentioning

confidence: 99%

Tailoring Covalent Organic Frameworks To Capture Water Contaminants

Fernandes

Romero

Espiña

et al. 2019

Chemistry A European J

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“…Water pollution is a serious issue which is the result of the rapid development of industries . This possesses a critical threat to human beings, plants, and animals.…”

Section: Introductionmentioning

confidence: 99%

A Novel and Efficient Dyes Degradation Using Bentonite Supported Zero‐Valent Iron‐Based Nanocomposites

2020

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In this research, different nanocomposites were synthesized based on bentonite supported with zero‐valent iron in mono‐, bi‐, and tri‐metallic systems and used to degrade two model anionic dyes, methyl orange and Congo red, from wastewaters. The synergic effect between bentonite and the nanoscale zero‐valent iron‐based tri‐metallic system was investigated along with degradation efficiencies. It was found out that bentonite supported with Fe−Cu‐Ag tri‐metallic nanoscale system yields higher degradation efficiency and maximum synergic effect for both of dyes occurs, especially at acidic medium. Therefore, the characterization of this nanocomposites was conducted by BET, FTIR, SEM‐EDX, TEM and XRD which demonstrated successful loading of nanoscale Fe−Cu‐Ag tri‐metallic onto bentonite clay. All involved variables affecting the dye degradation efficiencies were modeled and optimized using central composite design under batch adsorption procedure. The Nelder‐Mead non‐linear optimization algorithm was used and the outcomes showed the optimum conditions regarding the removal of 300 ppm of both dyes, for the nanocomposites dose of 4.0 mg.mL−1, pH of 3 and contact time of 18 min were attained. Furthermore, dyes adsorption kinetics were investigated. In addition, the proposed nanocomposite was successfully applied to reduce the concentration of methyl orange and Congo red as hazardous dyes in the water and wastewater samples.

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“…So far, the development of various adsorbents has been successful because of functional carbon materials (graphene [16] or porous carbon [17]), mesoporous materials [18] and MOFs [19][20][21][22]. For example, MOFs [23][24][25], carbonaceous materials (such as carbon nanotubes, graphene, biochar and activated carbon) [26] and clay [27] have been applied in adsorptive removal of contaminants of emerging concern, hazardous organics and persistent organic pollutants. Carbonaceous materials have been particularly attractive in the purification of contaminated water via adsorption because of the easy preparation of carbon materials [26], especially from waste materials [28].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of bulky dye molecules from water with mesoporous polyaniline-derived carbon

Park

Khan

et al. 2020

Beilstein J. Nanotechnol.

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Polyaniline-derived carbon (PDC) was obtained via pyrolysis of polyaniline under different temperatures and applied for the purification of water contaminated with dye molecules of different sizes and charge by adsorption. With increasing pyrolysis temperature, it was found that the hydrophobicity, pore size and mesopore volume increased. A mesoporous PDC sample obtained via pyrolysis at 900 °C showed remarkable performance in the adsorption of dye molecules, irrespective of dye charge, especially in the removal of bulky dye molecules, such as acid red 1 (AR1) and Janus green B (JGB). For example, the most competitive PDC material showed a Q 0 value (maximum adsorption capacity) 8.1 times that of commercial, activated carbon for AR1. The remarkable adsorption of AR1 and JGB over KOH-900 could be explained by the combined mechanisms of hydrophobic, π-π, electrostatic and van der Waals interactions. 597

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Recent advances about metal–organic frameworks in the removal of pollutants from wastewater

Cited by 533 publications

References 155 publications

Tailoring Covalent Organic Frameworks To Capture Water Contaminants

Tailoring Covalent Organic Frameworks To Capture Water Contaminants

A Novel and Efficient Dyes Degradation Using Bentonite Supported Zero‐Valent Iron‐Based Nanocomposites

Adsorptive removal of bulky dye molecules from water with mesoporous polyaniline-derived carbon

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